scholarly journals DEVELOPMENT OF A LOW PROFILE WIDE-BANDWIDTH CIRCULARLY POLARIZED MICROSTRIP ANTENNA FOR C-BAND AIRBORNE CP-SAR SENSOR

2018 ◽  
Vol 81 ◽  
pp. 77-88 ◽  
Author(s):  
Cahya Edi Santosa ◽  
Josaphat Tetuko Sri Sumantyo ◽  
Katia Urata ◽  
Ming Yam Chua ◽  
Koichi Ito ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Wide Bandwidth ◽  
Circularly Polarized ◽  
Low Profile

Wide aperture circularly polarized antenna for small telemetry satellites

2012 ◽  
Vol 4 (6) ◽  
pp. 623-628
Author(s):  
M. Koubeissi ◽  
E. Arnaud ◽  
M. Thevenot ◽  
T. Monediere ◽  
E. Peragin ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Axial Ratio ◽  
Antenna System ◽  
High Quality ◽  
Wide Bandwidth ◽  
Circularly Polarized ◽  
Experimental Performance ◽  
Small Satellites ◽  
Low Profile ◽  
Space Angle

This paper focuses on the design of a telemetry antenna system intended for small satellites. It provides an axial ratio (AR) lower than 3 dB over ±60° conical space angle with over 20% of bandwidth. The antenna consists of a multilayer patch element fed by a wideband feeding circuit. The latter is an appropriate adjustment of 90° hybrid couplers and 180° ring coupler. We show that this design provides high-quality circular polarization properties for agile small satellites without having to suspend their mission to download their data and also without sacrificing the antenna low profile and wide bandwidth. The antenna is fabricated and the experimental performance is presented and followed by a discussion.

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