New Design Approach for the Dual-Band Bandpass Microwave Filter (DBBPF) Inspired by Square Symmetrical Metamaterial Resonators (SSRRs) for X- and Ku-Band Applications

Authors M. Berka1,2 , Z. Mahdjoub2 , A. Bendaoudi2 , K. Benkhallouk2 , A.Y. Rouabhi2

1Department of Electrotechnics, University Mustapha Stambouli of Mascara, 29000 Mascara, Algeria

2Laboratory E.P.O, University of S.B.A, 22000 Sidi Bel Abbés, Algeria

Issue Volume 14, Year 2022, Number 6
Dates Received 24 October 2022; revised manuscript received 20 December 2022; published online 27 December 2022
Citation M. Berka, Z. Mahdjoub, et al., J. Nano- Electron. Phys. 14 No 6, 06018 (2022)
PACS Number(s) 42.81.Qb
Keywords Bandpass filter, Metamaterial (2) , Permeability (2) , Resonator (3) , Transmission (16) .

In many modern telecommunication systems, band-pass filters represent main devices for multi-band applications. In this paper, a new design approach of the dual-band bandpass microwave filter (DBBPF) is provided for X- and Ku-band applications. The proposed filter is inspired by two symmetrical split ring metamaterial resonators (SSRRs) of the same square shape and different sizes. These resonators which have negative permittivity (μ < 0) are interlinked by a metallic line and etched on the upper face of a Rogers’s substrate (RO4003) with physical characteristics r = 3.55 and tg = 0.0027. The two SSRRs are connected to two microstrip feed lines adapted to 50 Ω impedance. To obtain the frequency responses of this complicated microwave structure, simulations based on the HFSS are launched. The proposed DBBPF which has the dimensions 26.86 mm  19.60 mm  0.8 mm provides good electrical qualities for two bandwidths of 380 MHz and 710 MHz covering X- and Ku- bands, respectively.

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