Broadband Impedance Transformer Based on Asymmetric Coupled Transmission Lines in Nonhomogeneous Medium

Vitaliy Zhurbenko; Viktor Krozer; Peter Meincke

doi:10.1109/MWSYM.2007.380142

Broadband Impedance Transformer Based on Asymmetric Coupled Transmission Lines in Nonhomogeneous Medium

Vitaliy Zhurbenko, Viktor Krozer, Peter Meincke

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

A new broadband quarter-wavelength impedance transformer based on an asymmetric coupled line section is presented. The bandwidth of the coupled line transformer is extended with the help of an interconnecting transmission line. An analytical model for the transformer is developed. The analysis of the structure reveals that a fractional bandwidth of more than 100% at –20 dB reflection level can be achieved with such a structure. An experimental transformer circuit has been designed, fabricated and tested. Theoretical and experimental results are fair agreement and confirm the established theory. The achieved bandwidth is almost 3 times larger as compared with standard matching circuits.

Original language	English
Title of host publication	International Microwave Symposium Digest
Number of pages	4
Place of Publication	USA
Publisher	IEEE
Publication date	2007
Pages	1893-1896
ISBN (Print)	1-4244-0688-9
DOIs	https://doi.org/10.1109/MWSYM.2007.380142
Publication status	Published - 2007
Event	2007 IEEE MTT-S International Microwave Symposium - Honolulu, United States Duration: 3 Jun 2007 → 8 Jun 2007 https://ieeexplore.ieee.org/xpl/conhome/4263706/proceeding

Conference

Conference	2007 IEEE MTT-S International Microwave Symposium
Country/Territory	United States
City	Honolulu
Period	03/06/2007 → 08/06/2007
Internet address	https://ieeexplore.ieee.org/xpl/conhome/4263706/proceeding

Bibliographical note

Copyright: 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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10.1109/MWSYM.2007.380142

04264231 Zhurbenko IMS 2007Final published version, 2.37 MB

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title = "Broadband Impedance Transformer Based on Asymmetric Coupled Transmission Lines in Nonhomogeneous Medium",

abstract = "A new broadband quarter-wavelength impedance transformer based on an asymmetric coupled line section is presented. The bandwidth of the coupled line transformer is extended with the help of an interconnecting transmission line. An analytical model for the transformer is developed. The analysis of the structure reveals that a fractional bandwidth of more than 100% at –20 dB reflection level can be achieved with such a structure. An experimental transformer circuit has been designed, fabricated and tested. Theoretical and experimental results are fair agreement and confirm the established theory. The achieved bandwidth is almost 3 times larger as compared with standard matching circuits.",

author = "Vitaliy Zhurbenko and Viktor Krozer and Peter Meincke",

note = "Copyright: 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 2007 IEEE MTT-S International Microwave Symposium, IMS 2007 ; Conference date: 03-06-2007 Through 08-06-2007",

year = "2007",

doi = "10.1109/MWSYM.2007.380142",

language = "English",

isbn = "1-4244-0688-9",

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AU - Zhurbenko, Vitaliy

AU - Krozer, Viktor

AU - Meincke, Peter

N1 - Copyright: 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 2007

Y1 - 2007

N2 - A new broadband quarter-wavelength impedance transformer based on an asymmetric coupled line section is presented. The bandwidth of the coupled line transformer is extended with the help of an interconnecting transmission line. An analytical model for the transformer is developed. The analysis of the structure reveals that a fractional bandwidth of more than 100% at –20 dB reflection level can be achieved with such a structure. An experimental transformer circuit has been designed, fabricated and tested. Theoretical and experimental results are fair agreement and confirm the established theory. The achieved bandwidth is almost 3 times larger as compared with standard matching circuits.

AB - A new broadband quarter-wavelength impedance transformer based on an asymmetric coupled line section is presented. The bandwidth of the coupled line transformer is extended with the help of an interconnecting transmission line. An analytical model for the transformer is developed. The analysis of the structure reveals that a fractional bandwidth of more than 100% at –20 dB reflection level can be achieved with such a structure. An experimental transformer circuit has been designed, fabricated and tested. Theoretical and experimental results are fair agreement and confirm the established theory. The achieved bandwidth is almost 3 times larger as compared with standard matching circuits.

U2 - 10.1109/MWSYM.2007.380142

DO - 10.1109/MWSYM.2007.380142

M3 - Article in proceedings

SN - 1-4244-0688-9

SP - 1893

EP - 1896

BT - International Microwave Symposium Digest

PB - IEEE

CY - USA

T2 - 2007 IEEE MTT-S International Microwave Symposium

Y2 - 3 June 2007 through 8 June 2007

ER -

Broadband Impedance Transformer Based on Asymmetric Coupled Transmission Lines in Nonhomogeneous Medium

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