发明授权
- 专利标题: Power recycling for modulating array transmitters
- 专利标题(中): 用于调制阵列发射器的电力回收
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申请号: US30491申请日: 1998-02-25
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公开(公告)号: US5907264A公开(公告)日: 1999-05-25
- 发明人: David Feldman
- 申请人: David Feldman
- 申请人地址: MD Bethesda
- 专利权人: Lockheed Martin Corporation
- 当前专利权人: Lockheed Martin Corporation
- 当前专利权人地址: MD Bethesda
- 主分类号: H04L27/36
- IPC分类号: H04L27/36 ; H03C5/00
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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