scholarly journals A CIRCULARLY POLARIZED QUAD-BAND ANNULAR RING ANTENNA WITH ASYMMETRIC GROUND PLANE USING THEORY OF CHARACTERISTIC MODES

2021 ◽  
Vol 100 ◽  
pp. 51-68
Author(s):  
Reshmi Dhara ◽  
Sanjeev Yadav ◽  
Mahendra Mohan Sharma ◽  
Sanjay Kumar Jana ◽  
Mahesh Chandra Govil
Keyword(s):  
Ground Plane ◽  
Circularly Polarized ◽  
Annular Ring ◽  
Characteristic Modes ◽  
Ring Antenna

A Miniaturized Circularly Polarized Implantable Annular-Ring Antenna

2017 ◽  
Vol 16 ◽  
pp. 2566-2569 ◽  
Author(s):  
Rongqiang Li ◽  
Yong-Xin Guo ◽  
Bing Zhang ◽  
Guohong Du
Keyword(s):  
Circularly Polarized ◽  
Annular Ring ◽  
Ring Antenna

scholarly journals Circularly Polarized Annular Ring Antenna With Wide Axial-Ratio Bandwidth for Biomedical Applications

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 59999-60009 ◽  
Author(s):  
Li-Jie Xu ◽  
Yaming Bo ◽  
Wen-Jun Lu ◽  
Lei Zhu ◽  
Chengfei Guo
Keyword(s):  
Biomedical Applications ◽  
Axial Ratio ◽  
Circularly Polarized ◽  
Annular Ring ◽  
Ring Antenna

scholarly journals CPW-fed circularly-polarized antenna array with high front-to-back ratio and low-profile

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 651-655 ◽  
Author(s):  
Yilin Liu ◽  
Kama Huang
Keyword(s):  
Antenna Array ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Axial Ratio ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Feeding Method ◽  
Circularly Polarized ◽  
Low Profile ◽  
Novel Design

Abstract A novel design of a coplanar waveguide (CPW) feed antenna array with circular polarization (CP) and a high front-to-back ratio is described. The proposed CP array is achieved by using a compact CPW–slotline transition network etched in the ground plane. The measured results show that this kind of feeding method can improve the impedance bandwidth, as well as the axial ratio bandwidth of the CP antenna array and provide adequate gain. The proposed array can achieve a 6.08% impedance bandwidth and a 4.10% CP bandwidth. Details of the antenna design and experimental results are presented and discussed.

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