Novel Circularly Polarized Substrate Integrated Waveguide Slot Antenna By Using A Polarizer Technique

Subject Areas : journal of Artificial Intelligence in Electrical Engineering

Omid  Khodadad ¹ ()
Pejman  Mohammadi ² ()

Received: 2015-11-17 Accepted : 2015-11-17 Published : 2014-12-01

Keywords: circularly-polarized, cavity-backed, RHCP, SIW,

Abstract :

circularly-polarized antenna is built based on new SIW(substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (RHCP) and fabricated in two separate layers. A broadband impedancebandwidth of 13.9% and a RHCP axial ratio of 0.5GHz have been obtained under thecondition of less than VSWR ≤2 and axial ratio≤ 3 dB, respectively.

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