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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.


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