Development and Miniaturized of Circularly Polarization Diversity at Cavity Backed SIW Antenna for X-Band Application

Saeid Karamzadeh; Vahid Rafiei; Hasan Saygin

doi:10.1515/freq-2018-0230

Article

Development and Miniaturized of Circularly Polarization Diversity at Cavity Backed SIW Antenna for X-Band Application

Saeid Karamzadeh , Vahid Rafiei and Hasan Saygin

Published/Copyright: August 30, 2019

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From the journal Frequenz Volume 73 Issue 9-10

Abstract

In this work circularly polarization diversity has been achieved by utilizing two Schottky diodes on low profile cavity-backed substrate integrated waveguide (CBSIW). In comparison with other studies in the literature, the size of antenna has been reduced to 0.54λg × 0.76λg by helping a 50-Ohm coaxial feed line. The impedance bandwidth, axial ratio bandwidth and antenna gain are improved to 10.02 %, 5.2 % and 7.68dBi, respectively. In addition, the proposed antenna can generate either a left-hand circularly polarized (LHCP) or a right-hand circularly polarized (RHCP) radiation. The developed antenna was fabricated and tested and the achieved results were in good agreement with the simulated one.

Keywords: cavity backed; CP; polarization diversity; SIW

References

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Received: 2018-11-04

Published Online: 2019-08-30

Published in Print: 2019-09-25

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Articles in the same Issue

https://doi.org/10.1515/freq-2018-0230

Keywords for this article

cavity backed; CP; polarization diversity; SIW