A wideband UHF high-temperature superconducting filter system with a fractional bandwidth over 108%

Haibo Huang; Yun Wu; Jia Wang; Yongbo Bian; Xu Wang; Guoqiang Li; Xueqiang Zhang; Chunguang Li; Liang Sun; Yusheng He

doi:10.1016/j.physc.2018.04.014

A wideband UHF high-temperature superconducting filter system with a fractional bandwidth over 108%

Haibo Huang
, Yun Wu
, Jia Wang
, Yongbo Bian
, Xu Wang
, Guoqiang Li
, Xueqiang Zhang
, Chunguang Li^*
, Liang Sun
, Yusheng He

^*Corresponding author for this work

CAS - Institute of Physics
University of Chinese Academy of Sciences

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

5 Citations (Scopus)

Abstract

A High-temperature superconducting (HTS) bandpass filter system containing a lowpass filter, a highpass filter and an LNA has been fabricated to meet the demands of wideband wireless signal receiving system. The filter system has an ultimate fractional bandwidth over 108% with the passband from 820 MHz to 2750 MHz. Besides, the filter system showed good frequency selectivity and out-of-band rejection. The 40 dB to 3 dB rectangle coefficient of our filter system is 1.4, which is better than that of an 8-pole Chebyshev filter, and the out-of-band rejection is better than 40 dB. Through systematical optimization, a return loss of better than 9.8 dB was received in the filter system. This system also showed advantages in design and fabrication precision.

Original language	English
Pages (from-to)	78-81
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	550
DOIs	https://doi.org/10.1016/j.physc.2018.04.014
Publication status	Published - 15 Jul 2018
Externally published	Yes

Keywords

HTS microstrip filters
Highpass filter
Lowpass filter
UHF band
Wide passband

Access to Document

10.1016/j.physc.2018.04.014

Cite this

@article{84022deaac2048c28fac903914cdb30c,

title = "A wideband UHF high-temperature superconducting filter system with a fractional bandwidth over 108\%",

abstract = "A High-temperature superconducting (HTS) bandpass filter system containing a lowpass filter, a highpass filter and an LNA has been fabricated to meet the demands of wideband wireless signal receiving system. The filter system has an ultimate fractional bandwidth over 108\% with the passband from 820 MHz to 2750 MHz. Besides, the filter system showed good frequency selectivity and out-of-band rejection. The 40 dB to 3 dB rectangle coefficient of our filter system is 1.4, which is better than that of an 8-pole Chebyshev filter, and the out-of-band rejection is better than 40 dB. Through systematical optimization, a return loss of better than 9.8 dB was received in the filter system. This system also showed advantages in design and fabrication precision.",

keywords = "HTS microstrip filters, Highpass filter, Lowpass filter, UHF band, Wide passband",

author = "Haibo Huang and Yun Wu and Jia Wang and Yongbo Bian and Xu Wang and Guoqiang Li and Xueqiang Zhang and Chunguang Li and Liang Sun and Yusheng He",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jul,

day = "15",

doi = "10.1016/j.physc.2018.04.014",

language = "English",

volume = "550",

pages = "78--81",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A wideband UHF high-temperature superconducting filter system with a fractional bandwidth over 108%

AU - Huang, Haibo

AU - Wu, Yun

AU - Wang, Jia

AU - Bian, Yongbo

AU - Wang, Xu

AU - Li, Guoqiang

AU - Zhang, Xueqiang

AU - Li, Chunguang

AU - Sun, Liang

AU - He, Yusheng

PY - 2018/7/15

Y1 - 2018/7/15

N2 - A High-temperature superconducting (HTS) bandpass filter system containing a lowpass filter, a highpass filter and an LNA has been fabricated to meet the demands of wideband wireless signal receiving system. The filter system has an ultimate fractional bandwidth over 108% with the passband from 820 MHz to 2750 MHz. Besides, the filter system showed good frequency selectivity and out-of-band rejection. The 40 dB to 3 dB rectangle coefficient of our filter system is 1.4, which is better than that of an 8-pole Chebyshev filter, and the out-of-band rejection is better than 40 dB. Through systematical optimization, a return loss of better than 9.8 dB was received in the filter system. This system also showed advantages in design and fabrication precision.

AB - A High-temperature superconducting (HTS) bandpass filter system containing a lowpass filter, a highpass filter and an LNA has been fabricated to meet the demands of wideband wireless signal receiving system. The filter system has an ultimate fractional bandwidth over 108% with the passband from 820 MHz to 2750 MHz. Besides, the filter system showed good frequency selectivity and out-of-band rejection. The 40 dB to 3 dB rectangle coefficient of our filter system is 1.4, which is better than that of an 8-pole Chebyshev filter, and the out-of-band rejection is better than 40 dB. Through systematical optimization, a return loss of better than 9.8 dB was received in the filter system. This system also showed advantages in design and fabrication precision.

KW - HTS microstrip filters

KW - Highpass filter

KW - Lowpass filter

KW - UHF band

KW - Wide passband

UR - https://www.scopus.com/pages/publications/85046171785

U2 - 10.1016/j.physc.2018.04.014

DO - 10.1016/j.physc.2018.04.014

M3 - Article

AN - SCOPUS:85046171785

SN - 0921-4534

VL - 550

SP - 78

EP - 81

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

ER -

A wideband UHF high-temperature superconducting filter system with a fractional bandwidth over 108%

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this