A New Design Concept for Balanced-Type SAW Filters Using a Common-Mode Signal Suppression Circuit
Summary :
A new design concept for a common-mode signal suppression circuit for a balanced-type filter has been investigated. The degradation mechanism of the balance characteristics was studied. The degradation is caused by the common-mode signals combined with the differential-mode signals in the balanced terminals. The concept employed is the reduction of the common-mode signal using a common-mode signal suppression circuit, connected to the balanced terminals. A serial resonance circuit is formed, in which the common-mode signals are shorted to ground. The circuit was applied to the balanced-type Surface Acoustic Wave (SAW) filter. The improvement in balance characteristics, without increasing in the insertion loss, was confirmed by experiments for Global System Mobile (GSM) applications.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E88-C No.1 pp.28-33
- Publication Date
- 2005/01/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietele/e88-c.1.28
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
- Category
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Hiroyuki NAKAMURA, Toshio ISHIZAKI, Toshifumi NAKATANI, Shigeru TSUZUKI, "A New Design Concept for Balanced-Type SAW Filters Using a Common-Mode Signal Suppression Circuit" in IEICE TRANSACTIONS on Electronics,
vol. E88-C, no. 1, pp. 28-33, January 2005, doi: 10.1093/ietele/e88-c.1.28.
Abstract: A new design concept for a common-mode signal suppression circuit for a balanced-type filter has been investigated. The degradation mechanism of the balance characteristics was studied. The degradation is caused by the common-mode signals combined with the differential-mode signals in the balanced terminals. The concept employed is the reduction of the common-mode signal using a common-mode signal suppression circuit, connected to the balanced terminals. A serial resonance circuit is formed, in which the common-mode signals are shorted to ground. The circuit was applied to the balanced-type Surface Acoustic Wave (SAW) filter. The improvement in balance characteristics, without increasing in the insertion loss, was confirmed by experiments for Global System Mobile (GSM) applications.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.1.28/_p
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@ARTICLE{e88-c_1_28,
author={Hiroyuki NAKAMURA, Toshio ISHIZAKI, Toshifumi NAKATANI, Shigeru TSUZUKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A New Design Concept for Balanced-Type SAW Filters Using a Common-Mode Signal Suppression Circuit},
year={2005},
volume={E88-C},
number={1},
pages={28-33},
abstract={A new design concept for a common-mode signal suppression circuit for a balanced-type filter has been investigated. The degradation mechanism of the balance characteristics was studied. The degradation is caused by the common-mode signals combined with the differential-mode signals in the balanced terminals. The concept employed is the reduction of the common-mode signal using a common-mode signal suppression circuit, connected to the balanced terminals. A serial resonance circuit is formed, in which the common-mode signals are shorted to ground. The circuit was applied to the balanced-type Surface Acoustic Wave (SAW) filter. The improvement in balance characteristics, without increasing in the insertion loss, was confirmed by experiments for Global System Mobile (GSM) applications.},
keywords={},
doi={10.1093/ietele/e88-c.1.28},
ISSN={},
month={January},}
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TY - JOUR
TI - A New Design Concept for Balanced-Type SAW Filters Using a Common-Mode Signal Suppression Circuit
T2 - IEICE TRANSACTIONS on Electronics
SP - 28
EP - 33
AU - Hiroyuki NAKAMURA
AU - Toshio ISHIZAKI
AU - Toshifumi NAKATANI
AU - Shigeru TSUZUKI
PY - 2005
DO - 10.1093/ietele/e88-c.1.28
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2005
AB - A new design concept for a common-mode signal suppression circuit for a balanced-type filter has been investigated. The degradation mechanism of the balance characteristics was studied. The degradation is caused by the common-mode signals combined with the differential-mode signals in the balanced terminals. The concept employed is the reduction of the common-mode signal using a common-mode signal suppression circuit, connected to the balanced terminals. A serial resonance circuit is formed, in which the common-mode signals are shorted to ground. The circuit was applied to the balanced-type Surface Acoustic Wave (SAW) filter. The improvement in balance characteristics, without increasing in the insertion loss, was confirmed by experiments for Global System Mobile (GSM) applications.
ER -
English
