Title:
RADIO APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/021105
Kind Code:
A1
Abstract:
A radio apparatus comprises: an antenna (151) for transmitting/receiving radio signals; and a matching unit (152) having a function of adjusting phase/matching between the antenna (151) and a transmission/reception circuit (154). In order to change the matching status of the antenna (151), the radio apparatus further comprises: a changeover switch (156); a matching adjustment unit (153); and a level detection unit (158) included in the transmission/reception circuit (154) for detecting the reception level of a radio signal received via the antenna (151). The radio apparatus is still further constituted by a determination unit (155) for changing, in accordance with the level outputted from the level detection unit (158), the setting of the changeover switch (156) of the matching adjustment unit (153). In this way, a radio apparatus capable of providing an optimum radio performance at the time of installation thereof or even thereafter can be achieved.
Inventors:
WATANABE TAKASHI
YOSHIKAWA YOSHISHIGE
SATO KENJI
YOSHIKAWA YOSHISHIGE
SATO KENJI
Application Number:
PCT/JP2015/003161
Publication Date:
February 11, 2016
Filing Date:
June 24, 2015
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04B1/04
Foreign References:
| JP2011009862A | 2011-01-13 | |||
| JP2006325163A | 2006-11-30 | |||
| JP2006270366A | 2006-10-05 |
Other References:
See also references of EP 3179635A4
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
Fujii Kentaro (JP)
Download PDF:
Previous Patent: CONTACTLESS PRESSURE SWITCH
Next Patent: SPEAKER SYSTEM AND ELECTRONIC DEVICE USING SAME
Next Patent: SPEAKER SYSTEM AND ELECTRONIC DEVICE USING SAME