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New compact wide-band branch-line couplers
Conference proceeding

New compact wide-band branch-line couplers

Bader M Alqahtani, Abdel Fattah Sheta, Majeed A Alkanhal and IEEE
2009 European Microwave Conference (EuMC), pp.1159-1162
09/2009
DOI: https://doi.org/10.23919/EUMC.2009.5295993

Abstract

Bandwidth Circuit simulation Couplers Dielectric measurements Dielectric substrates Educational institutions Impedance Permittivity measurement Transmission line matrix methods Wideband
In this paper, a new compact wide-band branch-line couplers are presented. Significant size reduction is achieved using the proposed configurations. Two 3-dB wide-band couplers designed and simulated at 2 GHz. More than 50% areas saving and larger than 50% fractional bandwidth have been achieved. The wide-band couplers were fabricated on RF-Duroid dielectric substrate with permittivity of 2.2 and 1.57 mm thickness. The measured results show good agreement with the simulated one.

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