A Compact Diplexer Using Coupled π-CRLH Zeroth Resonators

Hassan, Ashraf Y.; Hagag, Mohamed F.; Aziz, Ahmed A. Abdel; Abdalla, Mahmoud A.

doi:10.1080/03772063.2021.1909505

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…In order to ensure the diplexer can independently transmit signals in different transmission bands, a good-performance diplexer should have the characteristics of high isolation, low insertion loss and flexible bandwidth. The most common design method for microstrip diplexers is to add a T-junction extra matching network [7,8,9,10,11,12,13,14,15]. The Tjunction ensures the proper impedance matching of the two BPFs at the respective frequencies and high isolation between the two output ports.…”

Section: Introductionmentioning

confidence: 99%

A wideband and self-packaged D-CRLH diplexer based on substrate-integrated suspended line

Yan

2023

IEICE Electron. Express

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This letter presents a new microstrip diplexer with selfpackaged and wide bandwidth based on substrate-integrated suspended line (SISL) technology. Diplexer consists of D-CRLH filters which include mixed coupling. The electromagnetic interaction is canceled out in the filter, generating two transmission zeros and giving the filter good stopband suppression. Diplexer utilizes a T-junction to make filters work in parallel. Each channel filter can be individually controlled. To validate the proposal, a diplexer operating at 1.88 GHz and 2.64GHz with fractional bandwidth (FBW) of 14.6% and 19.1% is designed and fabricated. A good agreement is perceived between measured and simulated.

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