A Study of Various Beacon Antennas for an Orbiting Sample Container of a Future Mars Sample Return Mission

被引：0
|
作者：
Lin, Hungsheng [1 ]
Darshni, Prya [1 ]
Jamnejad, Vahraz [1 ]
机构：
[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
来源：
2018 IEEE AEROSPACE CONFERENCE | 2018年
基金：
美国国家航空航天局;
关键词：
D O I：
暂无
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
This paper presents some results of a study of various options for a near-omnidirectional low-gain antenna at UHF frequencies, for a Mars Orbiting Sample Return Container (OS). The OS is part of a concept study for a future mission to return samples from Mars. It is a critical component of such a mission which contains the Mars samples. It would be returned by a separate spacecraft to Earth. The OS will be identified and located by the spacecraft for pick-up from orbit by a beacon signal broadcast via a surface antenna. Several antenna designs were considered, but two promising ones are presented here which have good patterns with a better than 2:1 VSWR (Voltage Standing Wave Ratio), but meet different criteria for OS design. One is a patch type antenna and the other a slot type antenna. Some data and test results of a fabricated breadboard antenna as well as discussions are provided.
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页数：5
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