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

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.

Citation

Al-Yasir, Y. I. A., A. Alhamadani, H., Kadhim, A. S., Ojaroudi Parchin, N., Saleh, A. L., Elfergani, I. T. E., …Abd-Alhameed, R. A. (2020). Design of a Wide-Band Microstrip Filtering Antenna with Modified Shaped Slots and SIR Structure. Inventions, 5(1), Article 11. https://doi.org/10.3390/inventions5010011

• 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