Title:
電界効果トランジスタを含むアンテナスイッチ
Document Type and Number:
Japanese Patent JP4308251
Kind Code:
B2
Abstract:
The present invention provides a transceiver circuit that includes a transmission amplifier coupled with an antenna input/output node. The transmission amplifier is configured to amplify communications to be transmitted from the transceiver circuit. The transceiver circuit further includes a receiver and a field effect transistor. The receiver includes a receiver input coupled with the antenna input/output node. The field effect transistor is coupled between the receiver input and an electrical reference. The field effect transistor is configured to provide an open circuit when communications are received at the receiver input and to provide a closed circuit when communications are not being received at the receiver input.
Inventors:
Old Thunder, Jesper
Brandt, Per-Orff
Brandt, Per-Orff
Application Number:
JP2006504490A
Publication Date:
August 05, 2009
Filing Date:
March 01, 2004
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
H04B1/44; H04B1/48; H04B1/40
Foreign References:
| US6332071 | ||||
| EP0641090B1 | ||||
| US5442812 | ||||
| US5969561 | ||||
| US20020006810 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama