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A compact single layer branch-line coupler for ultra-wideband (UWB) applications.

Authors :
Velan, Sangeetha
Kanagasabai, Malathi
Source :
International Journal of Microwave & Wireless Technologies; Apr2017, Vol. 9 Issue 3, p505-508, 4p
Publication Year :
2017

Abstract

This paper presents the design of a compact, planar, single layer, tri-section ultra-wideband (UWB) branch-line (BL) coupler. The prototype offers 10 dB return loss characteristics from 3.1 to 13.7 GHz. Over a major portion of the band, phase imbalance of ±10° is achieved. The method of deploying multi stage impedance feed has been used to achieve improved bandwidth. To enhance the power output through the coupled port throughout the operating band, ring shaped slots have been introduced in the ground plane beneath the series arms. The performance of the fabricated prototype has also been validated experimentally. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
17590787
Volume :
9
Issue :
3
Database :
Complementary Index
Journal :
International Journal of Microwave & Wireless Technologies
Publication Type :
Academic Journal
Accession number :
121550328
Full Text :
https://doi.org/10.1017/S1759078716000416