Title:
ANTENNA UNIT AND WATCH-TYPE RADIO EQUIPMENT USING IT
Document Type and Number:
Japanese Patent JP2001211018
Kind Code:
A
Abstract:
To provide an antenna unit with a simple structure of the feeding system assuring the high antenna capability both when affected by human body in calling and when not used in waiting.
An loop antenna 1 with a circumference of approximately one wavelength is arranged along the periphery of an open-close lid 5, and one end of the loop antenna 1 is connected to an earth plate 2 at an earth point 3. A feeding part 4 inserted between the other end of the loop antenna 1 and the earth plate 2 performs unbalanced feeding to the loop antenna 1 on the earth plate 2.
Inventors:
SAITO YUTAKA
NAGANO ISAMU
HARUKI HIROSHI
NAGANO ISAMU
HARUKI HIROSHI
Application Number:
JP2000019425A
Publication Date:
August 03, 2001
Filing Date:
January 28, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01Q1/24; H01Q1/08; H01Q1/27; H01Q1/44; H01Q7/00; H04W88/02; (IPC1-7): H01Q1/24; H01Q7/00; H04Q7/32
Attorney, Agent or Firm:
Saito Isao
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