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Mathematical Problems in Engineering
Volume 2014, Article ID 679538, 6 pages
http://dx.doi.org/10.1155/2014/679538
Research Article

Investigation of Compact Balun-Bandpass Filter Using Folded Open-Loop Ring Resonators and Microstrip Lines

1Institute of Microelectronics and Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan
2Institute of Microelectronics and Department of Electrical Engineering, Center for Micro/Nano Science and Technology, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 701, Taiwan
3Department of Electrical Engineering, National University of Kaohsiung, Kaohsiung 811, Taiwan
4Department of Electronic Engineering, Southern Taiwan University, Tainan 710, Taiwan
5Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 811, Taiwan

Received 2 May 2014; Accepted 7 June 2014; Published 1 July 2014

Academic Editor: Teen-Hang Meen

Copyright © 2014 Chia-Mao Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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