Shorted annular patch antennas for multipath rejection in GPS-based attitude determination systems.

Autor: Boccia, Luigi, Amendola, Giandomenico, Di Massa, Giuseppe, Giulicchi, Luisella
Předmět:
Zdroj: Microwave & Optical Technology Letters; 1/5/2001, Vol. 28 Issue 1, p47-51, 5p, 2 Diagrams, 1 Chart, 3 Graphs
Abstrakt: In the past years, ESA has been considering the use of the Global Positioning System (GPS) as a medium-accuracy attitude sensor for low-earth-orbit missions. This paper describes the design of a compact GPS antenna with improved multipath rejection to counteract the effects of the spurious reflections. In particular, a shorted annular patch that is a variant of the classical annular patch and has its inner edge shorted by a cylindrical conducting wall is proposed. It is shown that the radiation characteristics of the antenna offer the possibility to fulfill the multipath rejection radiation requirements without using an array solution. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 47–51, 2001. [ABSTRACT FROM AUTHOR]
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