Summary
International Symposium on Antennas and Propagation
2014
Session Number:WE1B
Session:
Number:WE1B_02
Wideband Design of a Circularly-polarized Plate-laminated Waveguide Slot Array Antenna
Tatsuya Yamamoto, Miao Zhang, Jiro Hirokawa, Takuichi Hirano, Makoto Ando,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
A conventional circularly-polarized plate-laminated waveguide slot array antenna achieved 3.3% bandwidth for antenna efficiency more than 80% and 4.2% bandwidth for axial ratio less than 3dB in 60-GHz band. In this paper, the radiating part is designed for wider bandwidth by genetic algorithm using fast analysis method by the method of moments. This design of the 2x2-element array is improved 14.6% bandwidth for less than -14dB reflection and 3dB axial ratio. The 16x16-element array is improved 16.6% bandwidth for the axial ratio and 17.2% bandwidth for the antenna efficiency.