Improved miniaturization method for coupled-line filters

Seungku Lee, Yongshik Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A miniaturization method for coupled-line filters is demonstrated that relies on the equality of the two most important parameters for filter synthesis, the propagation constant and the image impedance, before and after miniaturization. The method enables to maintain the bandwidth intact as opposed to the previous miniaturization method based on the same structure. This proves that bandwidth reduction in miniaturized filters is not due to miniaturization itself but rather due to the mathematical formulation of miniaturization. As compensation of reduced bandwidth is not necessary, the proposed method provides much simpler miniaturization procedure.

Original languageEnglish
Pages (from-to)2825-2828
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume52
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1

Fingerprint

miniaturization
Bandwidth
filters
bandwidth
impedance
formulations
propagation
synthesis

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

@article{d7d5572ace6c4075a1ad20f1ac5e9c2f,
title = "Improved miniaturization method for coupled-line filters",
abstract = "A miniaturization method for coupled-line filters is demonstrated that relies on the equality of the two most important parameters for filter synthesis, the propagation constant and the image impedance, before and after miniaturization. The method enables to maintain the bandwidth intact as opposed to the previous miniaturization method based on the same structure. This proves that bandwidth reduction in miniaturized filters is not due to miniaturization itself but rather due to the mathematical formulation of miniaturization. As compensation of reduced bandwidth is not necessary, the proposed method provides much simpler miniaturization procedure.",
author = "Seungku Lee and Yongshik Lee",
year = "2010",
month = "12",
day = "1",
doi = "10.1002/mop.25607",
language = "English",
volume = "52",
pages = "2825--2828",
journal = "Microwave and Optical Technology Letters",
issn = "0895-2477",
publisher = "John Wiley and Sons Inc.",
number = "12",

}

Improved miniaturization method for coupled-line filters. / Lee, Seungku; Lee, Yongshik.

In: Microwave and Optical Technology Letters, Vol. 52, No. 12, 01.12.2010, p. 2825-2828.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Improved miniaturization method for coupled-line filters

AU - Lee, Seungku

AU - Lee, Yongshik

PY - 2010/12/1

Y1 - 2010/12/1

N2 - A miniaturization method for coupled-line filters is demonstrated that relies on the equality of the two most important parameters for filter synthesis, the propagation constant and the image impedance, before and after miniaturization. The method enables to maintain the bandwidth intact as opposed to the previous miniaturization method based on the same structure. This proves that bandwidth reduction in miniaturized filters is not due to miniaturization itself but rather due to the mathematical formulation of miniaturization. As compensation of reduced bandwidth is not necessary, the proposed method provides much simpler miniaturization procedure.

AB - A miniaturization method for coupled-line filters is demonstrated that relies on the equality of the two most important parameters for filter synthesis, the propagation constant and the image impedance, before and after miniaturization. The method enables to maintain the bandwidth intact as opposed to the previous miniaturization method based on the same structure. This proves that bandwidth reduction in miniaturized filters is not due to miniaturization itself but rather due to the mathematical formulation of miniaturization. As compensation of reduced bandwidth is not necessary, the proposed method provides much simpler miniaturization procedure.

UR - http://www.scopus.com/inward/record.url?scp=80155129009&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80155129009&partnerID=8YFLogxK

U2 - 10.1002/mop.25607

DO - 10.1002/mop.25607

M3 - Article

VL - 52

SP - 2825

EP - 2828

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

SN - 0895-2477

IS - 12

ER -