2000-349680 is referenced by 101 patents.

PROBLEM TO BE SOLVED: To miniaturize the transmitter-receiver itself, to simplify the structure and to reduce the manufacture cost by realizing sufficient transmission reception isolation in spite of the simple configuration.SOLUTION: A transmission section 18 having a transmission filter section 14 and a transmission antenna section 16 connected to the transmission filter section 14 and a reception section 24 consisting of a reception filter section 20 and a reception antenna section 22 connected to the reception filter section 20 are integrally formed on a dielectric board 12. The transmission filter section 14 has a configuration where resonance elements 30a-30c are formed respectively in parallel, and the transmission antenna section 16 has an antenna 32 formed with an electrode film on an upper face of the dielectric board 12. The reception filter section 20 has a configuration where resonance elements 34a-34c are formed respectively in parallel, and the reception antenna section 22 has an antenna 36 formed with an electrode film on an upper face of the dielectric board 12.

Title
Transmitter-receiver
Application Number
2000-074376
Publication Number
2000-349680
Application Date
March 16, 2000
Publication Date
December 15, 2000
Inventor
Arai Hiroyuki
Mizuno Kazuyuki
Hirai Takami
Mizutani Yasuhiko
Assignee
Arai Hiroyuki
Ngk Insulators
IPC
H05K 03/46
H01Q 23/00
H01Q 01/52
H01Q 01/38
H01P 11/00
H01P 01/203
H04B 01/50