Transmit/receive distributed antenna systems
First Claim
1. A distributed antenna device comprising:
- a plurality of transmit antenna elements;
a plurality of receive antenna elements;
a plurality of power amplifiers, a power amplifier being operatively coupled with each of said transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element; and
at least one low noise amplifier for receiving and amplifying signals from at least one of said receive antenna elements;
each said power amplifier comprising a relatively low power, relatively low cost per watt linear power amplifier; and
said device being configured such that said transmit antenna elements and said power amplifiers coupled thereto, and said receive antenna elements and said at least one low noise amplifier coupled thereto are continuously active and capable of simultaneous respective transmit and receive operations;
wherein said receive antenna elements are in a first array and said transmit antenna elements are in a second array spaced apart from and parallel to said first array; and
further including an electrically conductive center strip element positioned between the first and second arrays.
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Accused Products
Abstract
A distributed antenna device includes a plurality of transmit antenna elements, a plurality of receive antenna elements and a plurality of amplifiers. One of the amplifiers is a power amplifier operatively coupled with each of the transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element. At least one of the amplifiers is a low noise amplifier and is built into the distributed antenna device for receiving and amplifying signals from at least one of the receive antenna elements. Each power amplifier is a relatively low power, relatively low cost per watt linear amplifier chip.
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Citations
23 Claims
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1. A distributed antenna device comprising:
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a plurality of transmit antenna elements;
a plurality of receive antenna elements;
a plurality of power amplifiers, a power amplifier being operatively coupled with each of said transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element; and
at least one low noise amplifier for receiving and amplifying signals from at least one of said receive antenna elements;
each said power amplifier comprising a relatively low power, relatively low cost per watt linear power amplifier; and
said device being configured such that said transmit antenna elements and said power amplifiers coupled thereto, and said receive antenna elements and said at least one low noise amplifier coupled thereto are continuously active and capable of simultaneous respective transmit and receive operations;
wherein said receive antenna elements are in a first array and said transmit antenna elements are in a second array spaced apart from and parallel to said first array; and
further including an electrically conductive center strip element positioned between the first and second arrays. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A distributed antenna device comprising:
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a plurality of transmit antenna elements;
a plurality of receive antenna elements; and
a plurality of power amplifiers, a power amplifier being operatively coupled with each of said transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element; and
at least one low noise amplifier for receiving and amplifying signals from at least one of said receive antenna elements;
each said power amplifier comprising a relatively low power, relatively low cost per watt linear power amplifier; and
said device being configured such that said transmit antenna elements and said power amplifiers coupled thereto, and said receive antenna elements and said at least one low noise amplifier coupled thereto are continuously active and capable of simultaneous respective transmit and receive operations;
wherein said transmit antenna elements and said receive antenna elements are arranged in a single linear array in alternating order. - View Dependent Claims (17, 18)
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19. A distributed antenna device comprising:
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a plurality of transmit antenna elements;
a plurality of receive antenna elements; and
a plurality of power amplifiers, a power amplifier being operatively coupled with each of said transmit antenna elements and mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element; and
at least one low noise amplifier for receiving and amplifying signals from at least one of said receive antenna elements;
each said power amplifier comprising a relatively low power, relatively low cost per watt linear power amplifier; and
said device being configured such that said transmit antenna elements and said power amplifiers coupled thereto, and said receive antenna elements and said at least one low noise amplifier coupled thereto are continuously active and capable of simultaneous respective transmit and receive operations;
wherein said transmit antenna elements and said receive antenna elements comprise separate arrays of antenna elements and wherein said transmit antenna elements are polarized in one polarization and the receive antenna elements are polarized orthogonally to the polarization of said transmit antenna elements; and
further including an electrically conductive center strip element positioned between the separate arrays.
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20. A method of operating a distributed antenna comprising:
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arranging a plurality of transmit antenna elements in a first array;
arranging a plurality of receive antenna elements in a second array that is spaced apart from and parallel to said first array;
coupling a power amplifier with each of said transmit antenna elements mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element;
providing at least one low noise amplifier built into said distributed antenna for receiving and amplifying signals from at least one of said receive antenna elements;
simultaneously transmitting from said transmit antenna elements and receiving from said receive antenna elements; and
positioning an electrically conductive center strip element between the first and second arrays. - View Dependent Claims (21)
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22. A method of operating a distributed antenna comprising:
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arranging a plurality of transmit antenna elements in an array;
arranging a plurality of receive antenna elements in an array;
coupling a power amplifier with each of said transmit antenna elements mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element;
providing at least one low noise amplifier built into said distributed antenna for receiving and amplifying signals from at least one of said receive antenna elements;
simultaneously transmitting from said transmit antenna elements and receiving from said receive antenna elements; and
further including arranging said transmit antenna elements and said receive antenna elements in a single array in alternating order.
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23. A method of operating a distributed antenna comprising:
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arranging a plurality of transmit antenna elements in a first array;
arranging a plurality of receive antenna elements in a second array that is spaced apart from and parallel to the first array;
positioning an electrically conductive center strip element between the first and second arrays;
coupling a power amplifier with each of said transmit antenna elements mounted closely adjacent to the associated transmit antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element;
providing at least one low noise amplifier built into said distributed antenna for receiving and amplifying signals from at least one of said receive antenna elements;
simultaneously transmitting from said transmit antenna elements and receiving from said receive antenna elements; and
further including polarizing said transmit antenna elements in one polarization and polarizing the receive antenna elements orthogonally to the polarization of said transmit antenna elements.
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Specification