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Author Jae Hee Kim ♦ Wee Sang Park
Sponsorship IEEE Antennas and Propagation Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2002
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Microstrip antenna arrays ♦ Antenna feeds ♦ Microstrip antennas ♦ Antenna measurements ♦ Antenna arrays ♦ Delay lines ♦ Prototypes ♦ Frequency measurement ♦ Antenna radiation patterns ♦ Azimuth ♦ feed network ♦ 2 $\,\times\,$2 array antenna ♦ 90$^{\circ}$ hybrid ♦ crossover
Abstract We propose a switched feed network for a 2 times 2 array antenna to form a sectoral conical beam. The proposed feed network, which is a symmetrical structure, consists of four 90deg hybrids, a crossover, and four 90deg delay lines. The prototype feed network and a 2 times 2 array antenna were fabricated on microstrip structures. The performance of the feed network was verified by measuring the radiation patterns at the center frequency of 2.57 GHz. The maximum radiation was measured at the 45deg elevation and at the 45deg, 135deg, 225deg, and 315deg azimuth angles, depending on the choice of the input port of the feed network.
Description Author affiliation :: Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Pohang, South Korea
ISSN 15361225
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-01-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 8
Size (in Bytes) 719.66 kB
Page Count 4
Starting Page 712
Ending Page 715

Source: IEEE Xplore Digital Library