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Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure

Al-Yasir, Yasir I. A.; A. Alhamadani, Hana�a; Kadhim, Ahmed S.; Ojaroudi Parchin, Naser; Saleh, Ameer L.; Elfergani, Issa T. E.; Rodriguez, Jonathan; Abd-Alhameed, Raed A.

Authors

Yasir I. A. Al-Yasir

Hana�a A. Alhamadani

Ahmed S. Kadhim

Ameer L. Saleh

Issa T. E. Elfergani

Jonathan Rodriguez

Raed A. Abd-Alhameed



Abstract

This paper presents a new compact microstrip filtering antenna with modified shaped slots to improve the impedance bandwidth. The proposed microstrip filtering antenna consists of three parts: the monopole radiating patch antenna; the Stepped Impedance Resonator (SIR) filter; and the feeding microstrip line. The designed structure is achieved on one-sided glass epoxy FR-4 substrate with dielectric constant εr = 4.4 and thickness h = 1.6 mm. The design procedure of the proposed filtering antenna starts from the second-order Chebyshev low pass filter (LPF) prototype. The achieved results show an excellent performance of S11-parameter with broadside antenna gain on +z-direction. Having two transmission zeros at 5.4 GHz and 7.7 GHz, good skirt selectivity and a wide-band impedance bandwidth of about 1.66 GHz makes the designed filtering antenna suitable for high-speed data communications. Both the simulation results generated by using the Computer Simulation Technology (CST) software package and the measurement achieved by using a vector network analyzer (HP 8510C) and the anechoic chamber show good agreement.

Journal Article Type Article
Acceptance Date Feb 18, 2020
Online Publication Date Feb 24, 2020
Publication Date 2020
Deposit Date Feb 21, 2022
Publicly Available Date Feb 21, 2022
Journal Inventions
Print ISSN 2411-5134
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 5
Issue 1
Article Number 11
DOI https://doi.org/10.3390/inventions5010011
Keywords microstrip filtering antenna; impedance bandwidth; FR-4; computer simulation technology; Chebyshev; LPF
Public URL http://researchrepository.napier.ac.uk/Output/2840223

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