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A microstrip ring‐like diplexer for bluetooth and UWB application
Author(s) -
Ye ChangSin,
Su YanKuin,
Weng MinHang,
Hung ChengYuan
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24358
Subject(s) - diplexer , passband , bluetooth , microstrip , microwave , band pass filter , electronic engineering , ring (chemistry) , electrical engineering , engineering , telecommunications , physics , wireless , chemistry , organic chemistry
In this article, design of a microstrip ring‐like diplexer for Bluetooth and ultrawide band application is presented. Two ring‐like bandpass filters, operated at 2.4 and 4 GHz, are combined together to form the proposed microstrip diplexer. Several transmission zeros located at the passband edges are introduced to improve the passband selectivity. High isolation between the two passband greater than 28 dB is achieved in this study. The designed diplexer is investigated numerically and experimentally. Measured results show a good agreement with the simulated analysis. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1518–1520, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24358