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A Compact, Wideband, Two-Port Substrate-Integrated Waveguide Antenna With a Central, Double-Slotted, Metallic Plate Flanked by Two Paired of Corrugations for Radar Applications

Title
A Compact, Wideband, Two-Port Substrate-Integrated Waveguide Antenna With a Central, Double-Slotted, Metallic Plate Flanked by Two Paired of Corrugations for Radar Applications
Author
최재훈
Keywords
Compact antenna; corrugation; low profile; substrate-integrated waveguide (SIW); wideband
Issue Date
2018-11
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v. 66, no. 11, page. 6376-6381
Abstract
This communication proposes a compact, wideband, two-port substrate-integrated waveguide (SIW) antenna with a central, double-slotted metallic plate flanked by two paired corrugations for radar applications. The proposed antenna uses a two-layer structure, with a slotted metallic plate with corrugations on the top layer and an FR-4 substrate SIW on the bottom layer. The antenna has compact dimensions of 63 mm x 54 mm (2.32 lambda(0) x 1.99 lambda(0)) with a low profile of 7 mm (0.26 lambda(0)). To understand the operating principle of the two-port SIW antenna clearly, modal analysis is performed for single-port SIW antenna. The antenna satisfies a -10 dB reflection coefficient from 10.15 to 11.58 GHz. Although the separation between the two central slots is minimized to 4 mm (0.14 lambda(0)), the isolation performance remains excellent (less than -30 dB). The gain enhancement, with a narrow beam pattern for radar applications, is realized using constructive superposition of in-phase electromagnetic energy from the two slots. In addition, because the antenna has two ports, it also has a beam scanning function from -12 degrees to + 12 degrees in its boresight direction. The experimental and simulated results from the proposed antenna are in good agreement.
URI
https://ieeexplore.ieee.org/document/8425725http://repository.hanyang.ac.kr/handle/20.500.11754/120662
ISSN
0018-926X; 1558-2221
DOI
10.1109/TAP.2018.2863263
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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