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US5907264A Power recycling for modulating array transmitters 失效
用于调制阵列发射器的电力回收

Power recycling for modulating array transmitters
摘要:
A modulating array transmitter that employs a power recycling method and power recovery circuit. The modulating array transmitter uses a plurality of multiphase power stages to generate a multi-point QAM constellation. Outputs of the plurality of multiphase power stages are combined in an output power combiner. The output power combiner uses terminating resistors on its difference power port(s). Using the present invention, power normally dissipated in the terminating resistors is recovered. Instead of dissipating this difference RF power, the present invention converts this power to DC power using rectifiers of the power recovery circuit. The rectified DC power may be used to supplement the DC power required for power amplifiers in the multiphase power stages. In this manner, the difference power is "recycled" and thus may be reused.
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