Design of reconfigurable dual-band branch-line coupler

Bharani Samrat Elesela; Yi Chyun Chiang

doi:10.1109/iWEM.2016.7504932

Design of reconfigurable dual-band branch-line coupler

Bharani Samrat Elesela, Yi Chyun Chiang

Department of Electronic Engineering

Chang Gung University

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

3 Scopus citations

Abstract

This paper describes design of a reconfigurable dual-band branch-line coupler, consisting of conventional dual-band coupler associated with new type of tuning networks for individually adjusting coupling coefficient at two operation frequencies. The tuning network consists of transmission line, varactor diodes and lumped element components to achieve the variation of admittance of tuning network at different operating frequencies according to the given controlled voltages. In certain range of the control voltage, one can obtain the main change in coupling coefficient at upper frequency band. The dominant variation of coupling coefficient in lower frequency band will be obtained in the other range of the applied control voltages. The coupling coefficient of the coupler is almost invariant at the other operation band, while it is tuned at one of operation bands. An experimental prototype working at the two operating frequency bands of 1 and 2 GHz is constructed on a PCB substrate to validate the proposed reconfigurable dual-band coupler. The measurement results show good correspondence with the simulation results.

Original language	English
Title of host publication	2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467381949
DOIs	https://doi.org/10.1109/iWEM.2016.7504932
State	Published - 05 07 2016
Event	2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2016 - Nanjing, Jiangsu, China Duration: 16 05 2016 → 18 05 2016

Publication series

Name	2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding

Conference

Conference	2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2016
Country/Territory	China
City	Nanjing, Jiangsu
Period	16/05/16 → 18/05/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

Reconfigurable dual-band coupler
branch-line couplers
tuning network

Access to Document

10.1109/iWEM.2016.7504932

Cite this

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title = "Design of reconfigurable dual-band branch-line coupler",

abstract = "This paper describes design of a reconfigurable dual-band branch-line coupler, consisting of conventional dual-band coupler associated with new type of tuning networks for individually adjusting coupling coefficient at two operation frequencies. The tuning network consists of transmission line, varactor diodes and lumped element components to achieve the variation of admittance of tuning network at different operating frequencies according to the given controlled voltages. In certain range of the control voltage, one can obtain the main change in coupling coefficient at upper frequency band. The dominant variation of coupling coefficient in lower frequency band will be obtained in the other range of the applied control voltages. The coupling coefficient of the coupler is almost invariant at the other operation band, while it is tuned at one of operation bands. An experimental prototype working at the two operating frequency bands of 1 and 2 GHz is constructed on a PCB substrate to validate the proposed reconfigurable dual-band coupler. The measurement results show good correspondence with the simulation results.",

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Elesela, BS & Chiang, YC 2016, Design of reconfigurable dual-band branch-line coupler. in 2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding., 7504932, 2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2016, Nanjing, Jiangsu, China, 16/05/16. https://doi.org/10.1109/iWEM.2016.7504932

Design of reconfigurable dual-band branch-line coupler. / Elesela, Bharani Samrat; Chiang, Yi Chyun.
2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding. Institute of Electrical and Electronics Engineers Inc., 2016. 7504932 (2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding).

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

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N2 - This paper describes design of a reconfigurable dual-band branch-line coupler, consisting of conventional dual-band coupler associated with new type of tuning networks for individually adjusting coupling coefficient at two operation frequencies. The tuning network consists of transmission line, varactor diodes and lumped element components to achieve the variation of admittance of tuning network at different operating frequencies according to the given controlled voltages. In certain range of the control voltage, one can obtain the main change in coupling coefficient at upper frequency band. The dominant variation of coupling coefficient in lower frequency band will be obtained in the other range of the applied control voltages. The coupling coefficient of the coupler is almost invariant at the other operation band, while it is tuned at one of operation bands. An experimental prototype working at the two operating frequency bands of 1 and 2 GHz is constructed on a PCB substrate to validate the proposed reconfigurable dual-band coupler. The measurement results show good correspondence with the simulation results.

AB - This paper describes design of a reconfigurable dual-band branch-line coupler, consisting of conventional dual-band coupler associated with new type of tuning networks for individually adjusting coupling coefficient at two operation frequencies. The tuning network consists of transmission line, varactor diodes and lumped element components to achieve the variation of admittance of tuning network at different operating frequencies according to the given controlled voltages. In certain range of the control voltage, one can obtain the main change in coupling coefficient at upper frequency band. The dominant variation of coupling coefficient in lower frequency band will be obtained in the other range of the applied control voltages. The coupling coefficient of the coupler is almost invariant at the other operation band, while it is tuned at one of operation bands. An experimental prototype working at the two operating frequency bands of 1 and 2 GHz is constructed on a PCB substrate to validate the proposed reconfigurable dual-band coupler. The measurement results show good correspondence with the simulation results.

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Design of reconfigurable dual-band branch-line coupler

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