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Broadband millimeter‐wave planar antenna array with a waveguide and microstrip‐feed network
Author(s) -
Oh SoonSoo,
Heo John,
Kim DongHyeon,
Lee JaeWook,
Song MyungSun,
Kim YoungSik
Publication year - 2004
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/mop.20279
Subject(s) - broadband , microstrip antenna , microstrip , planar , microwave , bandwidth (computing) , extremely high frequency , optics , slot antenna , broadside , patch antenna , planar array , beam waveguide antenna , coaxial antenna , physics , electrical engineering , antenna (radio) , telecommunications , engineering , computer science , computer graphics (images)
In this paper, we describe a fixed‐beam broadband planar antenna array at millimeter‐wave frequencies. The antenna is fed by waveguide‐feed and microstrip‐feed networks. In order to ensure fixed beams and a broad bandwidth, a subarray concept is introduced. For efficient coupling, a novel waveguide‐to‐slot transition consisting of a slot pair and a narrow conductive bar is proposed. Simulated and measured bandwidth is found to be more than 7.1% from 40.5–43.5 GHz. The main beam directions are broadside over all frequencies. The maximum measured antenna gain is 30.2 dBi at 42.0 GHz. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 283–287, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20279
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