CPW Center-Fed Single-Layer SIW Slot Antenna Array for Automotive Radars

CPW Center-Fed Single-Layer SIW Slot Antenna Array for Automotive Radars
Title:
CPW Center-Fed Single-Layer SIW Slot Antenna Array for Automotive Radars
Other Titles:
IEEE Transactions on Antennas and Propagation
Keywords:
Publication Date:
12 June 2014
Citation:
J. Xu, Z. N. Chen and X. Qing, "CPW Center-Fed Single-Layer SIW Slot Antenna Array for Automotive Radars," in IEEE Transactions on Antennas and Propagation, vol. 62, no. 9, pp. 4528-4536, Sept. 2014. doi: 10.1109/TAP.2014.2330587
Abstract:
A compact co-planar waveguide (CPW) center-fed substrate-integrated-waveguide (SIW) slot antenna array is proposed to achieve narrow -plane beamwidth and low sidelobe levels for automotive radars such as across-the-road (ATR) radar. The antenna consists of an array of SIW slot elements, a CPW-SIW transition, and a CPW power divider. A new type of CPW-SIW transition is proposed to minimize the blockage aperture of the slot antenna array for suppressing the sidelobe levels of the array. A parallel center feeding configuration is applied to avoid beam squinting. The antenna prototype printed onto a single-layer Rogers 5880 is with 32 4 slot elements and an overall size of 195 mm 40 mm 0.79 mm. Measured results show that the proposed antenna exhibits a gain of 22.8 dBi, an efficiency of 67 , a return loss of 10 dB, a sidelobe level of 21 dB, and a fixed boresight beam of 4.6 in -planes over 24.05–24.25 GHz, suitable for ATR radar.
License type:
PublisherCopyrights
Funding Info:
Description:
(c) 2014 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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