Title:
RADIO COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP3794897
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide radio communication equipment capable of preventing the deterioration of receiving characteristic due to an interference signal as the radio communication equipment for performing communication by using a reception frequency and a transmission frequency simultaneously.
SOLUTION: An interference signal cut-off circuit for cutting off the interference signal of a frequency nearly equal to the absolute value of the sum or difference of the reception frequency and the transmission frequency is provided between the input terminal of a reception part 5 and an antenna 1.
Inventors:
Miyagawa Yasushi
Kaoru Okabe
Tetsuo Onodera
Kaoru Okabe
Tetsuo Onodera
Application Number:
JP2000094223A
Publication Date:
July 12, 2006
Filing Date:
March 30, 2000
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H01Q1/24; H04B1/56; H04B1/10; H04B1/18; H04B1/48; H04B1/50; H04B1/52; (IPC1-7): H04B1/56; H01Q1/24; H04B1/10; H04B1/18; H04B1/48
Domestic Patent References:
| JP60214123A | ||||
| JP11186932A | ||||
| JP11261434A | ||||
| JP2000349508A | ||||
| JP9046764A |
Attorney, Agent or Firm:
Eisuke Fujimoto