A diplexer with direct coupled resonant junction

Ogbodo, Eugene, Ngobigha, Felix, Obadiah Ali, Nyangwarimam and Atuba, Sunday (2021) A diplexer with direct coupled resonant junction. Microwave and Optical Technology Letters. ISSN 1098-2760

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Abstract

Conventionally, diplexers are designed by connecting two filters of different frequencies using a transmission T‐line junction which acts as a distribution network serving the individual filters. Here, a novel diplexer has been proposed and designed to utilize a directly coupled resonator as the distribution network. The directly coupled resonator is designed using two square open‐loop resonators of the same resonant frequency of 1.95 GHz. Coupling of the two resonators is achieved using a λ/4 transmission line to directly couple them. This process made the resonator pair to possess a dual‐mode resonator function, resonating at 1.85 and 2.05 GHz. Two bandpass filters are then designed in the corresponding modes of the resonator pair with 5% fractional bandwidth and coupled accordingly. This technique allowed the resonator pair to contribute to the resonant poles of the diplexer while functioning as the distribution network.

Item Type: Article
Uncontrolled Keywords: electrical and electronic engineering, atomic and molecular physics, and optics, electronic, optical and magnetic materials, condensed matter physics
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Health & Science > Department of Science & Technology
SWORD Depositor: Pub Router
Depositing User: Pub Router
Date Deposited: 28 Jan 2021 10:48
Last Modified: 29 Jan 2021 11:36
URI: http://oars.uos.ac.uk/id/eprint/1590

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