Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter

Yuta TAKAGI; Kei SATOH; Daisuke KOIZUMI; Shoichi NARAHASHI

doi:10.1587/transele.E96.C.1033

Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter

Yuta TAKAGI, Kei SATOH, Daisuke KOIZUMI, Shoichi NARAHASHI

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This paper proposes a novel high-temperature superconducting dual-band bandpass filter (HTS-DBPF), that employs a broadside coupling structure, in which quarter-wavelength resonators are formed on opposite sides of each substrate. This structure provides a dual-band operation of the BPF and flexibility, in the sense of having a wide range in selecting two center passband frequencies of the HTS-DBPF. This paper employs the ratio of the lower and higher center passband frequencies, α, as a criterion for evaluating the flexibility. The obtained α ranges are from 1 to 4.7, which are the widest for DBPFs for mobile communications applications, to the best knowledge of the authors. This paper presents a 2.4-/2.9-GHz band HTS-DBPF, as an experimental example, using a YBCO film deposited on an MgO substrate. The measured frequency responses of the HTS-DBPF agree with the electromagnetic simulated results. Measurement and simulation results confirm that the proposed filter architecture is effective in configuring a DBPF that can set each center passband frequency widely.

Publication: IEICE TRANSACTIONS on Electronics Vol.E96-C No.8 pp.1033-1040

Publication Date: 2013/08/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E96.C.1033

Type of Manuscript: PAPER

Category: Microwaves, Millimeter-Waves

Authors

Yuta TAKAGI
  NTT DOCOMO, INC.
Kei SATOH
  NTT DOCOMO, INC.
Daisuke KOIZUMI
  NTT DOCOMO, INC.
Shoichi NARAHASHI
  NTT DOCOMO, INC.

Keyword

bandpass filters, dual-band, resonator filters, broadside coupling, high-temperature superconducting, YBCO

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Yuta TAKAGI, Kei SATOH, Daisuke KOIZUMI, Shoichi NARAHASHI, "Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter" in IEICE TRANSACTIONS on Electronics, vol. E96-C, no. 8, pp. 1033-1040, August 2013, doi: 10.1587/transele.E96.C.1033.
Abstract: This paper proposes a novel high-temperature superconducting dual-band bandpass filter (HTS-DBPF), that employs a broadside coupling structure, in which quarter-wavelength resonators are formed on opposite sides of each substrate. This structure provides a dual-band operation of the BPF and flexibility, in the sense of having a wide range in selecting two center passband frequencies of the HTS-DBPF. This paper employs the ratio of the lower and higher center passband frequencies, α, as a criterion for evaluating the flexibility. The obtained α ranges are from 1 to 4.7, which are the widest for DBPFs for mobile communications applications, to the best knowledge of the authors. This paper presents a 2.4-/2.9-GHz band HTS-DBPF, as an experimental example, using a YBCO film deposited on an MgO substrate. The measured frequency responses of the HTS-DBPF agree with the electromagnetic simulated results. Measurement and simulation results confirm that the proposed filter architecture is effective in configuring a DBPF that can set each center passband frequency widely.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.1033/_p

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@ARTICLE{e96-c_8_1033,
author={Yuta TAKAGI, Kei SATOH, Daisuke KOIZUMI, Shoichi NARAHASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter},
year={2013},
volume={E96-C},
number={8},
pages={1033-1040},
abstract={This paper proposes a novel high-temperature superconducting dual-band bandpass filter (HTS-DBPF), that employs a broadside coupling structure, in which quarter-wavelength resonators are formed on opposite sides of each substrate. This structure provides a dual-band operation of the BPF and flexibility, in the sense of having a wide range in selecting two center passband frequencies of the HTS-DBPF. This paper employs the ratio of the lower and higher center passband frequencies, α, as a criterion for evaluating the flexibility. The obtained α ranges are from 1 to 4.7, which are the widest for DBPFs for mobile communications applications, to the best knowledge of the authors. This paper presents a 2.4-/2.9-GHz band HTS-DBPF, as an experimental example, using a YBCO film deposited on an MgO substrate. The measured frequency responses of the HTS-DBPF agree with the electromagnetic simulated results. Measurement and simulation results confirm that the proposed filter architecture is effective in configuring a DBPF that can set each center passband frequency widely.},
keywords={},
doi={10.1587/transele.E96.C.1033},
ISSN={1745-1353},
month={August},}

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TY - JOUR
TI - Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter
T2 - IEICE TRANSACTIONS on Electronics
SP - 1033
EP - 1040
AU - Yuta TAKAGI
AU - Kei SATOH
AU - Daisuke KOIZUMI
AU - Shoichi NARAHASHI
PY - 2013
DO - 10.1587/transele.E96.C.1033
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2013
AB - This paper proposes a novel high-temperature superconducting dual-band bandpass filter (HTS-DBPF), that employs a broadside coupling structure, in which quarter-wavelength resonators are formed on opposite sides of each substrate. This structure provides a dual-band operation of the BPF and flexibility, in the sense of having a wide range in selecting two center passband frequencies of the HTS-DBPF. This paper employs the ratio of the lower and higher center passband frequencies, α, as a criterion for evaluating the flexibility. The obtained α ranges are from 1 to 4.7, which are the widest for DBPFs for mobile communications applications, to the best knowledge of the authors. This paper presents a 2.4-/2.9-GHz band HTS-DBPF, as an experimental example, using a YBCO film deposited on an MgO substrate. The measured frequency responses of the HTS-DBPF agree with the electromagnetic simulated results. Measurement and simulation results confirm that the proposed filter architecture is effective in configuring a DBPF that can set each center passband frequency widely.
ER -