Title:
通信機
Document Type and Number:
Japanese Patent JP6920605
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve demultiplexing accuracy in a communication apparatus that performs transmission/reception in a plurality of frequency bands.SOLUTION: A communication apparatus 1 comprises an antenna 11, a first demultiplexing circuit 12, a second demultiplexing circuit 13, a third demultiplexing circuit 14, a first communication unit 15 and a second communication unit 16. The first demultiplexing circuit 12 and the second demultiplexing circuit 13 are provided in parallel between the antenna 11 and the first communication unit 15. The third demultiplexing circuit 14 is provided between the antenna 11 and the second communication unit 16. The first demultiplexing circuit 12 passes a signal included in a first frequency band among reception signals received at the antenna 11 and then branched and inputted, and transmission signals transmitted from the first communication unit 15 and then branched and inputted. The second demultiplexing circuit 13 passes a signal included in a second frequency band among the reception signals and the transmission signals. The third demultiplexing circuit 14 passes a signal included in a third frequency band among the reception signals.SELECTED DRAWING: Figure 1
Inventors:
Toshio Takaoka
Application Number:
JP2016253602A
Publication Date:
August 18, 2021
Filing Date:
December 27, 2016
Export Citation:
Assignee:
Icom Co., Ltd.
International Classes:
H04B1/00; H03H7/46; H04B1/52
Domestic Patent References:
| JP2004526337A |
Foreign References:
| WO2005088833A1 |
Attorney, Agent or Firm:
Kimura Mitsuru
Koji Yashima
Tomomi Osaka
Kazuhiro Miyamoto
Koji Yashima
Tomomi Osaka
Kazuhiro Miyamoto