Title:
ANTENNA DEVICE AND COMMUNICATIONS TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/014939
Kind Code:
A1
Abstract:
Disclosed are an antenna device and a communications terminal device with great freedom of radiation plate shape, no requirement for high positioning precision in the positional relationship between radiation plates and coil conductors, and little susceptibility to influence from metal items in the vicinity, wherein: a current (i10) is induced to a first booster conductor (41) by a current (i0) that flows to a coil conductor in a power-feed antenna (30) and said current (i10) flows around the first booster conductor (41); a current (i2) is induced to a second booster conductor (42) by the current (i0) that flows to the coil conductor in the power-feed antenna (30) and said current (i2) flows around the second booster conductor (42); and a current (i12) is induced to the first booster conductor (41) by the current (i2) that flows to the second booster conductor (42) and said current (i12) flows around the first booster conductor (41).
More Like This:
Inventors:
YOSUI Kuniaki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2011/067127
Publication Date:
February 02, 2012
Filing Date:
July 27, 2011
Export Citation:
Assignee:
Murata Manufacturing Co., Ltd. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
株式会社村田製作所 (〒55 京都府長岡京市東神足１丁目１０番１号 Kyoto, 〒6178555, JP)
International Classes:
H01Q7/00; H01Q1/00; H04M1/02
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (1-4-34, Noninbashi Chuo-ku,,Osaka-sh, Osaka 11, 〒5400011, JP)
Download PDF:
Claims: