The design of a compact quasielliptic filter using stepped impedance resonators with harmonic suppression

Yu Wei Chen, Min Hua Ho, Yen Ju Liu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A bandpass filter is designed at 2.4 GHz using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators having one end shorted are formed by a half-wavelength stepped impedance resonator with its middle shorting to ground. The modes that the shorted-end λ/4 stepped impedance resonator supports are the (1 + 2n)/4. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as to suppress the first higher harmonic. A dual-path design is implemented in the proposed filter to create a quasi-elliptic frequency response. The equivalent circuit model is developed and the experiments are conducted for circuit design verification.

Original languageEnglish
Pages (from-to)800-804
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume49
Issue number4
DOIs
Publication statusPublished - 2007 Apr 1

Fingerprint

Resonators
resonators
retarding
impedance
harmonics
filters
Wavelength
wavelengths
Insertion losses
Bandpass filters
bandpass filters
equivalent circuits
insertion loss
Equivalent circuits
frequency response
Frequency response
Networks (circuits)
Experiments

All Science Journal Classification (ASJC) codes

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

Cite this

@article{c515626d24c24cfb8386cc9a04fdb417,
title = "The design of a compact quasielliptic filter using stepped impedance resonators with harmonic suppression",
abstract = "A bandpass filter is designed at 2.4 GHz using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators having one end shorted are formed by a half-wavelength stepped impedance resonator with its middle shorting to ground. The modes that the shorted-end λ/4 stepped impedance resonator supports are the (1 + 2n)/4. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as to suppress the first higher harmonic. A dual-path design is implemented in the proposed filter to create a quasi-elliptic frequency response. The equivalent circuit model is developed and the experiments are conducted for circuit design verification.",
author = "Chen, {Yu Wei} and Ho, {Min Hua} and Liu, {Yen Ju}",
year = "2007",
month = "4",
day = "1",
doi = "10.1002/mop.22298",
language = "English",
volume = "49",
pages = "800--804",
journal = "Microwave and Optical Technology Letters",
issn = "0895-2477",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

The design of a compact quasielliptic filter using stepped impedance resonators with harmonic suppression. / Chen, Yu Wei; Ho, Min Hua; Liu, Yen Ju.

In: Microwave and Optical Technology Letters, Vol. 49, No. 4, 01.04.2007, p. 800-804.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The design of a compact quasielliptic filter using stepped impedance resonators with harmonic suppression

AU - Chen, Yu Wei

AU - Ho, Min Hua

AU - Liu, Yen Ju

PY - 2007/4/1

Y1 - 2007/4/1

N2 - A bandpass filter is designed at 2.4 GHz using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators having one end shorted are formed by a half-wavelength stepped impedance resonator with its middle shorting to ground. The modes that the shorted-end λ/4 stepped impedance resonator supports are the (1 + 2n)/4. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as to suppress the first higher harmonic. A dual-path design is implemented in the proposed filter to create a quasi-elliptic frequency response. The equivalent circuit model is developed and the experiments are conducted for circuit design verification.

AB - A bandpass filter is designed at 2.4 GHz using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators having one end shorted are formed by a half-wavelength stepped impedance resonator with its middle shorting to ground. The modes that the shorted-end λ/4 stepped impedance resonator supports are the (1 + 2n)/4. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as to suppress the first higher harmonic. A dual-path design is implemented in the proposed filter to create a quasi-elliptic frequency response. The equivalent circuit model is developed and the experiments are conducted for circuit design verification.

UR - http://www.scopus.com/inward/record.url?scp=34047201396&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34047201396&partnerID=8YFLogxK

U2 - 10.1002/mop.22298

DO - 10.1002/mop.22298

M3 - Article

AN - SCOPUS:34047201396

VL - 49

SP - 800

EP - 804

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

SN - 0895-2477

IS - 4

ER -