A compact cpw-fed UWB BPF using combined microstrip sir

Yu Cheng Chen, Ching-Her Lee, Chung I G Hsu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-waveiength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less titan 1 dB between the first and the last |S11| null frequencies in the UWB passband and an upper-20-dB stopband band-width of about 6.14 GHz.

Original languageEnglish
Pages (from-to)918-921
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume51
Issue number4
DOIs
Publication statusPublished - 2009 Apr 1

Fingerprint

Bandpass filters
bandpass filters
Ultra-wideband (UWB)
Resonators
broadband
multimode resonators
resonators
impedance
Coplanar waveguides
Titan
Antenna feeders
Insertion losses
insertion loss
frequency response
Frequency response
resonant frequencies
Natural frequencies
prototypes
waveguides
bandwidth

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Chen, Yu Cheng ; Lee, Ching-Her ; Hsu, Chung I G. / A compact cpw-fed UWB BPF using combined microstrip sir. In: Microwave and Optical Technology Letters. 2009 ; Vol. 51, No. 4. pp. 918-921.
@article{cdf9174845dd4c42ab516d2d98ba7313,
title = "A compact cpw-fed UWB BPF using combined microstrip sir",
abstract = "This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-waveiength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less titan 1 dB between the first and the last |S11| null frequencies in the UWB passband and an upper-20-dB stopband band-width of about 6.14 GHz.",
author = "Chen, {Yu Cheng} and Ching-Her Lee and Hsu, {Chung I G}",
year = "2009",
month = "4",
day = "1",
doi = "10.1002/mop.24199",
language = "English",
volume = "51",
pages = "918--921",
journal = "Microwave and Optical Technology Letters",
issn = "0895-2477",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

A compact cpw-fed UWB BPF using combined microstrip sir. / Chen, Yu Cheng; Lee, Ching-Her; Hsu, Chung I G.

In: Microwave and Optical Technology Letters, Vol. 51, No. 4, 01.04.2009, p. 918-921.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A compact cpw-fed UWB BPF using combined microstrip sir

AU - Chen, Yu Cheng

AU - Lee, Ching-Her

AU - Hsu, Chung I G

PY - 2009/4/1

Y1 - 2009/4/1

N2 - This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-waveiength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less titan 1 dB between the first and the last |S11| null frequencies in the UWB passband and an upper-20-dB stopband band-width of about 6.14 GHz.

AB - This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-waveiength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less titan 1 dB between the first and the last |S11| null frequencies in the UWB passband and an upper-20-dB stopband band-width of about 6.14 GHz.

UR - http://www.scopus.com/inward/record.url?scp=63449093420&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63449093420&partnerID=8YFLogxK

U2 - 10.1002/mop.24199

DO - 10.1002/mop.24199

M3 - Article

AN - SCOPUS:63449093420

VL - 51

SP - 918

EP - 921

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

SN - 0895-2477

IS - 4

ER -