Yanal Faouri
University of Jordan, Electrical Engineering, Faculty Member
- HFSS, MICRO STRIP ANTENNA USING HFSS, Antennas & Radio Wave Propagation, Antennas, Microstrip antenna design, Microstrip Antennas, and 10 moreMicrostrip Antennas and Arrays, Microstrip Patch Antenna, Antenna Design, Antenna, Antenna arrays, Smart Antenna, Reconfigurable Antennas, Antennas and propagation, Millimeter Wave Antennas, and compact UWB printed monopole antenna designedit
- (Senior Member, IEEE) received the B.Sc. degree in electrical engineering from the University of Jordan, Amman, Jorda... more(Senior Member, IEEE) received the B.Sc. degree in electrical engineering from the University of Jordan, Amman, Jordan, in 2007, and the M.Sc. and PhD. degrees in electrical engineering from the King Fahd University of Petroleum and Minerals (KFUPM) Dhahran, Saudi Arabia, in 2010 and 2014, respectively.
He joined the Department of Electrical Engineering at Philadelphia University in 2014, and from September 2015, he has been an Assistant Professor at the University of Jordan's Department of Electrical Engineering. Antenna design, applied electromagnetic, RF and microwave circuit design, dielectric-loaded waveguides, printed antennas, compact multiband antennas, and electromagnetic compatibility are among his current research interests. Dr. Faouri has published over 30 research papers in peer-reviewed journals and conferences around the world. He serves as a reviewer for several prestigious journals, including IEEE Access, Transactions on Components, Packaging and Manufacturing Technology (TCPMT), International Journal of Applied Electromagnetics and Mechanics (IJAEM), International Journal of Communication Systems (IJCS), and the Microwave and Optical Technology Letter (MOTL).edit
Research Interests:
To support various fifth generation (5G) wireless applications, a small, printed bowtie-shaped microstrip antenna with meandered arms is reported in this article. Because it spans the broad legal range, the developed antenna can serve or... more
To support various fifth generation (5G) wireless applications, a small, printed bowtie-shaped microstrip antenna with meandered arms is reported in this article. Because it spans the broad legal range, the developed antenna can serve or reject a variety of applications such as wireless fidelity (Wi-Fi), sub-6 GHz, and ultra-wideband (UWB) 5G communications due to its multiband characterization and optimized rejection bands. The antenna is built on an FR-4 substrate and powered via a 50-Ω microstrip feed line linked to the right bowtie’s side. The bowtie’s left side is coupled via a shorting pin to a partial ground at the antenna’s back side. A gradually increasing meandering microstrip line is connected to both sides of the bowtie to enhance the rejection and operating bands. The designed antenna has seven operating frequency bands of (2.43–3.03) GHz, (3.71–4.23) GHz, (4.76–5.38) GHz, (5.83–6.54) GHz, (6.85–7.44) GHz, (7.56–8.01) GHz, and (9.27–13.88) GHz. The simulated scattering ...
Research Interests:
An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands. In this paper, the filter is... more
An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands. In this paper, the filter is designed on Rogers RT/Duroid 5880-substrate and its input and output ports are terminated by 50 Ω microstrip feed line. The filter passbands consist of low pass filter (LPF) with tunable cutoff frequency which can reach 0.94 GHz, then several tunable bandpass filters (BPFs) that can cover the following frequency ranges BPF1 (1.94-3.33 GHz), BPF2 (3.83-4.23 GHz), BPF3 (4.53-5.56 GHz) and BPF4 (6.83-7.48 GHz) with insertion loss (IL) of |S21| ≤ 3 dB. The designed filter is the binomial type with 3 elements that are implemented in three shunt stubs with the middle stub being shorted. A parametric study was conducted for the optimum location of the varactor diode and an external DC biasing circuit introduced to produce the required reverse biasing for the varactor diode and its effect was considered. The demonstrated filter is investigated using the high-frequency structure simulator (HFSS). The measured scattering parameters' S11 (reflection coefficient) and S21 (transmission coefficient) results show good agreement with the simulated values.
