发明名称 |
Method and apparatus for mitigating interference from terrestrial broadcasts sharing the same channel with satellite broadcasts using an antenna with posterior sidelobes |
摘要 |
An apparatus for simultaneously receiving a first signal from a non-terrestrial source and a second signal from a terrestrial source on the same or overlapping channels using a receive antenna with posteriorly-directed sidelobes is disclosed. The apparatus comprises at least one terrestrial transmitter transmitting information on at least one frequency simultaneously usable by at least one satellite transmitting to a satellite receive antenna having a sensitivity characterizable by a primary sensitive axis directed substantially at satellite. The terrestrial transmitter includes a azimuthal gain characteristic directed substantially away from the Earth's Equator. In an alternative embodiment, the terrestrial transmitter is disposed at a location defining a vector angularly displaced from the primary sensitive axis by an angle of less than 90 degrees. A method of transmitting information is also disclosed. In this method the information is transmitted on at least one frequency simultaneously usable by at least one satellite transmitting to a satellite receive antenna having a sensitivity characterizable by a primary sensitive axis directed substantially at the satellite and a posterior secondary sensitive axis. The method is performed by transmitting the information from a terrestrially-based transmitter to a terrestrial receive antenna in a direction substantially away from the Equator.
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申请公布号 |
US2004235418(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040872810 |
申请日期 |
2004.06.21 |
申请人 |
ANDERSON PAUL R. |
发明人 |
ANDERSON PAUL R. |
分类号 |
H01Q1/52;H01Q3/26;H04B7/185;(IPC1-7):H04B7/15 |
主分类号 |
H01Q1/52 |
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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