Active Control of RF Splitter Isolation by Superimposing Bias Current

Takanobu AOYAMA; Yoshiki SHIBATA; Tomohiko KANIE; Takashi TAKEO

doi:10.1587/transele.E95.C.1297

Active Control of RF Splitter Isolation by Superimposing Bias Current

Takanobu AOYAMA, Yoshiki SHIBATA, Tomohiko KANIE, Takashi TAKEO

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The authors propose a new method of controlling the isolation of an RF splitter. In the proposed method, a bias current is superimposed on an RF signal to change the permeability of the ferrite core used in the splitter's transformer. By doing this, the splitter isolation can be controlled. Experimental results have shown that superimposing a bias current of 500 mA improves device isolation by about 5 dB without affecting the loss characteristics.

Publication: IEICE TRANSACTIONS on Electronics Vol.E95-C No.7 pp.1297-1299

Publication Date: 2012/07/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E95.C.1297

Type of Manuscript: BRIEF PAPER

Category: Electronic Circuits

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Takanobu AOYAMA, Yoshiki SHIBATA, Tomohiko KANIE, Takashi TAKEO, "Active Control of RF Splitter Isolation by Superimposing Bias Current" in IEICE TRANSACTIONS on Electronics, vol. E95-C, no. 7, pp. 1297-1299, July 2012, doi: 10.1587/transele.E95.C.1297.
Abstract: The authors propose a new method of controlling the isolation of an RF splitter. In the proposed method, a bias current is superimposed on an RF signal to change the permeability of the ferrite core used in the splitter's transformer. By doing this, the splitter isolation can be controlled. Experimental results have shown that superimposing a bias current of 500 mA improves device isolation by about 5 dB without affecting the loss characteristics.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.1297/_p

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@ARTICLE{e95-c_7_1297,
author={Takanobu AOYAMA, Yoshiki SHIBATA, Tomohiko KANIE, Takashi TAKEO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Active Control of RF Splitter Isolation by Superimposing Bias Current},
year={2012},
volume={E95-C},
number={7},
pages={1297-1299},
abstract={The authors propose a new method of controlling the isolation of an RF splitter. In the proposed method, a bias current is superimposed on an RF signal to change the permeability of the ferrite core used in the splitter's transformer. By doing this, the splitter isolation can be controlled. Experimental results have shown that superimposing a bias current of 500 mA improves device isolation by about 5 dB without affecting the loss characteristics.},
keywords={},
doi={10.1587/transele.E95.C.1297},
ISSN={1745-1353},
month={July},}

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TY - JOUR
TI - Active Control of RF Splitter Isolation by Superimposing Bias Current
T2 - IEICE TRANSACTIONS on Electronics
SP - 1297
EP - 1299
AU - Takanobu AOYAMA
AU - Yoshiki SHIBATA
AU - Tomohiko KANIE
AU - Takashi TAKEO
PY - 2012
DO - 10.1587/transele.E95.C.1297
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2012
AB - The authors propose a new method of controlling the isolation of an RF splitter. In the proposed method, a bias current is superimposed on an RF signal to change the permeability of the ferrite core used in the splitter's transformer. By doing this, the splitter isolation can be controlled. Experimental results have shown that superimposing a bias current of 500 mA improves device isolation by about 5 dB without affecting the loss characteristics.
ER -