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Land vehicle antennas for satellite mobile communicationsAntenna designs applicable to future satellite mobile vehicle communications are examined. Microstrip disk, quadrifilar helix, cylindrical microstrip, and inverted V and U crossed-dipole low gain antennas (3-5 dBic) that provide omnidirectional coverage are described. Diagrams of medium gain antenna (9-12 dBic) concepts are presented; the antennas are classified into three types: (1) electronically steered with digital phase shifters; (2) electronically switched with switchable power divider/combiner; and (3) mechanically steered with motor. The operating characteristics of a conformal antenna with electronic beam steering and a nonconformal design with mechanical steering are evaluated with respect to isolation levels in a multiple satellite system. Vehicle antenna pointing systems and antenna system costs are investigated.
Document ID
19860049211
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Haddad, H. A.
(Ball Aerospace Systems Div. Boulder, CO, United States)
Paschen, D.
(Ball Aerospace Systems Div. Boulder, CO, United States)
Pieper, B. V.
(Ball Corp. Ball Aerospace Systems Div., Boulder, CO, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Communications And Radar
Accession Number
86A33949
Distribution Limits
Public
Copyright
Other

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