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Shorted annular patch antennas for multipath rejection in GPS‐based attitude determination systems
Author(s) -
Boccia Luigi,
Amendola Giandomenico,
Di Massa Giuseppe,
Giulicchi Luisella
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20010105)28:1<47::aid-mop14>3.0.co;2-3
Subject(s) - global positioning system , multipath propagation , antenna (radio) , enhanced data rates for gsm evolution , microwave , computer science , electrical engineering , electronic engineering , engineering , telecommunications , channel (broadcasting)
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.