Invention Grant
US08081062B2 Transmit/receive antenna system having offset feed points for high isolation
有权
发射/接收天线系统具有高隔离的补偿馈电点
- Patent Title: Transmit/receive antenna system having offset feed points for high isolation
- Patent Title (中): 发射/接收天线系统具有高隔离的补偿馈电点
-
Application No.: US12088567Application Date: 2005-12-29
-
Publication No.: US08081062B2Publication Date: 2011-12-20
- Inventor: Hae-Won Son , Won-Kyu Choi , Chan-Soo Shin , Gil-Young Choi , Cheol-Sig Pyo
- Applicant: Hae-Won Son , Won-Kyu Choi , Chan-Soo Shin , Gil-Young Choi , Cheol-Sig Pyo
- Applicant Address: KR Daejon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejon
- Agency: Rabin & Berdo, P.C.
- Priority: KR10-2005-0091562 20050929
- International Application: PCT/KR2005/004644 WO 20051229
- International Announcement: WO2007/037578 WO 20070405
- Main IPC: G08B25/10
- IPC: G08B25/10 ; H01Q21/00
Abstract:
Provided is an antenna system with high isolation. The high-isolation antenna has transmission ports of a transmission antenna and reception ports of a reception antenna highly isolated from each other by using quadrature hybrid couplers. The antenna system includes: a transmission antenna having two feed points for transmitting signals; a reception antenna having two feed points for receiving signals; a transmission hybrid coupler which is connected to the two feed points of the transmission antenna and transmits transmission signals which have a phase difference of 90° with each other; and a reception hybrid coupler which is connected to the two feed points of the reception antenna and receives reception signals which have a phase difference of 90° with each other. The signals leaking from the two feed points of the transmission antenna to the two feed points of the reception antenna are offset.
Public/Granted literature
- US20080309428A1 Antenna with High Isolation Public/Granted day:2008-12-18
Information query
