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Symmetric 3dB filtering power divider with equal output power ratio for communication systems

Symmetric 3dB filtering power divider with equal output power ratio for communication systems

Nwajana, Augustine O. ORCID: 0000-0001-6591-5269, Otuka, Richard I., Ebenuwa, Solomon H., Ihianle, Isibor K., Aneke, Sampson O. and Edoh, Aloysius A. (2020) Symmetric 3dB filtering power divider with equal output power ratio for communication systems. In: 2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). IEEE. ISBN 978-1728171166 (doi:https://doi.org/10.1109/ICECCE49384.2020.9179400)

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Abstract

This paper presents a two-way filtering power divider (FPD) with an equal output power ratio of 1:1. This implies that each of the FPD output port would receive 50% of the power at the input port. To achieve miniaturisation, a common square open-loop resonator is used to distribute energy between the two integrated Chebyshev bandpass filters. In addition to distributing energy, the common resonator also contributes one pole to each integrated bandpass filter (BPF), hence, reducing the number of individual resonating elements used in achieving the integrated FPD. To demonstrate the proposed design technique, a prototype FPD centred at 2.6 GHz with a 3 dB fractional bandwidth of 3% is designed, simulated and presented. The circuit model and microstrip layout results of the FPD show good agreement. The microstrip layout simulation responses show that a less than 1.1dB insertion loss and a greater than 16.5dB in-band return loss were achieved. The overall footprint of the integrated FPD is 37mm by 13mm (i.e. 0.32λg x 0.11λg, for λg = guided-wavelength of the 50Ω microstrip line at 2.6 GHz). The integrated FPD reported in this paper shows some promising merits when compared to similar devices recently reported in literature.

Item Type: Conference Proceedings
Title of Proceedings: 2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)
Additional Information: Conference was due to be held in Istanbul, Turkey, from 12-13 June 2020 but was cancelled due to the pandemic.
Uncontrolled Keywords: 3dB, bandpass filter, equal power divider, microstrip, resonator, two-way
Subjects: T Technology > T Technology (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Future Technology and the Internet of Things
Faculty of Engineering & Science > School of Engineering (ENN)
Last Modified: 13 Oct 2020 17:11
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/29520

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