Design of a Compact Single-Band, Dual-Mode Microstrip Filtering Antenna with a High Suppression Stopband and a Good Band-Edge Selectivity for WiMAX Applications

Thabit, Qabeela; Alkhafaji, Mohammed; Issa, Bayadir

doi:10.30772/qjes.2024.151237.1288

	Design of a Compact Single-Band, Dual-Mode Microstrip Filtering Antenna with a High Suppression Stopband and a Good Band-Edge Selectivity for WiMAX Applications
Al-Qadisiyah Journal for Engineering Sciences
Articles in Press, Accepted Manuscript, Available Online from 12 May 2025 PDF (9.59 M)
Document Type: Research Paper
DOI: 10.30772/qjes.2024.151237.1288
Authors
Qabeela Thabit^* ¹; Mohammed Alkhafaji²; Bayadir Issa³
¹Ministry of Education
²Dep. of Electronic Techniques, Basra Technical Institute, Southern Technical University, Basrah, Iraq
³Engineering Technical College, Southern Technical University, Basrah, Iraq
Abstract
A design of compact filtering antenna which is suitable for modern wireless communication is proposed in this paper. This project is based on the integration of a microstrip monopole patch antenna and a bandpass filter, which has two dual-mode four-sided open-loop resonant circuits and a single feed line. This design involves a couple of square open-loop resonators, which can create a pair of transmission by zeros, and in this method significantly boost the design's selectivity. As a confirmation of the hypothesis, For WiMAX applications, a filtering antenna technique has been explored, which operates in the 5.8 GHz range. by using CST Microwave Studio Suite simulator software Technology. The low-cost FR-4 substrate has been used to fabricate the filtering antenna prototype. According to the filter synthesis approach. In addition to radiating, the monopole patch antenna serves as a final resonator. This design shows good agreement between measured results and simulation results.
Keywords
Filtering; Communication; Monopole; Resonator; Microwave

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