eprintid: 13982
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/39/82
datestamp: 2023-11-10 03:28:32
lastmod: 2023-11-10 03:28:32
status_changed: 2023-11-10 01:52:27
type: article
metadata_visibility: show
creators_name: Ng, G.S.
creators_name: Cheab, S.
creators_name: Wong, P.W.
creators_name: Soeung, S.
title: Synthesis of chained-elliptic function waveguide bandpass filter with high rejection
ispublished: pub
keywords: Bandpass filters; Bandwidth; Chebyshev filters; Elliptic filters; Microwave filters; Millimeter waves, Characteristic polynomials; Elliptic function filters; Fabrication Technologies; Filter characteristics; Fractional bandwidths; Manufacturing tolerances; Measurement and simulation; Millimetre wave applications, Waveguide filters
note: cited By 3
abstract: �This paper describes the synthesis of a bandpass filter to achieve high selectivity and rejection properties using a new class of filter functions called chained-elliptic function filters. Chained-elliptic filters have higher selectivity than Chebyshev function filters and have the property of sensitivity to manufacturing tolerance reduction in chained-function filters. The proposed design has high selectivity and reduced sensitivity, enabling easier and faster filter fabrication. The characteristic polynomials of chained-elliptic function filters are derived (through chaining elliptic filtering function) and extracted to form a coupling matrix of the bandpass filter. The novel transfer polynomials are given in detail, and a thorough investigation of the filter characteristics is performed. A theoretical comparison with Chebyshev and elliptic filters of the same order is performed to ascertain the demonstrated advantages of this proposed filter class. A high frequency narrow-band fourth-order chained-elliptic function waveguide filter centred at 28 GHz with a fractional bandwidth of 1.61 is fabricated to validate the proposed design concept. A good match among the measured, simulated, and ideal filter responses is shown where the overall responses between measurement and simulation have a difference of approximately 2 which is within the acceptable limit. The chained-elliptic function concept will be useful in designing low-cost high-performance microwave filters with various fabrication technologies for millimetre-wave applications. © 2020, Electromagnetics Academy. All rights reserved.
date: 2020
publisher: Electromagnetics Academy
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078913475&doi=10.2528%2fpierc19112002&partnerID=40&md5=14c5e9d758b25fbbfb6dc7a7631eb607
id_number: 10.2528/pierc19112002
full_text_status: none
publication: Progress In Electromagnetics Research C
volume: 99
pagerange: 61-75
refereed: TRUE
issn: 19378718
citation:   Ng, G.S. and Cheab, S. and Wong, P.W. and Soeung, S.  (2020) Synthesis of chained-elliptic function waveguide bandpass filter with high rejection.  Progress In Electromagnetics Research C, 99.  pp. 61-75.  ISSN 19378718