Title :
Gain enhancement of waveguide slot antennas using quasi-TEM mode in rectangular waveguide
Author :
Mohammadian, Sajjad ; Forooraghi, K. ; Atlasbaf, Zahra
Author_Institution :
Tarbiat Modares Univ., Tehran, Iran
Abstract :
In this paper, First the structure of a rectangular waveguide with a longitudinal slot is presented to show the quasi-TEM wave with uniform distribution in the waveguide width. This Quasi-TEM wave improves the aperture field illumination of the slot and enhances the efficiency in this kind of antennas. Finally, by simulation a slot antenna is excited by a quasi-TEM wave. The results indicate the high efficiency of this antenna.
Keywords :
aperture antennas; coplanar waveguides; electric fields; rectangular waveguides; slot antennas; CPW waveguide; aperture field illumination improvement; efficiency enhancement; gain enhancement; longitudinal slot; quasi-TEM mode; quasi-TEM wave; rectangular waveguide structure; uniform distribution; waveguide slot antennas; waveguide width; Coplanar waveguides; Electric fields; Leaky wave antennas; Rectangular waveguides; Slot antennas; Strips; Gain enhancement; quasi-TEM wave; rectangular waveguide; slot antenna;
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
DOI :
10.1109/IranianCEE.2013.6599590