Research Interests:
Research Interests:
Fourth generation mobile networks (also called Long Term Evolution -LTE) will make use of multiple-input-multipleoutput (MIMO) technology to achieve very high data rates in both the uplink and downlink. MIMO is based on the use of... more
Fourth generation mobile networks (also called Long Term Evolution -LTE) will make use of multiple-input-multipleoutput (MIMO) technology to achieve very high data rates in both the uplink and downlink. MIMO is based on the use of multiple antenna systems within the mobile terminal as well as the base station. The small size of the mobile terminal poses series integration and antenna miniaturization challenges. In this work, we propose an electrically small antenna (ESA) that is based on the meander antenna structure that operates in the 800 MHz band of LTE and 3G cellular standards. The antenna has a measured center frequency of 897 MHz, bandwidth of 185 MHz and total size of 23.5 × 43 mm 2 . Both simulation and experiment results are presented. A study on the effect of the various antenna parameters that will aid the designer fine tune his structure is also discussed.
Research Interests:
A miniature planar microstrip antenna of bowtie shape with four frequency bands have been rejected to avoid interfering with several services operating within these bands. A quarter wavelength transformer is introduced for matching... more
A miniature planar microstrip antenna of bowtie shape with four frequency bands have been rejected to avoid interfering with several services operating within these bands. A quarter wavelength transformer is introduced for matching purposes. The bowtie right side has a horizontal slit to enhance the bandwidth and it is connected to the microstrip feed line, while its left side is connected to the partial ground plane in the back side through a shorting pin. The simulated Reflection Coefficient $S_{11}$ has a 10-dB range from 2.69 to 15.06 GHz with rejection bands of (3.39 - 4.23) GHz, (4.64 - 6.07) GHz, (6.82 - 8.94) GHz and (9.75 - 12.19) GHz. The proposed antenna can achieve a maximum gain of 5.79 dB.
Research Interests:
Design and fabrication of a dual electrically small MIMO antenna system for 4G terminals
Research Interests: LTE and Meander line
The design of a massive multiple-input-multiple-output (mMIMO) antenna system based on patch antennas is presented in this paper. The array consists of 16 ports, each port consists of a 2×2 patch antenna array with different phase... more
The design of a massive multiple-input-multiple-output (mMIMO) antenna system based on patch antennas is presented in this paper. The array consists of 16 ports, each port consists of a 2×2 patch antenna array with different phase excitation at each element to tilt the beam toward different directions to provide lower correlation coefficient values. A fixed progressive phase feed network is designed to provide the beam tilts. The proposed antenna system is designed using a 3-layer FR4 substrate with total size of 33.33×33.33×0.16 cm3.
Research Interests:
A metamaterial with frequency reconfigurability over a wide range of frequencies is presented in this paper. The proposed unit-cell has a circular geometrical shape with a triple split-ring resonator (SRR) and stepped-impedance resonator... more
A metamaterial with frequency reconfigurability over a wide range of frequencies is presented in this paper. The proposed unit-cell has a circular geometrical shape with a triple split-ring resonator (SRR) and stepped-impedance resonator (SIR) technique applied to provide better miniaturization factor. The operating frequency is controlled by the presence/absence of a perfect conductor switches. Employing nine switches, the frequency is controlled over the range (1–7) GHz providing a various range of resonance frequencies, frequency bands, and different bandwidths. The suggested metamaterial is simulated using Ansys Electronics Desktop simulator (HFSS), and MATLAB software is used to analyze the characteristics of the unit-cell in terms of permittivity, permeability, and the refractive index. The reflection and transmission coefficients are extracted to observe the behavior of the metamaterial. The results show a negative near-zero refractive index at a certain frequency range. The ...
