A Synthesis Method of Hybrid Reflector Antenna for Satellite Communications

Jianjun LI; Pengfei YIN; Xianbin ZHAO

doi:10.11999/JEIT190564

Volume 42 Issue 11

Nov. 2020

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Article Navigation > Journal of Electronics & Information Technology > 2020 > 42(11): 2621-2628

Jianjun LI, Pengfei YIN, Xianbin ZHAO. A Synthesis Method of Hybrid Reflector Antenna for Satellite Communications[J]. Journal of Electronics & Information Technology, 2020, 42(11): 2621-2628. doi: 10.11999/JEIT190564

Citation:

Jianjun LI, Pengfei YIN, Xianbin ZHAO. A Synthesis Method of Hybrid Reflector Antenna for Satellite Communications[J]. Journal of Electronics & Information Technology, 2020, 42(11): 2621-2628. doi: 10.11999/JEIT190564

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A Synthesis Method of Hybrid Reflector Antenna for Satellite Communications

doi: 10.11999/JEIT190564

Jianjun LI^{1, 2
,
,},
Pengfei YIN^{1, 2},
Xianbin ZHAO³

1.
The 39th Institute of China Electronics Technology Group Corporation, Xi’ an 710065, China
2.
Shanxi Key Laboratory of Antenna and Control Technology, Xi’an 710065, China
3.
College Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, China

Received Date: 2019-07-26
Rev Recd Date: 2020-09-14

Available Online: 2020-09-22

Publish Date: 2020-11-16

Abstract

Abstract

A hybrid reflector antenna is presented to generate a contoured beam over service area, an un-scanned and a scanned pencil beam from two shaped reflectors and three feeds, simultaneously. The shaped main reflector is shared by three beams, and the antenna is equivalent to two single-reflector antennas with single-feed for each beam and a pair of dual offset Gregorian shaped reflector antennas, and generating the contoured, un-scanned and scanned pencil beam, respectively. The proposed method is successfully applied to a 1.2 m hybrid reflector antenna. Simulations and experimentations of each beam has been performed. The Edge of Coverage(EoC) directivity over service area is 27.5 dBi for contoured beam in Tx and Rx working frequency of Ku-band, and the un-scanned pencil beam has a aperture efficiency higher than 70% in Tx and Rx working frequency of C-band. Meanwhile, the scanned pencil beam inside and outside the service area is realized by the lateral defocus of the sub-reflector and the corresponding feed in Tx and Rx working frequency of Ka-band. Simulation results show that the hybrid reflector antenna can realize C/Ku/Ka-band communication tasks simultaneously.
- Hybrid antenna,
- Satellite communications,
- Contoured beam,
- Pencil beam,
- C/Ku/Ka-band

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References(19)

References

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