NDLI: Width-varying conductor-backed coplanar waveguide-based low-pass filter with a constant signal trace to adjacent grounds separation

Content Provider	IET Digital Library
Author	Shamaileh, Khair A. Al Dib, Nihad I. Abushamleh, Said A.
Abstract	In this study, the authors introduce a new and systematic procedure for the design and optimisation of a conductor-backed coplanar waveguide low-pass filter (LPF). The width of the centre conductor (i.e. signal trace) is modelled in a truncated Fourier series, whereas the gap to the adjacent grounds is maintained constant relative to the width variation. Transmission lines theory is adopted to model the LPF and establish an optimisation setup. Three optimisation techniques; namely, trust-region-reflective algorithm, symbiotic organism search, and genetic algorithm are investigated to minimise the developed bound-constrained non-linear objective function. To verify the proposed procedure, an LPF with a cutoff frequency of 2 GHz is optimised, simulated, and measured. The transmission parameter in the passband is found to be in the range −0.3 ± 0.1 dB, and better than −30 dB in the stopband.
Starting Page	386
Ending Page	390
Page Count	5
ISSN	17518725
Volume Number	13
e-ISSN	17518733
Issue Number	Issue 3, Feb (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/13/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5394
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-01-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Centre Conductor Conductor-backed Coplanar Waveguide Low-pass Filter Conductor-backed Coplanar Waveguide-based Low-pass Filter Conductors Conductors (electric) Coplanar Waveguide Filter And Other Network Fourier Series Frequency 2.0 GHz Genetic Algorithm Low-pass Filter Microwave Filter Optimisation Technique Transmission Line Theory Trust-region-reflective Algorithm Waveguide And Microwave Transmission Line Component Waveguide Filter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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