Research Interests:
A 4-element 2×2 sub-array based on patch antennas operating at 3.6 GHz is proposed. The sub-array can provide 4 polarizations. The design consists of two substrates (RO4350B) with 8r = 3.66 with heights of 1.524 mm and 0.762 mm for the... more
A 4-element 2×2 sub-array based on patch antennas operating at 3.6 GHz is proposed. The sub-array can provide 4 polarizations. The design consists of two substrates (RO4350B) with 8r = 3.66 with heights of 1.524 mm and 0.762 mm for the top and bottom layers respectively. The investigated technique required adding two orthogonal slots inside the patch to allow placing PIN diodes and their connection to the biasing circuitry which is located at the bottom layer. This model provides four types of antenna polarization which are left-handed circular polarization (LHCP), right-handed circular polarization (RHCP) and two cases of linear polarization (LP_ON and LP_OFF). The maximum obtained gain was 9.63 dB and the bandwidth was 145 MHz.
Research Interests:
A miniature planar meandered microstrip bowtie-shaped antenna has been proposed for wireless applications. The designed antenna can serve many applications through its multiband characterization and as a UWB with six rejection bands since... more
A miniature planar meandered microstrip bowtie-shaped antenna has been proposed for wireless applications. The designed antenna can serve many applications through its multiband characterization and as a UWB with six rejection bands since it covers the UWB licensed range. The antenna is designed on FR4-substrate and fed by a 50 Ω microstrip feed line connected to the right portion of the bowtie. The left side of the bowtie is connected to the partial ground at the bottom layer through a shorting pin. Both sides of the bowtie have a gradually increased zigzag microstrip line optimized to enhance the notches and the resonant frequencies. The proposed antenna is investigated using the high-frequency structure simulator (HFSS). The simulated reflection coefficient S11 result shows bandwidth ranges from 2.55 to 10.94 GHz at return loss (RL = |S11|) ≥ 10 dB with rejected frequency bands of (2.66 – 4) GHz, (4.25 – 4.94) GHz, (5.08 – 5.91) GHz, (6.6 – 6.96) GHz, (7.25 – 7.7) GHz and (8 – 9.57) GHz. The proposed antenna can achieve a maximum gain of 4.42 dB. The antenna radiation patterns exhibit a directional in E-plane and an omnidirectional shape in H-plane at lower frequencies.
Research Interests:
A compact planar microstrip bowtie-shaped antenna has been designed for UWB wireless applications. The designed antenna has been optimized to reject three frequency bands to avoid interference with the applications utilized in these... more
A compact planar microstrip bowtie-shaped antenna has been designed for UWB wireless applications. The designed antenna has been optimized to reject three frequency bands to avoid interference with the applications utilized in these bands. The antenna is designed on 1.6 mm thick FR4-substrate and fed by 50 Ω microstrip feed line. Two quarter wavelength transformers are introduced to enhance the impedance matching. The bowtie right side has a horizontal slit to enhance the bandwidth and it is connected to the microstrip feed line, while its left side is composed of a parasitic of bowtie shaped and a microstrip line connected to the partial ground plane in the back side through a shorting pin. The proposed antenna is investigated using the high-frequency structure simulator (HFSS). The simulated scattering parameter S11 (Reflection Coefficient) result shows bandwidth ranges from 1.95 to 12.92 GHz at return loss (RL = |S11|) ≥ 10 dB with rejection bands of (2.13 – 3.96) GHz, (4.42 – 5....
Research Interests:
Research Interests:
This paper proposes a rectangular patch antenna fed from two orthogonal microstrip lines for polarization diversity. Different polarization states are achieved by using four PIN diodes placed at the patch corners. The PIN diodes are... more
This paper proposes a rectangular patch antenna fed from two orthogonal microstrip lines for polarization diversity. Different polarization states are achieved by using four PIN diodes placed at the patch corners. The PIN diodes are biased by an external DC circuitry to switch their states. This antenna has an operating frequency of around 2.4 GHz and can produce LHCP, RHCP, and linear polarization when the signal is fed from the horizontal feed and the vertical feed, so six polarization states are achieved. Antenna characteristics such as reflection coefficient, axial ratio, gain, and radiation pattern are being investigated through optimizing all antenna dimensions. This antenna is suitable for many wireless applications.
