【摘要】 本文面向低轨卫星通信，研制了一款基于多层低温共烧陶瓷（Law Temperature Co-fired Ceramics,LTCC）工艺的K波段四通道集成接收前端模块.该集成前端模块工作频段为17.7～20.2 GHz，腔体内集成了低噪声放大器、6位移相器、5位衰减器、串并转换器等MMIC芯片和多层陶瓷电容，功率合成器和低通滤波器等无源器件嵌入多层基板中，整体尺寸为28×28×1.35 mm3.每个通道的带内测试增益大于31.5 dB，噪声系数为1.7～1.9 dB，对28～30 GHz的发射频段具有大于61.5 dBc的抑制度，相位控制误差为4.7°，幅度控制误差为1 dB.该设计具有集成度高、增益高、抑制度高、噪声低等突出优点.更多还原

【Abstract】 In this paper, a K-band four-channel integrated receiving front-end module is developed using the multilayer low temperature co-fired ceramics(LTCC) technology for the application of low earth orbit satellite communication.The operating frequency is from 17.7 to 20.2GHz. MMIC chips, including low noise amplifiers,6 bit phase shifters,5 bit attenuators and series-parallel converters, and multilayer ceramic capacitors are mounted inside the cavity of the module while passive components, such as a power combiner and low-pass filters, are embedded into the multilayer substrate. The overall size of the module is 28×28×1.35mm~3. In measurements, the in-band channel gain is over 31.5dB, the noise figure is 1.7～1.9dB, and the suppression against the transmitting band of 28～30GHz is over 61.5dBc. The control errors of phase shift and attenuation amplitude are better than 4.7° and 1dB, respectively. It is demonstrated that our design has the advantages of high integration, high gain, high suppression and low noise.更多还原