Title:
【発明の名称】受信専用アンテナ及び送信専用アンテナを備えるデュアルバンド無線電話機
Document Type and Number:
Japanese Patent JP2003504916
Kind Code:
A
Abstract:
A dual band radio telephone with separate dual band, dual feed point transmit and receive antennas. The dual band radio telephone has two transceivers. Two feed points of the dual band, dual feed point receive antenna are coupled to respective receive branches of the two transceivers. Two feed points of the dual band, dual feed point transmit antenna are coupled to respective transmit branches of the two transceivers. Additionally, image reject band pass filters are coupled between the feed points of the dual band, dual feed point receive antenna and the respective receive branches. When the dual band, dual feed point transmit and receive antennas are spaced apart closely, the transmit branches comprise transmit filters coupled between transmit power amplifiers and the two feed points of the dual band transmit antenna.
Inventors:
Dvorkin Bradymir
Application Number:
JP2001508611A
Publication Date:
February 04, 2003
Filing Date:
June 26, 2000
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H04B1/40; (IPC1-7): H04B1/40
Attorney, Agent or Firm:
Susumu Tsugaru (1 person outside)