Redundant linear power amplifier system
First Claim
1. A redundant linear power amplifier system, comprising:
- a wideband exciter for outputting a user signal;
a splitter for receiving the output user signal and splitting the user signal into two split signals;
at least two linear power amplifiers, each linear power amplifier having an input for receiving one of the split signals and an output for outputting corresponding amplified signals; and
at least two antennas, each antenna having an input for receiving the amplified signal from the linear amplifier output and transmitting the received signal.
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Accused Products
Abstract
A redundant linear power amplifier (LPA) system is provided for minimizing the loss of power output during malfunction conditions. The redundant LPA system includes a transmitter (102) with redundant LPA units (110, 112) for providing spatial combining redundancy and transmitter polarization diversity. Each LPA unit (110, 112) receives an input signal. The output from one of the LPA units (110) is connected to an antenna (120) and the output from the second LPA unit (112) is phase shifted (117) and then connected to a second antenna (122). Alternatively, the outputs from the LPA units (110, 112) are input into a quadrature hybrid (126) and the output (128) from a first port (131) of the quadrature hybrid (126) is connected to the first antenna (120) and the output (130) from a second quadrature hybrid port (133) is phase shifted (117) and connected to the second antenna (122).
24 Citations
20 Claims
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1. A redundant linear power amplifier system, comprising:
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a wideband exciter for outputting a user signal;
a splitter for receiving the output user signal and splitting the user signal into two split signals;
at least two linear power amplifiers, each linear power amplifier having an input for receiving one of the split signals and an output for outputting corresponding amplified signals; and
at least two antennas, each antenna having an input for receiving the amplified signal from the linear amplifier output and transmitting the received signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A redundant linear power amplifier system, comprising:
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at least two transmitter units for transmitting user signals;
a quadrature hybrid have a pair of inputs for receiving and combining the signals from the two transmitter units and a pair of outputs for outputting a pair of signals;
at least two antennas for receiving and transmitting the signal input into each of the antennas from the quadrature hybrid outputs. - View Dependent Claims (10, 11, 12)
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13. A method for providing redundancy in a linear power amplifier system, comprising the steps of:
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receiving at least one user signal;
splitting the received signal into two signals;
inputting the split signals into a pair of linear power amplifiers and outputting corresponding amplified signals; and
feeding the amplified signal into two antennas and transmitting the received signal. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for providing redundancy in a linear power amplifier system, comprising the steps of:
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receiving a pair of input signals;
inputting the pair of received input signals into a pair of linear power amplifiers and outputting corresponding amplified signals; and
feeding the amplified signal into two antennas and transmitting the received signal. - View Dependent Claims (20)
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Specification