Design of balun bandpass filter using doubly loaded output structure

Yu Heng Ye, Yu Feng Zheng, Shin Chieh Huang, Kuo Sheng Chin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work presents the design of balun bandpass filter using doubly loaded output and direct coupled structures. A symmetrical doubly loaded output structure was constructed to obtain balanced outputs and create transmission zeros. The direct coupled structure was applied for obtaining high order and achieve high selectivity. A fourth-order balun filter was fabricated. Measured results demonstrate an excellent phase difference of 180°±0.25°, an amplitude imbalance of ±0.09 dB, and a low insertion loss of (3.0+1.2) dB at 2.41 GHz. High-selectivity responses with a pair of transmission zeros was observed.

Original languageEnglish
Title of host publication2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467381949
DOIs
StatePublished - 05 07 2016
Event2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2016 - Nanjing, Jiangsu, China
Duration: 16 05 201618 05 2016

Publication series

Name2016 IEEE International Workshop on Electromagnetics, iWEM 2016 - Proceeding

Conference

Conference2016 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2016
Country/TerritoryChina
CityNanjing, Jiangsu
Period16/05/1618/05/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

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