Title:
ANTENNA SYSTEM AND RADIO COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP3731691
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To allow the antenna system and radio communication equipment to conduct radio communication in an excellent state by avoiding an adverse effect due to fading with a simple configuration.
SOLUTION: Since production of a steady-state dead point is avoided by providing a directivity variable means that changes a directivity of an antenna 10 timewise in the case of sending/receiving a radio wave E1, radio communication is conducted in an excellent state. Thus, the antenna system and radio communication equipment are realized, where adverse effect due to fading is avoided with a simple configuration and radio communication is conducted in an excellent state.
Inventors:
Yoshiki Kanayama
Application Number:
JP10885097A
Publication Date:
January 05, 2006
Filing Date:
April 25, 1997
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H01Q3/12; H01Q19/26; H01Q3/18; H01Q3/20; H04B1/38; (IPC1-7): H01Q3/12; H01Q3/18; H01Q3/20; H01Q19/26; H04B1/38
Domestic Patent References:
JP62105612U | ||||
JP6303026A | ||||
JP60219836A | ||||
JP63046019A | ||||
JP62105612U | ||||
JP62105612U | ||||
JP320507U | ||||
JP5218723A | ||||
JP4227423B2 | ||||
JP623838U | ||||
JP2510071B2 | ||||
JP6213006U | ||||
JP51122846A | ||||
JP5369954A | ||||
JP5359939A | ||||
JP6212640B1 | ||||
JP63302883A | ||||
JP4129301A |
Attorney, Agent or Firm:
Keiki Tanabe
Previous Patent: ULTRASONIC WAVE PROBE
Next Patent: COOLING DEVICE FOR WATER-COOLED INTERNAL COMBUSTION ENGINE
Next Patent: COOLING DEVICE FOR WATER-COOLED INTERNAL COMBUSTION ENGINE