2000
DOI: 10.1109/22.853467
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On the performance of HTS microstrip quasi-elliptic function filters for mobile communications application

Abstract: The low-loss and high-selective high-temperature superconducting (HTS) bandpass filters can enhance performance of mobile communications systems. In this paper, we summarize a recent progress of novel HTS preselect bandpass filters that have been developed for a European research project. The objective of the project is to construct an HTS-based transceiver for mast-mounted DCS1800 base stations. The HTS preselect receive filters have been designed to have a quasi-elliptic function response in order to provide… Show more

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Cited by 68 publications
(15 citation statements)
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“…For planer filter design, many kinds of resonator structures were proposed, such as the half-wavelength microstrip straight line resonator [5], open-loop resonator [6], J-shaped 0953-2048/06/050394+04$30.00 © 2006 IOP Publishing Ltd Printed in the UK S394 resonator [2] and hairpin resonator [7][8][9]. The main purpose of this work is to design a highly selective filter with 24 resonators.…”
Section: Resonator and Coupling Structurementioning
confidence: 99%
“…For planer filter design, many kinds of resonator structures were proposed, such as the half-wavelength microstrip straight line resonator [5], open-loop resonator [6], J-shaped 0953-2048/06/050394+04$30.00 © 2006 IOP Publishing Ltd Printed in the UK S394 resonator [2] and hairpin resonator [7][8][9]. The main purpose of this work is to design a highly selective filter with 24 resonators.…”
Section: Resonator and Coupling Structurementioning
confidence: 99%
“…With both the maturity of the preparation technology of HTS film and improvement of refrigeration level, the application of HTS receiver front-end in mobile communication base stations is becoming prevalent [1][2][3][4][5][6][7][8][9]. Effective improvement of the out-of-band suppression in the bandpass filters can be achieved by introducing transmission zeros (TZs) on the imaginary axis on complex plane and notches [1][2][3][4][5][10][11][12][13][14][15]. Cross coupling is one of the most widely-used methods to introduce TZs in HTS filters.…”
Section: Introductionmentioning
confidence: 99%
“…Filters with advantages such as low insertion loss, a high-quality factor and excellent out-ofband rejection are widely researched by scholars [1][2][3][4][5][6][7][8][9][10]. In order to obtain a better selectivity within a limited area of high-temperature superconducting (HTS) thin films, introducing cross coupling between non-adjacent resonators [11][12][13][14][15][16][17], adopting parallel topology [18][19][20] and extracted-pole technology [18][19][20][21][22][23][24] to realize the quasi-elliptic function [13][14][15][16][17][25][26][27][28][29][30][31][32][33][34][35][36][37] and generalized Chebyshev function [38][39][40]…”
Section: Introductionmentioning
confidence: 99%