A New Broadband Circularly Polarized Monopole Antenna With Modified Ground
This letter presents a new broadband circularly polarized(CP)monopole antenna with modified ground.The proposed antenna fed by coaxial probe consists of a square ground loaded with an L-shaped branch,which is capable of generating broadband CP radiation.In addition,an I-shaped slit is embedded into the ground plane to improve the impedance matching.The presented antenna has a 10 dB return loss bandwidth from 1.82 to 4.21 GHz(79.3%centered at 3.02 GHz),and a wide 3 dB axial-ratio(AR)bandwidth from 1.84 to 3.95 GHz(72.9%centered at 2.89 GHz).The measured gains are greater than 2.0 dBic in the AR band,and the gain variation within the AR band is less than 1 dBic,which means a good flat gain feature in the broad frequency band.Both the simulated and measured results validate the proposed design.
broadband antenna circularly polarized antenna monopole antenna flat gains
Lei Wang Wenxiao Fang Yunfei En Yun Huang Weiheng Shaoa Bin Yao
The Science and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou,China
国际会议
杭州
英文
1-4
2018-12-03（万方平台首次上网日期，不代表论文的发表时间）