@inproceedings{109aab9d33d14993b652fece6d86ef20,
title = "Grating Lobe Reduced Waveguide Slot Array Antenna",
abstract = "This paper presents the design of a 112-element waveguide slot array antenna with reduced grating lobe characteristics for millimeter-wave applications. A hybrid feeding technique combining a co-phase feed and an alternating-phase feed is applied to achieve the grating lobe reduction of 8.1 dB on the diagonal planes as compared to a conventional alternating-phase-fed waveguide slot array antenna. To realize a tapered aperture distribution, a stepped feed waveguide and offset coupling slot aligned in a line are employed. The experimental results show that the proposed antenna has a -15 dB reflection bandwidth of 3.4\%, an average realized gain of 26.75 dBi, and low peak sidelobes of less than - 26.4 dB at the designed frequency f0.",
keywords = "Alternating-phase feed, co-phase feed, stepped feed waveguide, waveguide slot array",
author = "Son Trinh-Van and Song, \{Sung Chan\} and Seo, \{Seung Hee\} and Hwang, \{Keum Cheol\}",
note = "Publisher Copyright: {\textcopyright} 2018 KIEES.; 2018 International Symposium on Antennas and Propagation, ISAP 2018 ; Conference date: 23-10-2018 Through 26-10-2018",
year = "2018",
month = jul,
day = "2",
language = "English",
series = "ISAP 2018 - 2018 International Symposium on Antennas and Propagation",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "ISAP 2018 - 2018 International Symposium on Antennas and Propagation",
}