发明名称 |
Method and apparatus for a high isolation dual port antenna system |
摘要 |
An embodiment of a dual port antenna system includes a balanced 90° hybrid coupler integrated with a crossed-field antenna to provide stable high isolation between the two input ports of the system. Unlike conventional antennas, the crossed-field antenna is made up of two radiating elements separately fed at a phase difference of 90°. This allows all of the power from the two transmitters to be coupled to the antenna via the hybrid coupler. A balanced 90° hybrid coupler provides isolation between the two ports of the system by matching the electrical characteristics of the antenna. The isolation between ports provided by the balanced 90° hybrid coupler is approximately 35-40 db which is sufficient to allow the independent operation of transceivers connected to the input ports. The crossed-field antenna exhibits loose electrical coupling so that the electrical characteristics remain stable and sufficiently high isolation between input ports is maintained.
|
申请公布号 |
US6608602(B2) |
申请公布日期 |
2003.08.19 |
申请号 |
US20010005738 |
申请日期 |
2001.11.06 |
申请人 |
INTEL CORPORATION |
发明人 |
WALTHO ALAN E.;SCHIFFER JEFFREY L. |
分类号 |
H01Q1/50;H01Q21/00;H01Q21/29;(IPC1-7):H01Q21/00 |
主分类号 |
H01Q1/50 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|