volume | PIER Journals

Abstract

This paper presents a new type of vertically stacked substrate integrated waveguide (SIW) filtering antenna. It is composed of an SIW bandpass filtering circuit and an antipodal linearly tapered slot antenna (ALTSA). The filtering circuit consists of two vertically stacked SIW cavity resonators which are coupled with each other by etching slot on the common metal layer. By introducing electric and magnetic mixed coupling structures, close-to-passband transmission zeros can be realized and flexibly adjustable. Due to the partially vertically stacked structure, the proposed filtering antenna also shows a compact physical size. For validation, two vertically stacked SIW filtering antennas operating at 30 GHz with transmission zero at the upper or lower side of the passband are designed, fabricated, and measured. Good agreement is observed between the measured and simulated results.

1. Chuang, C.-T. and S.-J. Chung, "Synthesis and design of a new printed filtering antenna," IEEE Trans. Antennas Propag., Vol. 59, No. 3, 1036-1042, 2011.
doi:10.1109/TAP.2010.2103001 Google Scholar

2. Lin, C.-K. and S.-J. Chung, "A compact filtering microstrip antenna with quasi-elliptic broadside antenna gain response," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 381-384, 2011. Google Scholar

3. Dhwaj, K., J. M. Kovitz, H. Tian, L. J. Jiang, and T. Itoh, "Half-mode cavity based planar filtering antenna with controllable transmission zeros," IEEE Antennas Wirel. Propag. Lett., Vol. 17, 833-836, 2018.
doi:10.1109/LAWP.2018.2818058 Google Scholar

4. Hua, C., R. Li, Y. Wang, and Y. Lu, "Dual-polarized filtering antenna with printed jerusalem-cross radiator," IEEE Access, Vol. 6, 9000-9005, 2018.
doi:10.1109/ACCESS.2018.2803790 Google Scholar

5. Lu, Y.-L., Y. Wang, S. Gao, C. Hua, and T. Liu, "Circularly polarized integrated filtering antenna with polarisation reconfigurability," IET Antennas Propag., Vol. 11, No. 15, 2247-2252, 2017.
doi:10.1049/iet-map.2017.0283 Google Scholar

6. Yusuf, Y., Cheng, H., and X. Gong, "A seamless integration of 3-D vertical filters with highly efficient slot antennas," IEEE Trans. Antennas Propag., Vol. 59, No. 11, 4016-4022, 2011.
doi:10.1109/TAP.2011.2164186 Google Scholar

7. Cheng, H., Yusuf, Y., and X. Gong, "Vertically integrated three-pole filter/antennas for array applications," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 278-281, 2011.
doi:10.1109/LAWP.2011.2135833 Google Scholar

8. Shi, J., X. Wu, Z. N. Chen, X. Qing, L. Lin, J. Chen, and Z.-H. Bao, "A compact differential filtering quasi-Yagi antenna with high frequency selectivity and low cross-polarization levels," IEEE Antennas Wirel. Propag. Lett., Vol. 14, 1573-1576, 2015.
doi:10.1109/LAWP.2015.2413054 Google Scholar

9. Hua, C., X. Wu, N. Yang, and W. Wu, "Air-filled parallel-plate cylindrical modified Luneberg lens antenna for multiple-beam scanning at millimeter-wave frequencies," IEEE Trans. Microw. Theory Techn., Vol. 61, No. 1, 436-443, 2013.
doi:10.1109/TMTT.2012.2227780 Google Scholar

10. Chu, Q.-X. and H. Wang, "A compact open-loop filter with mixed electric and magnetic coupling," IEEE Trans. Microw. Theory Techn., Vol. 56, No. 2, 431-439, 2008.
doi:10.1109/TMTT.2007.914642 Google Scholar

11. Yusuf, Y. and X. Gong, "Co-designed substrate-integrated waveguide filters with patch antennas," IET Antennas Propag.,, Vol. 7, No. 7, 493-501, 2013.
doi:10.1049/iet-map.2012.0431 Google Scholar

Dr. Changzhou Hua

Dr. Xiangyu Jin

Dr. Meng Liu