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US 6,934,511 B1Granted
Integrated repeater
AssigneeAndrew Corporation
InventorsBreck W. Lovinggood, Mano D. Judd, William P. Kuiper
Life of this patent
Estimating the term…
Abstract
An integrated repeater includes a housing having opposing sides, a donor antenna mounted on one of the opposing sides, a null antenna mounted on the other of the opposing sides, and repeater electronics mounted in the housing and operatively interconnecting the donor antenna and the null antenna. The repeater electronics include a beamforming arrangement for creating a desired antenna pattern of the donor antenna relative to a base station and a desired antenna pattern of the null antenna relative to subscriber equipment, and interference cancellation electronics for cancelling interference feedback signals between the donor antenna and the null antenna in both an uplink path and a downlink path.
Claims82
An integrated repeater comprising:
- a housing having opposing sides;
- a donor antenna mounted closely adjacent to one of the opposing sides of said housing;
- a null antenna mounted closely adjacent to the other of said opposing sides of said housing;
- repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- and
- a beamforming arrangement for creating a desired antenna pattern of said donor antenna and a desired antenna pattern of said null antenna.
3 more elements
An integrated repeater comprising:
- a housing having opposing sides;
- a donor antenna mounted closely adjacent to one of the opposing sides of said housing;
- a null antenna mounted closely adjacent to the other of said opposing sides of said housing;
- repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- and
- said repeater electronics including an interference cancellation circuit for cancelling interference feedback signals between said donor antenna and said null antenna in both an uplink path and a downlink antenna.
3 more elements
A method of repeating a radio frequency signal comprising:
- receiving said radio frequency signal at one of a donor antenna mounted on one of opposing sides of a housing and a null antenna mounted on the other of said opposing sides of said housing;
- routing said signal through repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- transmitting said radio frequency signal from the other of said donor and null antennas;
- and
- beamforming for a desired antenna pattern of said donor antenna and a desired antenna pattern of said null antenna, wherein said beamforming comprises selecting the lengths of a plurality of striplines coupled respectively with the antennas elements of the donor antenna array and null antenna array for variable stripline delay and RF switching said striplines.
2 more elements
A method of repeating a radio frequency signal comprising:
- receiving said radio frequency signal at one of a donor antenna mounted on one of opposing sides of a housing and a null antenna mounted on the other of said opposing sides of said housing;
- routing said signal through repeater electronics mounted in said housing operatively interconnecting said donor antenna and said null antenna;
- transmitting said radio frequency signal from the other of said donor and null antennas;
- and
- cancelling interference feedback signals between said donor antenna and said null antenna in both an uplink path and a downlink path.
2 more elements
A method of repeating a radio frequency signal comprising:
- receiving said radio frequency signal to one of a donor antenna mounted on one of opposing sides of a housing and a null antenna mounted on the other of said opposing sides of said housing, wherein said donor antenna and said null antenna each comprise an antenna array having a plurality of antenna elements;
- routing said signal through repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- transmitting said radio frequency signal from the other of said donor and null antennas;
- and
- beamforming for a desired antenna pattern of said donor antenna and a desired antenna pattern of said null antenna, wherein said beamforming comprises operating a Butler matrix comprising a part of said repeater electronics and operatively coupled with each of said donor antenna and said null antenna based upon angle and elevation information stored in a memory.
2 more elements
A method of repeating a radio frequency signal comprising:
- receiving said radio frequency signal at one of a donor antenna mounted on one of opposing sides of a housing and a null antenna mounted on the other of said opposing sides of said housing, wherein said donor antenna and said null antenna each comprise a relatively flat antenna face having one or more antenna elements mounted thereon;
- routing said signal through repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- transmitting said radio frequency signal from the other of said donor and null antennas;
- beamforming for a desired antenna pattern of said donor antenna and a desired antenna pattern of said null antenna;
- and
- reducing coupling between said donor antenna and said null antenna using a plurality of radio frequency chokes surrounding said antenna face of each of said donor antenna and said null antenna.
3 more elements
A method of repeating a radio frequency signal comprising:
- receiving said radio frequency signal at one of a donor antenna mounted on one of opposing sides of a housing and a null antenna mounted on the other of said opposing sides of said housing, wherein said donor antenna and said null antenna each comprise a relatively flat antenna face having one or more antenna elements mounted thereon;
- routing said signal through repeater electronics mounted in said housing and operatively interconnecting said donor antenna and said null antenna;
- transmitting said radio frequency signal from the other of said donor and null antennas;
- beamforming for a desired antenna pattern of said donor antenna and a desired antenna pattern of said null antenna;
- and
- reducing coupling between said donor antenna and said null antenna using a plurality of radio frequency chokes surrounding a peripheral edge surface defined by each of said donor antenna and said null antenna.
3 more elements
Dependencies are inferred from the claim text.