Title:
ANTENNA EQUIPMENT
Document Type and Number:
Japanese Patent JPH07263935
Kind Code:
A
Abstract:
PURPOSE: To secure the degree of sharpness of an antenna to improve the antenna radiation efficiency with respect to the antenna equipment using printed boards.
CONSTITUTION: Plural printed boards 30-1 to 30-n where antenna patterns 32-1 to 32-n are formed to have coil components are laminated to constitute the equipment. For example, spiral coil patterns 32-1 to 32-n are formed on printed boards 30-1 to 30-n, and start ends and terminal ends of coil patterns are connected in common to form a pair of antenna feed terminals 33 and 34. Thus, a sufficiently wide communication area is secured.
Inventors:
SHIMA YASUSHI
Application Number:
JP5338894A
Publication Date:
October 13, 1995
Filing Date:
March 24, 1994
Export Citation:
Assignee:
HOCHIKI CO
International Classes:
G06K7/10; G06K19/07; G07C9/00; H01Q1/32; H01Q1/36; H01Q1/38; E05B49/00; H01Q7/00; H01Q11/08; H01Q21/00; H02J50/00; H02J50/10; H04B1/59; (IPC1-7): H01Q1/36; E05B49/00; G06K19/07; H01Q7/00; H01Q21/00; H04B1/59
Attorney, Agent or Firm:
Susumu Takeuchi (1 person outside)