Small Single Band Circular Polarization and Dual Band Circular Patch Antenna

2007 ◽  
Author(s):  
Tzong-Chee Yo ◽  
Chien-Ming Lee ◽  
Ching-Hsing Luo
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Single Band ◽  
Dual Band ◽  
Circular Patch ◽  
Circular Patch Antenna

scholarly journals Dual- Band Antenna for Wi-Fi and 5G Applications

2019 ◽  
Vol 9 (1S5) ◽  
pp. 130-131
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Band Width ◽  
Dual Band ◽  
Circular Patch ◽  
Dual Band Antenna ◽  
Circular Patch Antenna

In this communication, a circular patch antenna is reported for dual- band operation based on VIAs. Initially the patch is resonating at single band with Linear Polarization (LP), and the Circular Polarization (CP) is obtained by inserting semi circular cuts at the edges of circular patch. The second band is achieved by loading the vertical metallic VIAs along the circumference of the patch antenna. The reported antenna is working at 2.4 GHz (Wi-Fi) and 3.5 GHz (5G) bands with Return Loss Band Width (RLBW) of 4.83% and 10.37% respectively. The Axial Ratio (AR) bandwidth at 5G band is 2.38% (3.31- 3.39 GHz)

scholarly journals A New Diminutive Octa Polarization Reconfigurable Circular Patch Antenna

2020 ◽  
Vol 9 (6) ◽  
pp. 775-779
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Prototype Model ◽  
Rf Switch ◽  
Left Hand ◽  
Circular Patch ◽  
Compact Size ◽  
Circular Patch Antenna ◽  
Polarization States ◽  
The Right

This proposes a new diminutive octa polarization reconfigurable circular patch antenna design. This new antenna can operate in eight different polarizing states (6 different angles of linear polarization and 2 circular polarization states) with the help of a reconfigurable probe feed network. The antenna comprises of a circular layer of radiation with four equally spaced slits at the boundary of the circular patch to obtain size reduction. The bias voltages of six pairs of PIN diodes are interval between each state. A 3 dB hybrid coupler and a RF switch are used to produce reconfiguration between circular polarization states of the right and left hand. The proposed antenna was designed using CST microwave studio, fabricated as a prototype model and tested which produces desired values for various parameters of antenna including compact size. The designed antenna operates within 2.4-2.5 GHz frequencies suitable for wireless applications

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