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1. 发明授权

US08941536B2 Short-range homodyne radar system 有权
标题翻译：短距离零差雷达系统
公开(公告)号：US08941536B2
公开(公告)日：2015-01-27
申请号：US13286658
申请日：2011-11-01
申请人： Douglas W. White , Douglas M. Dugas
发明人： Douglas W. White , Douglas M. Dugas
IPC分类号： G01S13/00 , G01S7/03 , G01S13/536 , H01P5/18
CPC分类号： G01S7/03 , G01S13/536 , H01P5/185
摘要： A homodyne radar system includes an oscillator, an antenna, a low noise amplifier, a mixing subsystem and a directional coupler. The oscillator is configured to generate a transmit signal and a local oscillator signal. The antenna is configured to transmit the transmit signal and to receive a receive signal. The low noise amplifier is configured to amplify the receive signal. The mixing subsystem is configured to receive and mix the transmit signal and the receive signal to produce an output signal. The directional coupler is coupled to the antenna, the oscillator, the low noise amplifier and the mixing subsystem. The directional coupler is connected and configured to provide a low-loss transmission path from the antenna to the low noise amplifier and a high loss transmission path from the oscillator to the antenna.
摘要翻译：零差雷达系统包括振荡器，天线，低噪声放大器，混合子系统和定向耦合器。振荡器被配置为产生发送信号和本地振荡器信号。天线被配置为发送发射信号并接收接收信号。低噪声放大器被配置为放大接收信号。混合子系统被配置为接收和混合发射信号和接收信号以产生输出信号。定向耦合器耦合到天线，振荡器，低噪声放大器和混合子系统。定向耦合器被连接和配置为提供从天线到低噪声放大器的低损耗传输路径以及从振荡器到天线的高损耗传输路径。

2. 发明授权

US09083291B2 Low voltage high efficiency gallium arsenide power amplifier 有权
标题翻译：低电压高效砷化镓功率放大器
公开(公告)号：US09083291B2
公开(公告)日：2015-07-14
申请号：US13879507
申请日：2012-08-12
申请人： Robert J. Lender, Jr. , Douglas M. Dugas
发明人： Robert J. Lender, Jr. , Douglas M. Dugas
IPC分类号： H03F3/191 , H03F3/21 , H03F3/195 , H03F3/24
CPC分类号： H03F3/21 , H03F3/191 , H03F3/195 , H03F3/245
摘要： A low voltage, switch mode PHEMT power amplifier with a 0.1 μm gate length and a low loss, lumped element, output matching circuit is disclosed that provides high performance over a frequency range of 1.4 GHz-2.5 GHz. The amplifier makes use of monolithic circuit technology for the first stage and output transistor, and uses a printed circuit board with surface mount components for the output matching network. The power output of the power amplifier is stable over a range of 60 degrees centigrade, has high power efficiencies of 44-53% with greater than 2 watts output power over the frequency range of 1.4 GHz and 2.5 GHz. In addition, through drain voltage control, the output power can be varied over a wide range between about 0.8 to 2.5 watts while still maintaining a high efficiency in the range of 50±3%.
摘要翻译：公开了一种具有0.1μm栅极长度的低电压，开关模式PHEMT功率放大器和低损耗集总元件输出匹配电路，其在1.4GHz-2.5GHz的频率范围内提供高性能。放大器利用单片电路技术进行第一级和输出晶体管，并使用印刷电路板与表面贴装组件进行输出匹配网络。功率放大器的功率输出在60摄氏度的范围内稳定，具有44-53％的高功率效率，在1.4 GHz和2.5 GHz的频率范围内具有大于2瓦的输出功率。此外，通过漏极电压控制，输出功率可以在约0.8至2.5瓦特之间的宽范围内变化，同时仍保持在50±3％范围内的高效率。

3. 发明申请

US20130106648A1 SHORT-RANGE HOMODYNE RADAR SYSTEM 有权
标题翻译：短距离HOMODYNE雷达系统
公开(公告)号：US20130106648A1
公开(公告)日：2013-05-02
申请号：US13286658
申请日：2011-11-01
申请人： Douglas W. White , Douglas M. Dugas
发明人： Douglas W. White , Douglas M. Dugas
IPC分类号： G01S13/00
CPC分类号： G01S7/03 , G01S13/536 , H01P5/185
摘要： A homodyne radar system includes an oscillator, an antenna, a low noise amplifier, a mixing subsystem and a directional coupler. The oscillator is configured to generate a transmit signal and a local oscillator signal. The antenna is configured to transmit the transmit signal and to receive a receive signal. The low noise amplifier is configured to amplify the receive signal. The mixing subsystem is configured to receive and mix the transmit signal and the receive signal to produce an output signal. The directional coupler is coupled to the antenna, the oscillator, the low noise amplifier and the mixing subsystem. The directional coupler is connected and configured to provide a low-loss transmission path from the antenna to the low noise amplifier and a high loss transmission path from the oscillator to the antenna.
摘要翻译：零差雷达系统包括振荡器，天线，低噪声放大器，混合子系统和定向耦合器。振荡器被配置为产生发送信号和本地振荡器信号。天线被配置为发送发射信号并接收接收信号。低噪声放大器被配置为放大接收信号。混合子系统被配置为接收和混合发射信号和接收信号以产生输出信号。定向耦合器耦合到天线，振荡器，低噪声放大器和混合子系统。定向耦合器被连接和配置为提供从天线到低噪声放大器的低损耗传输路径以及从振荡器到天线的高损耗传输路径。

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