Abstract—In this paper, broadband microwave parallel-coupled band-pass filters for wireless microwave technology are presented. Two designs of filters with center frequency of 10.5GHz and 9.5GHz are proposed. A metallic split ring resonator (SRR) as a basic building block for planar filters with dual-band band-pass frequency response, which exhibits simultaneously negative permittivity and permeability as a metamaterial without resorting to additional metallic wires is numerically investigated. The effect of SRRs on these filters to get new two metamaterial dual-band microwave filters is also presented. The dimensions of the second filter are reduced compared to the first filter with better results. Numerical results for all designs are obtained, then the filters are simulated using computer aided design (CAD) in microwave applications (Ansoft HFSS) and implemented on the Roger RT/duroid 6010,dielectric constant εr=10.2, and a substrate height t = 0.635mm.

Index Terms—Metamaterial, microwave filter, parallel-coupled, split ring resonators.

Ahmed Hameed Reja is with Jamia Millia Islamia, New Delhi, India (e-mail: ahmad8171@yahoo.com). Syed Naseem Ahmad is with Electronics & Communication Engineering Department, Jamia Millia Islamia, New Delhi, India (e-mail: snahmad@jmi.ac.in). Mushtaq A. Alqai sy is with Electronics & Communication Engineering Department, Universiti Tenaga Nasional, Malaysia (e-mail: mushtaq_alqaisy@yahoo.com).

 

Cite:Ahmed Hameed Reja, Syed Naseem Ahmad, and Mushtaq A. Alqaisy, "Study the Effect of SRRs on Broadband Microwave Parallel-Coupled Band-Pass Filters," International Journal of Computer and Electrical Engineering vol. 6, no.2, pp. 132-136, 2014.