Research Interests:
A compact size 2 x 1 multiple-input-multiple-output (MIMO) antenna system for super wideband (SWB) application is presented in this paper. The suggested MIMO antenna consists of two identical hexagonal microstrip shape. Each of the... more
A compact size 2 x 1 multiple-input-multiple-output (MIMO) antenna system for super wideband (SWB) application is presented in this paper. The suggested MIMO antenna consists of two identical hexagonal microstrip shape. Each of the radiators is fed by a 50 Ω microstrip line. To have better impedance matching two tapered microstrip feed are merged into the design. Two PINdiodes have been used in each unit for the operation of the antenna. The antenna behavior has been directed to operate within an SWB range of (2.39 - 27.51) GHz with a rejection band from 4.13 to 6.51 GHz when both diodes are forward biased or to operate in the full band (3.37 -27.38) GHz when the diodes are reversed biased. The proposed MIMO system has perfect isolation of 20 dB and a maximum gain of 8.23 dB. Several parameters such as an Envelope Correlation Coefficient (ECC), Diversity gain, Radiation patterns and Radiation efficiency have been monitored and investigated for an efficient and clear view in understa...
A frequency reconfigurable metamaterial-based microstrip antenna is presented in this paper. The proposed antenna consists of three split-ring resonators (SRR) and a tapered feeder placed on the top layer of a 30 × 25 × 1.6 mm3 substrate.... more
A frequency reconfigurable metamaterial-based microstrip antenna is presented in this paper. The proposed antenna consists of three split-ring resonators (SRR) and a tapered feeder placed on the top layer of a 30 × 25 × 1.6 mm3 substrate. Nine PIN-Diode switches are distributed around the three rings, each ring contains 3 switches with 120-degree spacing. Reconfigurability is achieved by varying the condition of these switches. The suggested antenna is simulated using Ansys Electronics Desktop simulator (HFSS), and MATLAB software is used to analyze the characteristics of the metamaterial unit-cell. Single and dual bands are produced at 2.8, 3.025, (2.45 and 4.75) and (2.93 and 4.85) GHz. Radiation patterns, gain, input impedance and radiation efficiency are simulated to have a better observation of the performance of the antenna.
A miniature planar microstrip antenna of bowtie shape with four frequency bands have been rejected to avoid interfering with several services operating within these bands. A quarter wavelength transformer is introduced for matching... more
A miniature planar microstrip antenna of bowtie shape with four frequency bands have been rejected to avoid interfering with several services operating within these bands. A quarter wavelength transformer is introduced for matching purposes. The bowtie right side has a horizontal slit to enhance the bandwidth and it is connected to the microstrip feed line, while its left side is connected to the partial ground plane in the back side through a shorting pin. The simulated Reflection Coefficient $S_{11}$ has a 10-dB range from 2.69 to 15.06 GHz with rejection bands of (3.39 - 4.23) GHz, (4.64 - 6.07) GHz, (6.82 - 8.94) GHz and (9.75 - 12.19) GHz. The proposed antenna can achieve a maximum gain of 5.79 dB.
Multiple-input-multiple-output (MIMO) technology will be used by fourth generation mobile networks (also called Long Term Evolution — LTE) to achieve very high data rates in both the uplink and downlink channels. MIMO is based on the use... more
Multiple-input-multiple-output (MIMO) technology will be used by fourth generation mobile networks (also called Long Term Evolution — LTE) to achieve very high data rates in both the uplink and downlink channels. MIMO is based on the use of multiple antenna systems within the mobile terminal as well as the base station. Such antenna systems are required to fit within the hand-held (mobile) terminal which occupies a small size (typically not more than 60 × 100 mm2). Antenna integration and miniaturization are two major challenges. We propose an electrically small antenna (ESA) that is based on the meander antenna structure that operates in the 800 MHz band of LTE and 3G cellular standards. The antenna has a measured center frequency of 897 MHz, bandwidth of 185 MHz and total size of 23.5 × 43 mm2. In addition, we present the design of a dual element MIMO antenna system based on the ESA antenna designed. The dual element MIMO antenna system covers the bands from 760–886 MHz and occupi...
