A Compact and Dual-Band Circularly Polarized Petal-Shaped Antenna With Broad Beamwidth for Multiple Global Navigation Satellite Systems

作者：Wang Yilong^*; Xiao Shaoqiu; Shang Yuping; Xing Fan

来源：IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IEEE MTT-S IMWS-AMP 2015), 2015-07-01 to 2015-07-03.

• Circular-polarization
• dual-band
• wide-beamwidth
• multiple GNSS

In this paper, we present a novel compact broad-beamwidth dual-band circularly-polarized(CP) antenna, named petal-shaped antenna. The antenna is composed of a petal-shaped patch and four loaded monopoles around it. The lateral size is miniaturized by adding a crossed-slot on the patch. The antenna's overall dimension is optimized to be 0.37(lambda 0) x 0.37(lambda 0) x 0.04(lambda 0). Its half power beamwidth(HPBW) is 170 degrees in both the x-z and y-z planes at GPS L1 band. Thanks to its broad beamwidth and wide 3-dB axial-ratio bandwidth, it can be utilized for multiple GNSS, including COMPASS, Galileo, GPS and GLONASS.

• 出版日期2015
• 单位电子科技大学