Wideband High-Selectivity SIW Filtering Antenna with Controllable Radiation Nulls

被引:0
作者
Wang Z. [1 ,2 ]
Liu X. [2 ]
Liu H. [2 ]
Fang S. [2 ]
机构
[1] Liaoning Key Laboratory of Radio Frequency and Big Data for Intelligent Applications, Liaoning Technical University, Liaoning, Huludao
[2] School of Information Science and Technology, Dalian Maritime University, Liaoning116026, Dalian
来源
Journal of Microwaves, Optoelectronics and Electromagnetic Applications | 2024年 / 23卷 / 01期
基金
中国国家自然科学基金;
关键词
controllable radiation null; filtering antenna; high selectivity; substrate integrated waveguide;
D O I
10.1590/2179-10742024v23i1276239
中图分类号
学科分类号
摘要
—A novel wideband high-selectivity substrate-integrated-waveguide (SIW) filtering antenna with controllable radiation nulls is proposed. This antenna is composed of a two-layered SIW resonator, two radiating slots on the top layer, and two coupling slots on the middle layer. A vertical SMA connector is located at the bottom and feeds two SIW cavities simultaneously. By adjusting the parameters of these slots, three radiation nulls will be achieved, and two radiation nulls can be easily controlled. For demonstration, one prototype of the filtering antenna is fabricated and measured. Measurement results show that the fractional bandwidth for |S11| < −10 dB is 8.9% (3.86–4.23 GHz), the gain is 6.08 dBi at center frequency 4.05 GHz, three radiation nulls are achieved at 3.7 GHz, 4.3 GHz, and 5.19 GHz, respectively. The out-of-band skirt selectivities of two sidebands are 150 and 332 dB/GHz, respectively. © 2024 SBMO/SBMag.
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  • [1] Qian J. F., Chen F. C., Chu Q. X., Xue Q., Lancaster M. J., A novel electric and magnetic gap-coupled broadband patch antenna with improved selectivity and its application in MIMO system, IEEE Trans. Antennas Propag, 66, 10, pp. 5625-5629, (2018)
  • [2] Zhang B., Xue Q., Filtering antenna with high selectivity using multiple coupling paths from source/load to resonators, IEEE Trans. Antennas Propag, 66, 8, pp. 4320-4325, (2018)
  • [3] Yang W., Chen S., Xue Q., Che W., Shen G., Feng W., Novel filtering method based on metasurface antenna and its application for wideband high-gain filtering antenna with low profile, IEEE Trans. Antennas Propag, 67, 3, pp. 1535-1544, (2019)
  • [4] Pan Y. M., Hu P. F., Zhang X. Y., Zheng S. Y., A low-profile high-gain and wideband filtering antenna with metasurface, IEEE Trans. Antennas Propag, 64, 5, pp. 2010-2016, (2016)
  • [5] Chen F. C., Chen J. F., Chu Q. X., Lancaster M. J., X-band waveguide filtering antenna array with nonuniform feed structure, IEEE Trans. Microw. Theory Techn, 65, 12, pp. 4843-4850, (2017)
  • [6] Liu Y. T., Leung K. W., Ren J., Sun Y. X., Linearly and circularly polarized filtering dielectric resonator antennas, IEEE Trans. Antennas Propag, 67, 6, pp. 3629-3640, (2019)
  • [7] Yusuf Y., Cheng H., Gong X., A seamless integration of 3-D vertical filters with highly efficient slot antennas, IEEE Trans. Antennas Propag, 59, 11, pp. 4016-4022, (2011)
  • [8] Li P. K., You C. J., Yu H. F., Li X., Yang Y. W., Deng J. H., Codesigned high-efficiency single-layered substrate integrated waveguide filtering antenna with a controllable radiation null, IEEE Antennas Wireless Propag. Lett, 17, 2, pp. 295-298, (2018)
  • [9] Lovato R., Gong X., A third-order SIW-integrated filter/antenna using two resonant cavities, IEEE Antennas Wireless Propag. Lett, 17, 3, pp. 505-508, (2018)
  • [10] Hu K. Z., Tang M. C., Li D., Wang Y., Li M., Design of compact, single-layered substrate integrated waveguide filtenna with parasitic patch, IEEE Trans. Antennas Propag, 68, 2, pp. 1134-1139, (2020)