[1] YU Y R, HONG W, JIANG Z H, et al. E-band low-profile, wideband 45° linearly polarized slot-loaded patch and its array for millimeter-wave communications. IEEE Transactions on Antennas and Propagation, 2018, 66(8): 4364 - 4369.

[2] LEE J I, LEE J H, LEE S H, et al. Low sidelobe design of microstrip comb-line array antenna using deformed radiating elements in the millimeter-wave band. IEEE Transactions on Antennas and Propagation, 2022, 70(10): 9930 - 9935.

[3] CHENG S, YOUSEF H, KRATZ H. 79 GHz slot antennas based on substrate integrated waveguides (SIW) in a flexible printed circuit board. IEEE Transactions on Antennas and Propagation, 2009, 57(1): 64 - 71.

[4] BAUER F, WANG X, MENZEL W, et al. A 79-GHz radar sensor in LTCC technology using grid array antennas. IEEE Transactions on Microwave Theory and Techniques, 2013, 61(6): 2514 - 2521.

[ 5] BAUER F, MENZEL W. A 79-GHz resonant laminated waveguide slotted array antenna using novel shaped slots in LTCC. IEEE Antennas and Wireless Propagation Letters, 2013, 12: 296 - 299.

[6] YANG B Q, YU Z Q, LAN J, et al. Digital beamforming-based massive MIMO transceiver for 5G millimeter-wave communications. IEEE Transactions on Microwave Theory and Techniques, 2018, 66(7): 3403 - 3418.

[7] AL-ALEM Y, KISHK A A. Efficient millimeter-wave antenna based on the exploitation of microstrip line discontinuity radiation. IEEE Transactions on Antennas and Propagation, 2018, 66 ( 6 ): 2844 - 2852.

[8] GHOSH S, SEN D. An inclusive survey on array antenna design for millimeter-wave communications. IEEE Access, 2019, 7: 83137 - 83161.

[9] SONG J, SUN X, WU S. Design of 77 GHz narrow beamwidth antenna for UAVs obstacle avoidance radar. Proceedings of the 2018 International Conference on Microwave and Millimeter Wave Technology ( ICMMT’18), 2018, May 7 - 11, Chengdu, China. Piscataway, NJ, USA: IEEE, 2018: 3p.

[10] LI M M, ZHANG Y W, PENG H L, et al. Low side-lobe and high gain planar antenna array for 77 GHz automotive radars. Proceedings of the 2021 International Conference on Microwave and Millimeter Wave Technology ( ICMMT’21), 2021, May 23 - 26, Nanjing, China. Piscataway, NJ, USA: IEEE, 2021: 3p.

[11] RUSCH C, BEER S, ZWICK T. LTCC endfire antenna with housingfor77-GHzshort-distance radar sensors. IEEE Antennas and Wireless Propagation Letters, 2012, 11: 998 - 1001.

[12] WANG X. STELZER A. A 79-GHz LTCC patch array antenna using a laminated waveguide-based vertical parallel feed. IEEE Antennas and Wireless Propagation Letters, 2013, 12: 987 - 990.

[13] KHAN O, MEYER J, BAUR K, et al. Hybrid thin film antenna for automotive radar at 79 GHz. IEEE Transactions on Antennas and Propagation, 2017, 65(10): 5076 - 5085.

[14] XU J, HONG W, ZHANG H, et al. An array antenna for both long- and medium-range 77 GHz automotive radar applications. IEEE Transactions on Antennas and Propagation, 2017, 65(12): 7207 - 7216.

[15] TENG X H, LUO Y, YAN N N, et al. A cavity-backed antenna using SISL technology for 77 GHz band application. IEEE Transactions on Antennas and Propagation, 2022, 70 ( 5 ): 3840 - 3845.

[ 16] TENG X H, MA K X, YAN N M, et al. A low-cost antenna using SISL technology with suppressed sidelobe level for 77 GHz automotive radar. IEEE Antennas and Wireless Propagation Letters, 2022, 21(9): 1832 - 1836.