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A planar BPF for UWB communication systems with single/multiple interference rejection bands

Published online by Cambridge University Press:  27 October 2023

Abu Nasar Ghazali Open the ORCID record for Abu Nasar Ghazali [Opens in a new window]  and
Mohd Sazid Open the ORCID record for Mohd Sazid [Opens in a new window]
Abu Nasar Ghazali*
Affiliation:
School of Electronics Engineering, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
Mohd Sazid
Affiliation:
Department of Electronics and Communication Engineering, Delhi Technological University, Delhi, India
*
Corresponding author: Abu Nasar Ghazali; Email: anghazali@gmail.com; abu.ghazalifet@kiit.ac.in
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Abstract

The design and development of a microstrip-based planar ultra-wideband (UWB) bandpass filter (BPF) with single/multiple interference rejection capability is presented. The proposed BPF structure is developed based on the broadside coupled mechanism of microstrip/coplanar waveguide (CPW). The BPF has microstrips and short-circuited CPW capacitively coupled through the substrate. The basic frequency response generated from this geometry covers the necessary UWB spectrum (3.1–10.6 GHz) and possesses appreciable characteristics due to dual transmission zeros at either passband boundary. Multiple resonators are embedded in the basic BPF structure to develop passband notches to circumvent unnecessary interferences. A low-pass filter is later integrated into geometry to extend the upper stopband. The proposed structure is compact and covers an area of only 14 × 11.4 mm2.

Keywords

bandpass filter (BPF)broadside coupledequivalent lumped element circuitlow pass filter (LPF)microstrip/CPWmultiple mode resonator (MMR)notched bandshort-circuited coplanar waveguide (SCCPW)transmission zeros (TZs)ultra-wideband (UWB)
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 8
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Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with The European Microwave Association

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