Microstrip dual-band bandpass filter using U-shaped resonators

Eugene A. Ogbodo; Yi Wang; Kenneth S.K. Yeo

doi:10.2528/PIERL15072303

Microstrip dual-band bandpass filter using U-shaped resonators

Eugene A. Ogbodo, Yi Wang, Kenneth S.K. Yeo

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Coupled resonators are widely used in the design of filters with dual-passband responses. In this paper, we present a dual-band bandpass filter using only couplings between adjacent resonators without cross-couplings. The dual-band bandpass filter with centre frequencies of 1747 MHz and 1879 MHz respectively is designed and fabricated using microstrip U-shaped resonators. Using the coupled resonator pair as a dual-band cluster, a miniaturised structure is achieved as compared to the conventional topology. The measured responses agree closely with the simulations.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Progress in Electromagnetics Research Letters
Volume	59
DOIs	https://doi.org/10.2528/PIERL15072303
Publication status	Published - 2016

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AB - Coupled resonators are widely used in the design of filters with dual-passband responses. In this paper, we present a dual-band bandpass filter using only couplings between adjacent resonators without cross-couplings. The dual-band bandpass filter with centre frequencies of 1747 MHz and 1879 MHz respectively is designed and fabricated using microstrip U-shaped resonators. Using the coupled resonator pair as a dual-band cluster, a miniaturised structure is achieved as compared to the conventional topology. The measured responses agree closely with the simulations.

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Microstrip dual-band bandpass filter using U-shaped resonators

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