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Stripline bandpass filters with step-impedance resonators |
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| Authors: | A. V. Zakharov M. Ye. Ilchenko V. Ya. Karnauh L. S. Pinchuk |
| Affiliation: | (1) School of Electronic Science, Jiangxi University of Finance and Economics, 632 West Feng Lin Street, Nanchang, 330013, P.R.China;(2) Department of Electrical and Electronic Systems, Saitama University, Saitama 338-8570, Japan;(3) Nippon Pillar Packing Co., Ltd., Sanda City Hyougo, 669 - 1333, Japan |
| Abstract: | Research results for stripline bandpass filters with step-impedance resonators formed on Al2O3 (Alumina, polycor) and operating in the frequency band 1500–2500 MHz are presented in this article. Use of step-impedance resonators breaks repetition factor in frequency positioning of passbands in such filters. This allows suppressing harmonics of output signal in transmitters and widening stopband for parasitic signals in receivers. |
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