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所属单位：电子信息工程学院
发表刊物：IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
关键字：45 degrees linear polarization (LP) millimeter-wave (mm Wave) antenna slot array antenna substrate integrated coaxial line (SICL)
摘要：The growing interest in collision avoidance automotive radar systems in Ka-band necessitates the development of dedicated antenna systems with a 45 degrees inclined linear polarization (LP). In this letter, a 45 degrees inclined LP slot array antenna with the substrate integrated coaxial line (SICL) technique is presented. The proposed antenna is composed of an amplitude-tapering corporate-feed structure and a 5 x 6 inclined-slot array that radiates the 45 degrees linear polarization. In addition, a blind via bridging the inner conductor and the ground of the SICL is adopted beneath each radiating slot for impedance matching. The proposed planar slot array antenna occupies an aperture area of 33.24 mm x 41.13 mm. Measured results indicate that the holistic sidelobe levels in xoz plane and yoz plane are -19.6 and -18.0 dB, and the corresponding cross-polarization levels are -29.5 and -26.8 dB, respectively. A measured peak gain of 17.09 dBi is observed at 34.5 GHz with a -10 dB impedance bandwidth of 910 MHz. The measured results are in good agreement with the theoretical calculations and have demonstrated the validity of the design methodology for the proposed antenna.
ISSN号：1536-1225
是否译文：否
发表时间：2018-02-01
合写作者：赵仁荣,马羽,郭子均,魏香云,邢文强,王玉婷
通讯作者：刘冰