77-GHz Dual-Layer Transmit-Array for Automotive Radar Applications

77-GHz Dual-Layer Transmit-Array for Automotive Radar Applications
Title:
77-GHz Dual-Layer Transmit-Array for Automotive Radar Applications
Other Titles:
IEEE Transactions on Antennas and Propagation
DOI:
10.1109/TAP.2015.2419691
Keywords:
Publication Date:
03 April 2015
Citation:
S. B. Yeap, X. Qing and Z. N. Chen, "77-GHz Dual-Layer Transmit-Array for Automotive Radar Applications," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 6, pp. 2833-2837, June 2015. doi: 10.1109/TAP.2015.2419691
Abstract:
A 77-GHz transmit-array on dual-layer printed circuit board (PCB) is proposed for automotive radar applications. Coplanar patch unit-cells are etched on opposite sides of the PCB and connected by through-via. The unit-cells are arranged in concentric rings to form the transmit-array for 1-bit in-phase transmission. When combined with four-substrate-integrated waveguide (SIW) slot antennas as the primary feeds, the transmit-array is able to generate four beams with a specific coverage of ±15°. The simulated and measured results of the antenna prototype at 76.5 GHz agree well, with gain greater than 18.5 dBi. The coplanar structure significantly simplifies the transmit-array design and eases the fabrication, in particular, at millimeter-wave frequencies.
License type:
PublisherCopyrights
Funding Info:
Description:
(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
0018-926X
1558-2221
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