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A Novel Center-Fed SIW Inclined Slot Antenna for Active Phased Array

By Yao Zong, Jun Ding, Chen-Jiang Guo, and Chao Li
Progress In Electromagnetics Research Letters, Vol. 88, 97-104, 2020


In this paper, a center-fed substrate integrated waveguide (SIW) inclined slot array antenna is designed for a one-dimensional active phased array. A novel coaxial-to-SIW transition is employed to realize the central feed for enhancing bandwidth. The antenna prototype printed onto a single-layer Rogers 5870 is composed of 32×16 inclined slots working at Ku-band. As shown in measured result, the bandwidth with return loss < -10 dB is from 16.6 to 17.1 GHz, and the sidelobe levels of arrays are below -24.8 dB at 16.8 GHz in H planes. The measured gain is 31.8 dB at 16.8 GHz with the aperture efficiency of 65%. The active phased array is assembled by an antenna and 32 Tx/Rx modules, and the measured results show that the main lobe can obtain a wide-angle scanning from -45 to 45 degrees in E planes. The antenna array is suitable for low profile small active phased array radars and communication systems that require spatial wide-angle scanning.


Yao Zong, Jun Ding, Chen-Jiang Guo, and Chao Li, "A Novel Center-Fed SIW Inclined Slot Antenna for Active Phased Array," Progress In Electromagnetics Research Letters, Vol. 88, 97-104, 2020.


    1. Prakash, S., S. Dash, and A. Patnaik, "Reconfigurable circular patch THz antenna using graphene stack based SIWtechnique," 2018 IEEE Indian Conference on Antennas and Propogation (InCAP), Hyderabad, India, 2018.

    2. Zhang, A. Q., Z. G. Liu, and W. B. Lu, "A tunable attenuator on graphene-based half-mode substrate integrated waveguide," 2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP), 4, Auckland, New Zealand, 2018.

    3. Giordano, M. C., S. Mastel, and C. Liewald, "Phase-resolved terahertz self-detection near-field microscopy," Opt. Express, Vol. 26, 18423, 2018.

    4. Mitrofanov, O., L. Viti, and E. Dardanis, "Near-field terahertz probes with room-temperature nanodetectors for subwavelength resolution imaging," Sci. Rep., Vol. 7, 44240, 2017.

    5. Viti, L., J. Hu, and D. Coquillat, "Efficient terahertz detection in black-phosphorus nano-transistors with selective and controllable plasma-wave, bolometric and thermoelectric response," Sci. Rep., Vol. 6, 20474, 2016.

    6. Boukhvalov, D., B. G¨urbulak, and S. Duman, "The advent of indium selenide: Synthesis, electronic properties, ambient stability and applications," Nanomaterials, Vol. 7, 372, 2017.

    7. Liu, C., L. Wang, and X. Chen, "Room-temperature high-gain long-wavelength photodetector via optical-electrical controlling of hot carriers in graphene," Adv. Opt. Mater., Vol. 6, 1800836, 2018.

    8. Tang, W., A. Politano, and C. Guo, "Ultra sensitive room-temperature terahertz direct detection based on a bismuth selenide topological insulator," Adv. Funct. Mater., Vol. 28, 1801786, 2018.

    9. Farrall, A. and P. Young, "Integrated waveguide slot antennas," IEEE Electron. Lett., Vol. 407, No. 16, 974-975, 2004.

    10. Bozzi, M., A. Georgiadis, and K. Wu, "Review of substrate-integrated waveguide circuits and antennas," IET Microwaves, Antennas Propagation, Vol. 5, No. 8, 909-920, 2011.

    11. Djerafi, T. and K. Wu, "Corrugated substrate integrated waveguide (SIW) antipodal linearly tapered slot antenna array fed by quasi-triangular power divider," Progress In Electromagnetics Research C, Vol. 26, 139-151, 2012.

    12. Zou, X., C.-M. Tong, and D.-W. Yu, "Y-junction power divider based on substrate integrated waveguide," IEEE Electron. Lett., Vol. 47, No. 25, 1375-1376, 2011.

    13. Taringou, F., J. Bornemann, and K. Wu, "Broadband coplanar waveguide and microstrip low-noise amplifier integrations for K-band SIW applications on low-permittivity substrate," IEEE Trans. Antennas Propag., Vol. 8, 99-103, 2014.

    14. Khan, A. A. and M. K. Mandal, "A compact broadband direct coaxial line to SIW transition," IEEE Microwave Wireless Compon. Lett., Vol. 26, 894-896, 2016.

    15. Park, S.-J., D.-H. Shin, and S.-O. Park, "Low side-lobe substrate-integrated-waveguide antenna array using broadband unequal feeding network for millimeter-wave handset device," IEEE Antennas Wirel. Propag. Lett., Vol. 64, 923-931, 2016.

    16. Xia, L., R. Xu, and B. Yan, "Broadband transition between air-filled waveguide and substrate integrated waveguide," Electron. Lett., Vol. 42, 1403-1405, 2006.

    17. Yang, D., F. F. Gao, and J. Pan, "A single-layer dual-frequency shared-aperture SIW slot antenna array with a small frequency ratio," IEEE Antennas Wirel. Propag. Lett., Vol. 17, 1049-1051, 2018.

    18. Li, Y., W. Hong, G. Hua, J.-X Chen, and K. Wu, "Simulation and experiment on SIW slot array antennas," IEEE Microwave Wireless Compon. Lett., Vol. 14, 446-448, 2004.

    19. Liu, B., et al., "Substrate integrated waveguide (SIW) monopulse slot antenna array," IEEE Trans. Antennas Propag., Vol. 57, No. 1, 275-279, 2009.

    20. Kim, D.-Y. and S. Nam, "Excitation control method for a low sidelobe SIW series slot array antenna with 45 linear polarization," IEEE Trans. Antennas Propag., Vol. 61, No. 11, 5807-5812, 2013.

    21. Ando, M., Y. Tsunemitsu, and M. Zhang, "Reduction of long line effects in single-layer slotted waveguide arrays with an embedded partially corporate feed," IEEE Antennas Wirel. Propag. Lett., Vol. 58, 2275-2280, 2010.

    22. Li, T. and W.-B. Dou, "Millimetre-wave slotted array antenna based on double-layer substrate integrated," IEEE Trans. Antennas Propag., Vol. 9, 882-888, 2015.

    23. Xu, J.-F., Z.-N. Chen, and X.-M. Qing, "CPW center-fed single-layer SIW slot antenna array for automotive radars," IEEE Antennas Wirel. Propag. Lett., Vol. 62, 4528-4535, 2014.

    24. Chen, M. and W.-Q. Che, "Bandwidth enhancement of substrate integrated waveguide (SIW) slot antenna with center-fed techniques," IEEE Antennas Technology (iWAT), 349-351, 2011.

    25. Wen, Y.-Q. and B.-Z. Wang, "Wide-beam SIW-slot antenna for wide-angle scanning phased array," IEEE Antennas Wirel. Propag. Lett., Vol. 15, 1638-1641, 2016.