Research Interests:
A microstrip patch Antenna with different radiation patterns reconfigurability is proposed. The antenna operates at a resonant frequency of 2.4 GHz and consists of two layers of Rogers TMM4 with a relative permittivity of 4.5 and loss... more
A microstrip patch Antenna with different radiation patterns reconfigurability is proposed. The antenna operates at a resonant frequency of 2.4 GHz and consists of two layers of Rogers TMM4 with a relative permittivity of 4.5 and loss tangent of 0.002. The substrate size is 100 × 116 mm2 and the height of each substrate is 1.524 mm. The results investigate the scattering parameter S11 and the radiation patterns due to different combinations of the operating diodes that are biased. The antenna could switch between three different pattern shapes with different beam orientation and power levels and achieve a maximum gain of 6.9 dB.
A microstrip patch antenna fed with two opposing microstrip lines is designed. The antenna has four cuts in its corners in order to introduce PIN diode to have a polarization agile antenna by changing the diodes states. Two vertical slots... more
A microstrip patch antenna fed with two opposing microstrip lines is designed. The antenna has four cuts in its corners in order to introduce PIN diode to have a polarization agile antenna by changing the diodes states. Two vertical slots inside the patch are created for axial ratio and bandwidth enhancement. A separate DC biasing is inserted for proper operation of the diodes. Some antenna characteristics such as reflection coefficient, axial ratio, radiation pattern and gain are investigated and optimized through several parametric studies of the antenna geometry. This type of antenna is widely preferred in wireless communication systems.
A super wideband frequency reconfigurable antenna is designed for UWB wireless applications. The utilized antenna is of planar type with a modified hexagonal microstrip shape and tapered microstrip feed to provide a better impedance... more
A super wideband frequency reconfigurable antenna is designed for UWB wireless applications. The utilized antenna is of planar type with a modified hexagonal microstrip shape and tapered microstrip feed to provide a better impedance matching. The frequency behavior of the designed antenna has been controlled by utilizing two PIN diodes operate simultaneously. The antenna characteristics have been optimized to operate within an SWB range of (2.77 – 27.68) GHz with a rejection band from 3.84 to 6.69 GHz when both diodes are in the ON state or to operate in the full band (3.38 – 27.65) GHz when the diodes are in the OFF state. Different antenna parameters have been monitored and investigated for an efficient and clear view in understanding the proposed antenna operation. The results show a super band where the reflection coefficient is below the −10 dB level with a peak gain of 7.64 dB. The antenna patterns exhibit an omnidirectional shape at lower frequencies and less directivity at t...
In microwave applications, filters are used to pass frequencies within a certain range(s), and rejects the other. The microwave bandpass filter at high frequencies above 0.3 GHz will be constructed using transmission lines instead of... more
In microwave applications, filters are used to pass frequencies within a certain range(s), and rejects the other. The microwave bandpass filter at high frequencies above 0.3 GHz will be constructed using transmission lines instead of lumped elements due to the shorter wavelength. This project is intending to design a tunable microwave bandpass filter to be used in WIFI, Bluetooth and GSM applications, within the range of 1.85 GHz to 3.27 GHz with a maximum insertion loss of 1.14 dB, and a low pass filter with cutoff frequency varies from 0.61 GHz to 0.93 GHz. So, this filter is designed to work for these applications by changing the resonant frequency, using a varactor diode. The proposed filter is a maximally flat third order filter implemented using stubs.
