A single-feeding circularly polarized microstrip antenna with the effect of hybrid feeding

作者：Hyungrak Kim, Byoung Moo Lee, Young Joong Yoon · 发表于：IEEE Antennas and Wireless Propagation Letters · 年份：2003 · DOI：10.1109/lawp.2003.813382 · 被引用次数：69 · 研究领域：Antenna Design and Analysis、Energy Harvesting in Wireless Networks、Microwave Engineering and Waveguides

A single series feed cross-aperture coupled microstrip antenna with the effect of hybrid feeding is proposed and demonstrated. To understand this antenna better, the characteristics according to the variation of parameters are shown. This proposed antenna has the following advantages of the effect of hybrid feeding: improved axial ratio bandwidth (4.6%); high gain (8 dBi); flat 3 dB gain bandwidth (above 16.7%). In measured radiation patterns, we have 3 dB beamwidth of /spl plusmn/30/spl deg/ and good F/B (front to back ratio) of 20 dB.