Compact Tunable Isolator with a Variable Capacitor
Summary :
This paper presents a novel isolator that employs a varactor that tunes the operating frequency for use in future multi-band mobile handsets. The proposed isolator employs only one varactor for compactness and has a three-fold symmetric structure to reduce the parasitic reactance at each port. Analytical and experimental results clarify the tuning range of the proposed isolator. This paper presents the fundamental characteristics of the proposed isolator such as the insertion loss, isolation, and adjacent channel leakage ratio (ACLR) using a W-CDMA signal. The impact of the proposed isolator on the system performance is described based on experimental evaluation of the ACLR with a multi-band transmission system consisting of a power amplifier and the proposed isolator.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E96-C No.1 pp.84-92
- Publication Date
- 2013/01/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E96.C.84
- Type of Manuscript
- PAPER
- Category
- Microwaves, Millimeter-Waves
Authors
Keyword
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Takayuki FURUTA, Atsushi FUKUDA, Hiroshi OKAZAKI, Shoichi NARAHASHI, "Compact Tunable Isolator with a Variable Capacitor" in IEICE TRANSACTIONS on Electronics,
vol. E96-C, no. 1, pp. 84-92, January 2013, doi: 10.1587/transele.E96.C.84.
Abstract: This paper presents a novel isolator that employs a varactor that tunes the operating frequency for use in future multi-band mobile handsets. The proposed isolator employs only one varactor for compactness and has a three-fold symmetric structure to reduce the parasitic reactance at each port. Analytical and experimental results clarify the tuning range of the proposed isolator. This paper presents the fundamental characteristics of the proposed isolator such as the insertion loss, isolation, and adjacent channel leakage ratio (ACLR) using a W-CDMA signal. The impact of the proposed isolator on the system performance is described based on experimental evaluation of the ACLR with a multi-band transmission system consisting of a power amplifier and the proposed isolator.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.84/_p
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@ARTICLE{e96-c_1_84,
author={Takayuki FURUTA, Atsushi FUKUDA, Hiroshi OKAZAKI, Shoichi NARAHASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Compact Tunable Isolator with a Variable Capacitor},
year={2013},
volume={E96-C},
number={1},
pages={84-92},
abstract={This paper presents a novel isolator that employs a varactor that tunes the operating frequency for use in future multi-band mobile handsets. The proposed isolator employs only one varactor for compactness and has a three-fold symmetric structure to reduce the parasitic reactance at each port. Analytical and experimental results clarify the tuning range of the proposed isolator. This paper presents the fundamental characteristics of the proposed isolator such as the insertion loss, isolation, and adjacent channel leakage ratio (ACLR) using a W-CDMA signal. The impact of the proposed isolator on the system performance is described based on experimental evaluation of the ACLR with a multi-band transmission system consisting of a power amplifier and the proposed isolator.},
keywords={},
doi={10.1587/transele.E96.C.84},
ISSN={1745-1353},
month={January},}
Copy
TY - JOUR
TI - Compact Tunable Isolator with a Variable Capacitor
T2 - IEICE TRANSACTIONS on Electronics
SP - 84
EP - 92
AU - Takayuki FURUTA
AU - Atsushi FUKUDA
AU - Hiroshi OKAZAKI
AU - Shoichi NARAHASHI
PY - 2013
DO - 10.1587/transele.E96.C.84
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2013
AB - This paper presents a novel isolator that employs a varactor that tunes the operating frequency for use in future multi-band mobile handsets. The proposed isolator employs only one varactor for compactness and has a three-fold symmetric structure to reduce the parasitic reactance at each port. Analytical and experimental results clarify the tuning range of the proposed isolator. This paper presents the fundamental characteristics of the proposed isolator such as the insertion loss, isolation, and adjacent channel leakage ratio (ACLR) using a W-CDMA signal. The impact of the proposed isolator on the system performance is described based on experimental evaluation of the ACLR with a multi-band transmission system consisting of a power amplifier and the proposed isolator.
ER -
English