This paper is focused on designing a bandpass filter at microwave bands that uses alternating very high and very low characteristic impedance microstrip transmission lines and can be electronically tuned by using a hyper-abrupt junction... more
This paper is focused on designing a bandpass filter at microwave bands that uses alternating very high and very low characteristic impedance microstrip transmission lines and can be electronically tuned by using a hyper-abrupt junction varactor to shift the center frequency. intending to present a Dual-Band Tunable microwave bandpass filter to be used in WIFI, Bluetooth, GSM, and other antennas applications. The filter is a maximally flat third order filter, implemented using a stepped impedance method. The first band is tuned between 1. 75–2.66 GHz with an average bandwidth of 160 MHz, and the second band covers the range between 3.85–4.54 GHz with an average bandwidth of 70 MHz.
Research Interests:
In this paper, a new planar hexagonal shaped antenna with triple band rejections is presented. The hexagonal patch is designed on FR4-substrate, having circular cuts at its vertices and fed by $50 \Omega $ micro-strip triangular tapered... more
In this paper, a new planar hexagonal shaped antenna with triple band rejections is presented. The hexagonal patch is designed on FR4-substrate, having circular cuts at its vertices and fed by $50 \Omega $ micro-strip triangular tapered feed line. This antenna with a partial ground plane and five half circular sleeves achieves a 26.15 GHz bandwidth (with return loss $\geq 10$ dB). Triple-frequency band rejections are achieved by adding an inverted E-shaped stub in addition to two triangular slots in the patch and square slot with a parasitic square inside. The proposed antenna is investigated using the high-frequency structure simulator (HFSS). The simulated scattering parameter S11 (Reflection Coefficient) results show three band rejections (1.66. – 3.29), (4.72 - 5.81) and (7.86 - 8.62) GHz to reject the unwanted interference from several applications as WiMAX and satellite communications. A small value of gain at the rejection bands with good radiation patterns in E-plane and H-p...
Research Interests:
A slot antenna has been designed and optimized to obtain frequency reconfigurability over a wide range of frequencies. The proposed antenna has a rectangular slot with a hexagonal slot being placed in the inner conducting element. The... more
A slot antenna has been designed and optimized to obtain frequency reconfigurability over a wide range of frequencies. The proposed antenna has a rectangular slot with a hexagonal slot being placed in the inner conducting element. The antenna is fed through a 50Ω microstrip feed line placed on the other side of the substrate. The resonant frequency is controlled by changing the capacitance value of the varactor diode place between the two conducting elements providing a various range of resonance frequencies, frequency bands, and different bandwidths. The suggested slot antenna is simulated using the Ansys Electronics Desktop simulator (HFSS). The reflection coefficient shows the quad frequency bands cover (2.31 − 2.5), (2.9 − 3.27), (4.28 − 5.23), and (5.4 − 5.74) GHz. Other antenna parameters have been monitored to verify its performance such as gain, radiation efficiency, input impedance, and radiation patterns.
In this paper, a new planar bowtie-shaped antenna has been proposed for UWB wireless applications. The antenna is designed on FR4-substrate and fed by 50 Ω microstrip feed line with two quarter wavelength transformers for better impedance... more
In this paper, a new planar bowtie-shaped antenna has been proposed for UWB wireless applications. The antenna is designed on FR4-substrate and fed by 50 Ω microstrip feed line with two quarter wavelength transformers for better impedance matching. The bowtie right side has a horizontal slit to enhance the bandwidth and it is connected to the microstrip feed line, while its left side is connected to the partial ground plane in the back side through shorting pin. The proposed antenna is investigated using the high-frequency structure simulator (HFSS). The simulated scattering parameter S11 (Reflection Coefficient) result shows bandwidth ranges from 3.05 to 10.8 GHz at return loss (RL = |S11|) ≥ 10 dB. The proposed antenna has high gain value, omnidirectional radiation pattern in the H-plane and mushroom-Shaped in the E-plane at lower frequency edge are achieved.
