A 24-pole high Tc superconducting filter for mobile communication applications

Xueqiang Zhang; Qingduan Meng; Fei Li; Chunguang Li; Shunzhou Li; Aisheng He; Hong Li; Yusheng He

doi:10.1088/0953-2048/19/5/S48

A 24-pole high T_c superconducting filter for mobile communication applications

Xueqiang Zhang^*, Qingduan Meng, Fei Li, Chunguang Li, Shunzhou Li, Aisheng He, Hong Li, Yusheng He

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

This paper presents a highly selective 24-pole Chebyshev HTS bandpass filter. The filter was designed at 1748 MHz centre frequency with 75 MHz bandwidth, which was suitable for the GSM base station. The filter was fabricated using double-sided YBCO films on a 3 in diameter, 0.43 mm thick sapphire substrate. The simulation of the filter performance was carried out using Sonnet software. A novel resonator structure was proposed. The resonator exhibited a very high Q value of about 30 000 at 77 K. The filter showed an excellent selectivity. At the band edge of the filter, the slope was about 17 dB MHz^-1. Out of the band, the rejection level is better than -90 dB.

Original language	English
Pages (from-to)	S394-S397
Journal	Superconductor Science and Technology
Volume	19
Issue number	5
DOIs	https://doi.org/10.1088/0953-2048/19/5/S48
Publication status	Published - May 2006
Externally published	Yes

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title = "A 24-pole high Tc superconducting filter for mobile communication applications",

abstract = "This paper presents a highly selective 24-pole Chebyshev HTS bandpass filter. The filter was designed at 1748 MHz centre frequency with 75 MHz bandwidth, which was suitable for the GSM base station. The filter was fabricated using double-sided YBCO films on a 3 in diameter, 0.43 mm thick sapphire substrate. The simulation of the filter performance was carried out using Sonnet software. A novel resonator structure was proposed. The resonator exhibited a very high Q value of about 30 000 at 77 K. The filter showed an excellent selectivity. At the band edge of the filter, the slope was about 17 dB MHz-1. Out of the band, the rejection level is better than -90 dB.",

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AU - Zhang, Xueqiang

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AU - Li, Fei

AU - Li, Chunguang

AU - Li, Shunzhou

AU - He, Aisheng

AU - Li, Hong

AU - He, Yusheng

PY - 2006/5

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AB - This paper presents a highly selective 24-pole Chebyshev HTS bandpass filter. The filter was designed at 1748 MHz centre frequency with 75 MHz bandwidth, which was suitable for the GSM base station. The filter was fabricated using double-sided YBCO films on a 3 in diameter, 0.43 mm thick sapphire substrate. The simulation of the filter performance was carried out using Sonnet software. A novel resonator structure was proposed. The resonator exhibited a very high Q value of about 30 000 at 77 K. The filter showed an excellent selectivity. At the band edge of the filter, the slope was about 17 dB MHz-1. Out of the band, the rejection level is better than -90 dB.

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A 24-pole high T_c superconducting filter for mobile communication applications

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