Vol. 44

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2013-11-19

Broadband and Small-Size 3-dB Ring Coupler

By Stefan Simion and Giancarlo Bartolucci
Progress In Electromagnetics Research Letters, Vol. 44, 23-28, 2014
doi:10.2528/PIERL13101001

Abstract

A topology for a 3-dB broadband and small-size ring coupler is proposed. It consists of fullydistributed Composite Right-/Left-Handed phase shifters and a Lange coupler. For the fabricated coupler, the frequency bandwidth is one octave, centered on 1.5 GHz, while the footprint area is 25% compared to the conventional ring coupler topology. The experimental results are in good agreement with the expected ones, obtained by electromagnetic simulation.

Citation


Stefan Simion and Giancarlo Bartolucci, "Broadband and Small-Size 3-dB Ring Coupler," Progress In Electromagnetics Research Letters, Vol. 44, 23-28, 2014.
doi:10.2528/PIERL13101001
http://jpier.org/PIERL/pier.php?paper=13101001

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