发明名称 |
Polarization diverse antenna for portable communication devices |
摘要 |
A communications card having an antenna assembly providing polarization diversity for use with a portable computer is provided. The antenna assembly comprises two folded antennas, which may be dipoles or slot radiators, that are disposed orthogonally to one another to provide polarization diversity. Signals are carried to and from the antenna by microstrip feed lines. The microstrip lines are placed off center along each antenna slot to establish an acceptable impedance match for the antenna. The feed lines are coupled to the communications card by way of coaxial cables. The antenna assembly is coupled with the communications card in a hinged arrangement thus allowing for spatial redirection of the antenna, if desired.
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申请公布号 |
US6031503(A) |
申请公布日期 |
2000.02.29 |
申请号 |
US19970803478 |
申请日期 |
1997.02.20 |
申请人 |
RAYTHEON COMPANY |
发明人 |
PREISS, II, JOSEPH A.;MCELROY, TERRY L.;VAN DOREN, ARNOLD E.;DONALDSON, STEPHEN R.;BELTRAN, FERNANDO |
分类号 |
G06K19/077;H01Q1/22;H01Q13/10;H01Q13/16;H01Q21/24;H01Q21/28;H04B1/38;H04B7/08;(IPC1-7):H01Q13/10;H01Q1/24 |
主分类号 |
G06K19/077 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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