Compact multi-layer diplexer for dual mode portable telephones

作者: Byoung Hwa Lee

DOI: 10.1002/MOP.11179

关键词:

摘要: A new compact and effective lumped-element diplexer structure targeted for low-temperature co-fired ceramic (LTCC) implementation that can exhibit high levels of isolation between low-pass high-pass filters is proposed. Design equation formulations take into account the two are presented. As an example, a multilayer (MLC) chip in dual-mode portable telephone 900-MHz digital-cellular 1.9-GHz personal communication systems designed fabricated. The simulated results compared with measured data good agreement reported. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 237–239, 2003; Published online InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11179

参考文章(6)
Zhu Yi-Sheng, Chen Wai-Kai, On the design of a diplexer having Butterworth characteristics IEEE Transactions on Circuits and Systems. ,vol. 35, pp. 1455- 1457 ,(1988) , 10.1109/31.14473
Vitold Belevitch, On filter pairs with butterworth characteristics International Journal of Circuit Theory and Applications. ,vol. 15, pp. 51- 60 ,(1987) , 10.1002/CTA.4490150104
M.H. Capstick, Microstrip lowpass-bandpass diplexer topology Electronics Letters. ,vol. 35, pp. 1958- 1960 ,(1999) , 10.1049/EL:19991303
D. Ahn, J.-S. Park, C.-S. Kim, J. Kim, Y. Qian, T. Itoh, A design of the low-pass filter using the novel microstrip defected ground structure IEEE Transactions on Microwave Theory and Techniques. ,vol. 49, pp. 86- 93 ,(2001) , 10.1109/22.899965
B. Strassner, K. Chang, Wide-band low-loss high-isolation microstrip periodic-stub diplexer for multiple-frequency applications IEEE Transactions on Microwave Theory and Techniques. ,vol. 49, pp. 1818- 1820 ,(2001) , 10.1109/22.954789
D.C. Youla, S.U. Pillai, F. Winter, Theory and design of maximally flat low-pass high-pass reactance-ladder diplexers IEEE Transactions on Circuits and Systems I-regular Papers. ,vol. 39, pp. 337- 350 ,(1992) , 10.1109/81.139285