Miniaturized Microstrip Diplexer Based on FR4 Substrate for Wireless Communications

Authors

  • Hussein Ali Hussein Department of Electrical Engineering, University of Technology, Iraq
  • Yaqeen Sabah Mezaal Medical Instrumentation Engineering Department, Al-Esraa University College, Iraq
  • Ban M. Alameri Department of Electrical Engineering, Faculty of Engineering, Mustansiriyah University, Iraq

DOI:

https://doi.org/10.5755/j02.eie.28942

Keywords:

Diplexer, Microstrip, FR4 material, Bandpass filter, SIR, UIR, Narrow band response, Negative group delay, Electronic design automation (EDA)

Abstract

In this paper, the miniaturized microstrip diplexer has been designed for dual channels based on FR4 substrate material. It consists of two bandpass filters (BPFs) functioning under dissimilar frequency bands coupled with a unified junction. Every BPF has been created by a meandered line resonator, step impedance resonator, uniform impedance resonator, and input/output feed lines. The AWR electromagnetic simulator has been used for characterizing the frequency responses of the projected diplexer. Noble scattering parameter results with narrow band responses and negative group delay values are obtained for the proposed diplexer. The microstrip diplexer has an interesting band isolation between the two filters around 31 dB. The device has been successfully fabricated and verified with the simulations.

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Published

2021-10-27

How to Cite

Hussein, H. A. ., Mezaal, Y. S., & Alameri, B. M. . (2021). Miniaturized Microstrip Diplexer Based on FR4 Substrate for Wireless Communications. Elektronika Ir Elektrotechnika, 27(5), 34-40. https://doi.org/10.5755/j02.eie.28942

Issue

Vol. 27 No. 5 (2021)

Section

HIGH FREQUENCY TECHNOLOGY, MICROWAVES

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