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Proceedings Paper

Broadband suspended dual-feed microstrip antenna with feed network
Author(s): Sudhabindu Ray; Girish Kumar
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Paper Abstract

The bandwidth (BW) of a rectangular microstrip antenna (RMSA) with a single feed is usually small. Various techniques can be used to increase the BW of RMSA. Broad BW can be achieved with dual feed RMSA, when it is fed with same magnitude and 180° phase difference at its two ports. The main problem in dual feed antenna with equal and opposite phase is to design its feed network. In this paper, a feed network consisting of two branch line couplers and a ratrace coupler has been proposed. To improve the network loss due to the dissipation of nearly 3 dB power in the terminating load, an array of two dual feed antennas is also proposed.

Paper Details

Date Published: 7 April 2004
PDF: 4 pages
Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); doi: 10.1117/12.560674
Show Author Affiliations
Sudhabindu Ray, Indian Institute of Technology/Bombay (India)
Girish Kumar, Indian Institute of Technology/Bombay (India)

Published in SPIE Proceedings Vol. 5445:
Microwave and Optical Technology 2003
Jaromir Pistora; Kamil Postava; Miroslav Hrabovsky; Banmali S. Rawat, Editor(s)

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