Title:
NON-RECIPROCAL CIRCUIT ELEMENT AND TRANSMITTER/RECEIVER APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/094256
Kind Code:
A1
Abstract:
The objective of the invention is to improve the isolation characteristic, broaden the relative bandwidth and stabilize the property in a non-reciprocal circuit element. A non-reciprocal circuit element includes a first center electrode (L1) and a second center electrode (L2) isolatedly cross each other on a ferrite to which a DC magnetic field is applied by an eternal magnet. One end (P1) of the first center electrode (L1) is connected to a first unbalanced input/output terminal (P3) and also connected to one (P5) of balanced input/output terminals, while the other end of the first center electrode (L1) is connected to the ground. One end (P2) of the second center electrode (L2) is connected to the other (P6) of the balanced input/output terminals and also connected to a second unbalanced input/output terminal (P4), while the other end of the second center electrode (L2) is connected to the ground. The one end (P1) of the first center electrode (L1) is connected to the ground via a first capacitance element (C1), while the one end (P2) of the second center electrode (L2) is connected to the ground via a second capacitance element (C2).
Inventors:
HASEGAWA TAKASHI (JP)
Application Number:
PCT/JP2012/073257
Publication Date:
June 27, 2013
Filing Date:
September 12, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
HASEGAWA TAKASHI (JP)
HASEGAWA TAKASHI (JP)
International Classes:
H01P5/10; H01P1/383; H04B1/40
Foreign References:
| JP2004282626A | 2004-10-07 | |||
| JP2002299915A | 2002-10-11 |
Attorney, Agent or Firm:
PROFIC PC (JP)
Patent business corporation pro フィック patent firm (JP)
Patent business corporation pro フィック patent firm (JP)
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