A Metamaterial Inspired Multiband Conformal Bandpass Filter with Improved Quality Factor for Sub-6 GHz Wireless Communication Applications

Author:

Duti Rekha Vutukuri Sarvani1ORCID,Vineetha Kottapadikal Vinodan2ORCID,Madhav Boddapati Taraka Phani2ORCID,Islam Tanvir3ORCID,Das Sudipta4ORCID,El Ghzaoui Mohammed5ORCID

Affiliation:

1. Department of Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, India

2. Antennas and Liquid Crystals Research Center, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, India

3. Department of Electrical and Computer Engineering, University of Houston, Houston, USA

4. Department of Electronics and Communication Engineering, IMPS College of Engineering and Technology, Malda, West Bengal, 732103, India

5. Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fes, Morocco

Abstract

This paper deals with the design, simulation, and practical modeling of metamaterial-based multiband conformal bandpass filter (BPF) for various wireless communication applications with improved quality factors. The novel metamaterial in the form of a split ring resonator is loaded on the ground plane face of the proposed BPF. The overall dimension of the designed BPF is only [Formula: see text]. The proposed BPF is tuned initially for quality factor enhancement based on the thickness of the substrate, physical parameters of the f transmission line, ground plane, externally loaded elements, and the gap in the metamaterial loading. The suggested filter operates at triple band covering the frequency bands from 1.4 to 2.2, 3.6 to 3.9, and 4.8 to 5.9[Formula: see text]GHz, which are suitable for sub-6[Formula: see text]GHz 5G and other wireless applications. The insertion loss is observed as 1[Formula: see text]dB, which is suitable for the proposed BPF. The conformal behavior of the filter is judged through bending deformation analysis at various bending positions like (15[Formula: see text], 30[Formula: see text], 45[Formula: see text], 60[Formula: see text], and 90[Formula: see text]). The proposed BPF retains triple pass band characteristics at various bending deformations, which makes it suitable to be used in curved structures or flexible circuitry. The theory of equivalent circuits and quality factor [Formula: see text] of the designed BPF is discussed in this paper. The results are analyzed experimentally through ANRITSU-MS2037C combinational analyzer. The proposed BPF is suitable for sub-6 GHz 5G, WLAN, and Wi-Max applications.

Funder

DST

Publisher

World Scientific Pub Co Pte Ltd

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

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