VSWR Measurement

A Microstrip Patch Antenna is a type of radio antenna with a low profile, which can be mounted on a low surface. It is a narrow band, wide-beam fed antenna fabricated by etching the antenna element pattern in metal trace bonded to the dielectric Substrate such as a printed circuit board with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. The main aim of this work is to design, develop and test the Printed Circuit antenna (Microstrip Patch antenna) suitable for use in L-band frequency range of 1-2GHz. This study also emphasizes on simulation of micro-strip patch antenna using IE3D software to simulate & study the radiation pattern & other radiation pattern parameters and comparison with specifications/requirements. Co-axial Feed technique was adopted and the location of the feed point was varied within the radiating patch to arrive at the point of minimum return loss. This work is also focused on characterization of fabricated antenna in view of parameters like VSWR, Antenna efficiency, Axial ratio, Gain and radiation pattern.

In this survey paper discuss the different shape of microstrip patch antenna or different slots. In the last decade different shape based antenna proposed. In the current scenario for the improvement of result parameters using different slot in patch. Currently Giga hertz range 1 to 10 GHz and different band at C, K, Ku, Ka based design are hot topic in between researches. In this survey paper also compared the different slots and different antenna that is shown in table 1. In this survey, compared the different antenna on the basis of different result parameter shape of antenna, type of feed, frequency range, Return loss (S11), Voltage Standing Wave ratio (VSWR), Gain, Number of band.

In this paper, a stacked multi resonant slotted micro strip  patch  antenna  (MPA)  has  been  proposed  which  is suitable to  be  used  for GSM, WLAN  standard  and  WiMAX applications.  The  antenna  has been  designed using substrate of FR4 material. In the designed stacked antenna, substrates having  different thickness  has  been  used.  The  bottom  stack of  designed  antenna  has  a  radiating  patch  of  circular  shape and the patch on the upper stack has rectangular shape and is flexible  in  nature.  The  antenna  has  a  feed  line  which  is connected to circular patch to feed power to the antenna. The feed  line  has  to  be  of  suitable  width  to  match  the  antenna impedance  with  port  impedance  of  50  ohms.  The  designed antenna has a defected ground structure in order to improve the antenna performance. The antenna performance has been measured in terms of antenna parameters such as impedance bandwidth  (GHz),  Return  loss  (dB),  antenna  impedance (ohms),  VSWR  and  Directivity  (dBi).  The  designed  antenna results  have  been simulated in  CST Microwave  Studio  2010. The practically designed antenna has been tested successfully by using Network analyzer E5071C. It has been observed that the practical results closely match with theoretical results.

A Microstrip Patch Antenna is a type of radio antenna with a low profile, which can be mounted on a low surface. It is a narrow band, wide-beam fed antenna fabricated by etching the antenna element pattern in metal trace bonded to the dielectric Substrate such as a printed circuit board with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. The main aim of this work is to design, develop and test the Printed Circuit antenna (Microstrip Patch antenna) suitable for use in L-band frequency range of 1-2GHz. This study also emphasizes on simulation of micro-strip patch antenna using IE3D software to simulate & study the radiation pattern & other radiation pattern parameters and comparison with specifications/requirements. Co-axial Feed technique was adopted and the location of the feed point was varied within the radiating patch to arrive at the point of minimum return loss. This work is also focused on characterization of fabricated antenna in view of parameters like VSWR, Antenna efficiency, Axial ratio, Gain and radiation pattern.

This study proposed to design of curved microstripline array antenna with more optimal characteristics parametric through optimise in width feeding stripline and its application for radar communications. Numeric analysis with an empirical formula in curved microstripline array antenna supports the counting in relation to the characteristics antenna that is optimally applied in communications. The simulations was created by using CST software. The result of simulation is to indicate Voltage Standing Wave Ratio (VSWR), Reflection coefficient, Return Loss and Gain with Vertical Linear Polarization. The optimise of curved microstripline array varians with the varians array and optimise varians in width of the feeding stripline. Based on this simulated result, curved microstripline array varians antenna is potential to developed antenna in radar communication in multiband frequency

A Microstrip Patch Antenna is a type of radio antenna with a low profile, which can be mounted on a low surface. It is a narrow band, wide-beam fed antenna fabricated by etching the antenna element pattern in metal trace bonded to the dielectric Substrate such as a printed circuit board with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. The main aim of this work is to design, develop and test the Printed Circuit antenna (Microstrip Patch antenna) suitable for use in L-band frequency range of 1-2GHz. This study also emphasizes on simulation of micro-strip patch antenna using IE3D software to simulate & study the radiation pattern & other radiation pattern parameters and comparison with specifications/requirements. Co-axial Feed technique was adopted and the location of the feed point was varied within the radiating patch to arrive at the point of minimum return loss. This work is also focused on characterization of fabricated antenna in view of parameters like VSWR, Antenna efficiency, Axial ratio, Gain and radiation pattern.

A Microstrip Patch Antenna is a type of radio antenna with a low profile, which can be mounted on a low surface. It is a narrow band, wide-beam fed antenna fabricated by etching the antenna element pattern in metal trace bonded to the dielectric Substrate such as a printed circuit board with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane. The main aim of this work is to design, develop and test the Printed Circuit antenna (Microstrip Patch antenna) suitable for use in L-band frequency range of 1-2GHz. This study also emphasizes on simulation of micro-strip patch antenna using IE3D software to simulate & study the radiation pattern & other radiation pattern parameters and comparison with specifications/requirements. Co-axial Feed technique was adopted and the location of the feed point was varied within the radiating patch to arrive at the point of minimum return loss. This work is also focused on characterization of fabricated antenna in view of parameters like VSWR, Antenna efficiency, Axial ratio, Gain and radiation pattern.