High-Temperature Superconducting Microstrip Line Filter for Mobile Telecommunication

Yoshiki UENO; Kenshi SAITO; Nobuyoshi SAKAKIBARA; Mitsunari OKAZAKI; Masayuki AOKI

High-Temperature Superconducting Microstrip Line Filter for Mobile Telecommunication

Yoshiki UENO, Kenshi SAITO, Nobuyoshi SAKAKIBARA, Mitsunari OKAZAKI, Masayuki AOKI

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Large-area high-temperature superconducting films and damage-free processing techniques have been developed to fabricate low insertion loss and sharp skirt filters for mobile telecommunication. An off-axis-type dc sputtering method was employed to deposit Y-Ba-Cu-O films on both sides of the substrate. The surface resistance of the films was about 0. 35 mΩ(at 70 K and 10 GHz). An 11-pole bandpass receiving filter for the IS-95 telecommunication system was designed and fabricated using 60 mm 50 mm YBCO films on a 0. 5-mm-thick MgO substrate. The passband insertion loss at 70 K was about 0. 1 dB with 0. 1 dB ripple. The third-order intercept point of the filter was 49. 5 dBm. We have assembled the filter and a low-noise amplifier in a dewar with a cryocooler. Ultralow-noise performance (noise figure: 0. 5 dB at 70 K) was presented by the cryogenic filter subsystem.

Publication: IEICE TRANSACTIONS on Electronics Vol.E81-C No.10 pp.1573-1577

Publication Date: 1998/10/25

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Type of Manuscript: Special Section INVITED PAPER (Special Issue on Low- and High-Temperature Superconductive Electron Devices and Their Applications)

Category: Analog Applications

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Yoshiki UENO, Kenshi SAITO, Nobuyoshi SAKAKIBARA, Mitsunari OKAZAKI, Masayuki AOKI, "High-Temperature Superconducting Microstrip Line Filter for Mobile Telecommunication" in IEICE TRANSACTIONS on Electronics, vol. E81-C, no. 10, pp. 1573-1577, October 1998, doi: .
Abstract: Large-area high-temperature superconducting films and damage-free processing techniques have been developed to fabricate low insertion loss and sharp skirt filters for mobile telecommunication. An off-axis-type dc sputtering method was employed to deposit Y-Ba-Cu-O films on both sides of the substrate. The surface resistance of the films was about 0. 35 mΩ(at 70 K and 10 GHz). An 11-pole bandpass receiving filter for the IS-95 telecommunication system was designed and fabricated using 60 mm 50 mm YBCO films on a 0. 5-mm-thick MgO substrate. The passband insertion loss at 70 K was about 0. 1 dB with 0. 1 dB ripple. The third-order intercept point of the filter was 49. 5 dBm. We have assembled the filter and a low-noise amplifier in a dewar with a cryocooler. Ultralow-noise performance (noise figure: 0. 5 dB at 70 K) was presented by the cryogenic filter subsystem.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e81-c_10_1573/_p

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@ARTICLE{e81-c_10_1573,
author={Yoshiki UENO, Kenshi SAITO, Nobuyoshi SAKAKIBARA, Mitsunari OKAZAKI, Masayuki AOKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={High-Temperature Superconducting Microstrip Line Filter for Mobile Telecommunication},
year={1998},
volume={E81-C},
number={10},
pages={1573-1577},
abstract={Large-area high-temperature superconducting films and damage-free processing techniques have been developed to fabricate low insertion loss and sharp skirt filters for mobile telecommunication. An off-axis-type dc sputtering method was employed to deposit Y-Ba-Cu-O films on both sides of the substrate. The surface resistance of the films was about 0. 35 mΩ(at 70 K and 10 GHz). An 11-pole bandpass receiving filter for the IS-95 telecommunication system was designed and fabricated using 60 mm 50 mm YBCO films on a 0. 5-mm-thick MgO substrate. The passband insertion loss at 70 K was about 0. 1 dB with 0. 1 dB ripple. The third-order intercept point of the filter was 49. 5 dBm. We have assembled the filter and a low-noise amplifier in a dewar with a cryocooler. Ultralow-noise performance (noise figure: 0. 5 dB at 70 K) was presented by the cryogenic filter subsystem.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - High-Temperature Superconducting Microstrip Line Filter for Mobile Telecommunication
T2 - IEICE TRANSACTIONS on Electronics
SP - 1573
EP - 1577
AU - Yoshiki UENO
AU - Kenshi SAITO
AU - Nobuyoshi SAKAKIBARA
AU - Mitsunari OKAZAKI
AU - Masayuki AOKI
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E81-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 1998
AB - Large-area high-temperature superconducting films and damage-free processing techniques have been developed to fabricate low insertion loss and sharp skirt filters for mobile telecommunication. An off-axis-type dc sputtering method was employed to deposit Y-Ba-Cu-O films on both sides of the substrate. The surface resistance of the films was about 0. 35 mΩ(at 70 K and 10 GHz). An 11-pole bandpass receiving filter for the IS-95 telecommunication system was designed and fabricated using 60 mm 50 mm YBCO films on a 0. 5-mm-thick MgO substrate. The passband insertion loss at 70 K was about 0. 1 dB with 0. 1 dB ripple. The third-order intercept point of the filter was 49. 5 dBm. We have assembled the filter and a low-noise amplifier in a dewar with a cryocooler. Ultralow-noise performance (noise figure: 0. 5 dB at 70 K) was presented by the cryogenic filter subsystem.
ER -