Telecommunications antenna
An antenna system is comprised of a plurality of independently constructed and operated antenna units, upon which are mounted a plurality of transmit and receive antenna pairs. This structure provides a means for the antenna system to be arranged to provide substantially hemispherical radio coverage...
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| Main Authors | , , , |
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| Format | Patent |
| Language | English |
| Published |
19.01.1999
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| Edition | 6 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | An antenna system is comprised of a plurality of independently constructed and operated antenna units, upon which are mounted a plurality of transmit and receive antenna pairs. This structure provides a means for the antenna system to be arranged to provide substantially hemispherical radio coverage. By adjusting the phase of each version of a radio signal to the transmitter or received, the signal may be formed into a beam according to known techniques of directional beam forming providing the antenna system with directional gain. Additionally, using a plurality of transmit and receive antenna pairs reduces the energy transmitted by each transmit antenna alone to a level which permits a branch line coupler to be sufficient to orthogonally polarize the transmitted and received radio signals negating the requirement for the duplexing filter for duplex operation. |
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| AbstractList | An antenna system is comprised of a plurality of independently constructed and operated antenna units, upon which are mounted a plurality of transmit and receive antenna pairs. This structure provides a means for the antenna system to be arranged to provide substantially hemispherical radio coverage. By adjusting the phase of each version of a radio signal to the transmitter or received, the signal may be formed into a beam according to known techniques of directional beam forming providing the antenna system with directional gain. Additionally, using a plurality of transmit and receive antenna pairs reduces the energy transmitted by each transmit antenna alone to a level which permits a branch line coupler to be sufficient to orthogonally polarize the transmitted and received radio signals negating the requirement for the duplexing filter for duplex operation. |
| Author | ROBERTS; ALBERT KESTER WRIGHT; PETER JOHN TARRAN; CHRISTOPHER JOHN GREEN; CHARLES RALPH |
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| Notes | Application Number: US19960726665 |
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| RelatedCompanies | ROKE MANOR RESEARCH LIMITED |
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| Snippet | An antenna system is comprised of a plurality of independently constructed and operated antenna units, upon which are mounted a plurality of transmit and... |
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| SubjectTerms | ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRICITY |
| Title | Telecommunications antenna |
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