A simple circularly polarized beam-switching patch array antenna for satellite communication

2002 ◽  
Author(s):  
D. Delaune ◽  
K. Ito ◽  
I. Ida ◽  
H. Yoshimura
Keyword(s):  
Satellite Communication ◽  
Array Antenna ◽  
Circularly Polarized ◽  
Polarized Beam ◽  
Beam Switching

scholarly journals Design of a Self-Phased Quadrifilar Helix Antenna for Satellite Communication

2017 ◽  
Vol 7 (6) ◽  
pp. 2273-2276
Author(s):  
R. Narimani ◽  
L. Farhoudi
Keyword(s):  
Satellite Communication ◽  
Satellite Communications ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Wide Beam ◽  
Circularly Polarized ◽  
Design And Implementation ◽  
Polarized Beam ◽  
And Control ◽  
Leo Satellite

The objective of this study is the design and implementation of a Quadrifilar Helix Antenna (QHA) for telemetry, tracking and control of a Low Earth Orbit (LEO) satellite. Because of its cardioid-shaped circularly polarized beam, QHA can satisfy requirements of satellite communications completely. In this paper, a variation of QHA referred to as “self-phased QHA” with a single feeding circuit, has been proposed to reduce implementation complexity. The designed antenna has been analyzed and the experimental results show that the radiation pattern provides good wide-beam in the desired frequency while the antenna’s bandwidth is around 200MHz when VSWR is less than 2.

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