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Gain enhancement of microstrip antennas with overlaying parasitic directorsAn experimental study of gain enhancement in microstrip antennas using identical parasitic patch directors is reported. The results indicate that, with two overlying parasitic directors, the gain of a rectangular microstrip antenna is enhanced from 4.7 dB to 10.6 dB, while the 3 dB beamwidth is reduced from 103 deg to 30 deg for the E-plane and from 70 deg to 35 deg for the H-plane. The three-layer electromagnetically coupled patch antenna exhibits similar antenna characteristics to those of the Yagi array, with over 120 dB gain and with about 1 percent bandwidth.
Document ID
19880061426
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lee, R. Q.
(NASA Lewis Research Center Cleveland, OH, United States)
Lee, K. F.
(Akron, University OH, United States)
Date Acquired
August 13, 2013
Publication Date
May 26, 1988
Publication Information
Publication: Electronics Letters
Volume: 24
ISSN: 0013-5194
Subject Category
Communications And Radar
Accession Number
88A48653
Distribution Limits
Public
Copyright
Other

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