Title:
ANTENNA MATCHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/013765
Kind Code:
A1
Abstract:
In order to conduct impedance matching in such a manner that transmission losses are less than or equal to a prescribed value for frequency bands of communication signals contained in a wide frequency band, an antenna matching device (10) is provided with an antenna-side terminal (PANT) connected to an antenna (101), and a radio frequency (RF)-side terminal (PRF) connected to an RF circuit (102). The antenna-side terminal (PANT) and the RF-side terminal (PRF) are connected via an inductor (11) alone as a first transmission path (111). The antenna-side terminal (PANT) and the RF-side terminal (PRF) are connected via a switch (12) alone as a second transmission path (112). The switch (12) is a single-pole single-throw (SPST) switch, and the first transmission path (111) and the second transmission path (112) are selected by connecting or disconnecting the switch (12) according to the frequency of a high-frequency signal.
Inventors:
IWANAGA MINORU (JP)
Application Number:
PCT/JP2013/061145
Publication Date:
January 23, 2014
Filing Date:
April 15, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q1/50; H01P1/10; H03H7/38
Foreign References:
| JP2008154107A | 2008-07-03 | |||
| JP2009253945A | 2009-10-29 | |||
| JP2004064604A | 2004-02-26 | |||
| JP2000278168A | 2000-10-06 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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