Research Interests:
An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands. In this paper, the filter is... more
An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands. In this paper, the filter is designed on Rogers RT/Duroid 5880-substrate and its input and output ports are terminated by 50 Ω microstrip feed line. The filter passbands consist of low pass filter (LPF) with tunable cutoff frequency which can reach 0.94 GHz, then several tunable bandpass filters (BPFs) that can cover the following frequency ranges BPF1 (1.94-3.33 GHz), BPF2 (3.83-4.23 GHz), BPF3 (4.53-5.56 GHz) and BPF4 (6.83-7.48 GHz) with insertion loss (IL) of |S21| ≤ 3 dB. The designed filter is the binomial type with 3 elements that are implemented in three shunt stubs with the middle stub being shorted. A parametric study was conducted for the optimum location of the varactor diode and an external DC biasing circuit introduced to produce the required reverse biasing for the varactor diode and its effect was considered. The demonstrated filter is investigated using the high-frequency structure simulator (HFSS). The measured scattering parameters' S11 (reflection coefficient) and S21 (transmission coefficient) results show good agreement with the simulated values.
An enhanced hexagonal shaped planar antenna is presented for ultra-wideband (UWB) applications. In this paper, a hexagonal patch with six circular cuts at its vertices is designed on FR4-substrate with 50 Ω microstrip triangular tapered... more
An enhanced hexagonal shaped planar antenna is presented for ultra-wideband (UWB) applications. In this paper, a hexagonal patch with six circular cuts at its vertices is designed on FR4-substrate with 50 Ω microstrip triangular tapered feed line and a bevelled partial ground plane with five half circular sleeves. The design is investigated using the high-frequency structure simulator (HFSS). The simulated and measured scattering parameter S11 (Reflection Coefficient) results show good impedance matching in the frequency range (3-27.57 GHz) satisfying return loss (RL = |S 11 |) ≥ 10 dB with a percentage bandwidth (PBW) of 160.75%. High gain and efficiency, radiation pattern similar to the electric dipole in E-plane and good omnidirectionality in the H-plane are achieved.
ABSTRACT
Research Interests:
Multiple-input-multiple-output (MIMO) technology will be used by fourth generation mobile networks (also called Long Term Evolution-LTE) to achieve very high data rates in both the uplink and downlink channels. MIMO is based on the use of... more
Multiple-input-multiple-output (MIMO) technology will be used by fourth generation mobile networks (also called Long Term Evolution-LTE) to achieve very high data rates in both the uplink and downlink channels. MIMO is based on the use of multiple antenna systems within the mobile terminal as well as the base station. Such antenna systems are required to fit within the hand-held (mobile) terminal which occupies a small size (typically not more than 60 × 100 mm2). Antenna integration and miniaturization are two major challenges. We propose an electrically small antenna (ESA) that is based on the meander antenna structure that operates in the 800 MHz band of LTE and 3G cellular standards. The antenna has a measured center frequency of 897 MHz, bandwidth of 185 MHz and total size of 23.5 × 43 mm2. In addition, we present the design of a dual element MIMO antenna system based on the ESA antenna designed. The dual element MIMO antenna system covers the bands from 760-886 MHz and occupies an area of 40 × 50 mm2. Both simulation and experiment results from the fabricated antennas are presented.
Research Interests:
Research Interests:
Fourth generation mobile networks (also called Long Term Evolution - LTE) will make use of multiple-input-multiple-output (MIMO) technology to achieve very high data rates in both the uplink and downlink. MIMO is based on the use of... more
Fourth generation mobile networks (also called Long Term Evolution - LTE) will make use of multiple-input-multiple-output (MIMO) technology to achieve very high data rates in both the uplink and downlink. MIMO is based on the use of multiple antenna systems within the mobile terminal as well as the base station. The small size of the mobile terminal poses series integration and antenna miniaturization challenges. In this work, we propose an electrically small antenna (ESA) that is based on the meander antenna structure that operates in the 800 MHz band of LTE and 3G cellular standards. The antenna has a measured center frequency of 897 MHz, bandwidth of 185 MHz and total size of 23.5 × 43 mm2. Both simulation and experiment results are presented. A study on the effect of the various antenna parameters that will aid the designer fine tune his structure is also discussed.