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Design of Substrate Integrated Waveguide (SIW) Antenna

Hafssa Amer, Mahmood A. K. Abdulsattar. Published in Communications.

Communications on Applied Electronics
Year of Publication: 2018
Publisher: Foundation of Computer Science (FCS), NY, USA
Authors: Hafssa Amer, Mahmood A. K. Abdulsattar

Hafssa Amer and Mahmood A K Abdulsattar. Design of Substrate Integrated Waveguide (SIW) Antenna. Communications on Applied Electronics 7(17):14-20, June 2018. BibTeX

	author = {Hafssa Amer and Mahmood A. K. Abdulsattar},
	title = {Design of Substrate Integrated Waveguide (SIW) Antenna},
	journal = {Communications on Applied Electronics},
	issue_date = {June 2018},
	volume = {7},
	number = {17},
	month = {Jun},
	year = {2018},
	issn = {2394-4714},
	pages = {14-20},
	numpages = {7},
	url = {},
	doi = {10.5120/cae2018652774},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


The cavity-backed slots SIW antenna that suitable with planar devices is designed, simulated, implemented, and measured. The design is about of two forms of a slotted cavity at bottom side, but the microstrip line is fed at top side. The feeding line and the cavity-backed slots can be implemented on a single substrate using standard printed circuit board (PCB) process. The idea is to merge specific slot models on the cavity back side such as lateraled and meandered slots. An SIW antenna is presented, the simulation results show a 6.35 dB gain, 7.3 dB directivity, and -0.9512 dB (80.33 %) radiation efficiency, and the measurements show that the reflection coefficient (S11) at 10.2 GHz is -37.23 dB with a bandwidth of 345 MHZ (3.38 %). The combination of cavity-back slots, planar feeding, and SIW antenna design, leads to light weight, size reduction, easy implementation, and simple integration with planar circuits.


  1. G. Q. Luo, Z. F. Hu, L. X. Dong, and L. L. Sun, “Planar slot antenna backed by substrate integrated waveguide cavity,” IEEE Antennas Wireless Propag. Lett., vol. 7, pp. 236–239, 2008.
  2. D. M. Pozar, “A microstrip antenna aperture coupled to a microstrip line,” Electron. Letters, vol. 21, pp. 49–50, Jan. 1985.
  3. R. Azadegan and K. Sarabandi, “A novel approach for miniaturization of slot antennas,” IEEE Trans. Antennas Propag., vol. 51, no. 3, pp. 421–429, Mar. 2003.
  4. W. Hong, N. Behdad, and K. Sarabandi, “Size reduction of cavitybacked slot antennas,” IEEE Trans. Antennas Propag., vol. 54, no. 5, pp. 1461–1466, May 2006.
  5. F. Xu and K. Wu, “Guided-wave and leakage characteristics of substrate integrated waveguide,” IEEE Trans. Microw. Theory Tech., vol. 53, no. 1, pp. 66–73, Jan. 2005.
  6. L. Yan, W. Hong, G. Hua, J. Chen, K. Wu, and T. Cui, “Simulation and experiment on SIW slot array antennas,” IEEE Microw. Wireless Compon. Lett., vol. 14, no. 9, pp. 446–448, Sep. 2004.
  7. Wu K. 2003] K. Wu, D. Deslandes, and Y. Cassivi, “The substrate integrated circuits-anew concept for high-frequency electronics and optoelectronics,” TELSKIS2003, Nis, Serbia and Montenegro, October 2003.
  8. D. Deslandes, L. Perregrini, P. Arcioni, M. Bressan, K. Wu, and G. Conciauro, “Dispersion characteristics of substrate integrated rectangular waveguide,” IEEE Microwave Wireless Compon. Lett., vol. 12, pp.333–335, Sept. 2002.
  9. C. Calabrese and G. Marroco, “Meandered-slot antennas for sensor-RFID tags,” IEEE Antennas Wireless Propag. Lett., vol. 7, pp. 5–8,2008.
  10. Luo, G.Q., Hu, Z.F., Dong, L.X., and L.L. Sun, “Planar slot antenna backed by substrate integrated waveguide cavity”, IEEE Antennas Wirel. Propag. Lett., 2008, 7, pp. 236–239.
  11. Luo, G.Q., and L.L. Sun, “A reconfigurable cavity backed antenna for circular polarization diversity”, Microw. Opt. Technol. Lett., 2009, 51, (6), pp. 1491–1493
  12. Hiroshi, U., Takeshi, T., and M. Fujii, “Development of a laminated waveguide”, IEEE Trans. Microw. Theory Techn., 1998, 46, (12), pp. 2438–2443.
  13. S. Mukherjee, A. Biswas, and K. V. Srivastava, " Bandwidth enhancement of Substrate Integrated Waveguide Cavity backed slot antenna by offset feeding technique", IEEE Applied Electromagnetics. Conf. (AEMC), 2013, pp- 1-2.


Cavity-backed, a slot antenna, substrate integrated waveguide (SIW).