Design of low volume circularly polarized annular ring‐shaped planar antenna for GPS applications

2021 ◽  
Author(s):  
Niraj Agrawal ◽  
Anil K. Gautam ◽  
Rajesh Mishra
Keyword(s):  
Planar Antenna ◽  
Circularly Polarized ◽  
Annular Ring ◽  
Low Volume

scholarly journals A Novel Concentric Annular-Ring Slot Dual-Band Circularly Polarized Microstrip Antenna

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Yong Cheng ◽  
Hui Liu
Keyword(s):  
Microstrip Antenna ◽  
Simple Structure ◽  
Dual Band ◽  
Circularly Polarized ◽  
Annular Ring ◽  
Ism Band ◽  
Annular Slot ◽  
Circularly Polarized Radiation ◽  
Polarized Radiation

A simple structure concentric annular-ring slot dual-band circularly polarized (CP) microstrip antenna operating at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed in this paper. The antenna achieves dual-band operation by digging two concentric annular-ring slots on the ground. And on the angular positions with 45 degrees inclined of each annular slot, two bent structures are loaded to generate circularly polarized radiation. The radiation of this antenna is bidirectional, and the directions of rotation are opposite. The measured results of the annular-ring slot microstrip antenna show good performance of dual-band circularly polarized characteristics.

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