A low cost Transmit/Receive module for the Space Ground Link Subsystem, SGLS, has been designed and manufactured for the next generation of Phase Array Antenna for the Air force Satellite Control Network, AFSCN. Each Transmit/Receive module consists of four channels comprising of two receive channels and two transmit channels. The module consists of high selectivity ceramic bandpass filters, polarization selection, four 4-bit phase shifters, four 5 bit digital attenuators, dual low noise amplifiers, and dual power amplifiers, capable of transmitting a minimum 1-watt per output per channel. The RF portion of the module utilizes ground coplaner waveguide structure. The module is designed for Hot-condition replacement and has active bias network for the high efficiency GaAs power amplifiers. To meet the cost objectives, the RF connectors have been designed for insertion into beam forming structure using novel connection format and making DC and RF signals availability on the same side of the module. The control of the T/R module is connected via single Field Programmable Gate Array, FPGA, through a GPIB computer interface. The paper will present the unique aspects of the design, the cost analysis, challenges, and unique interboard connectivity.
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机译：已为空军卫星控制网络AFSCN的下一代相控阵天线设计并制造了用于空间地面链路子系统SGLS的低成本发送/接收模块。每个发送/接收模块由四个通道组成，四个通道包括两个接收通道和两个发送通道。该模块由高选择性陶瓷带通滤波器，极化选择，四个4位移相器，四个5位数字衰减器，双路低噪声放大器和双路功率放大器组成，每个通道每路输出的最小输出功率为1瓦。模块的RF部分利用接地共面波导结构。该模块专为热条件更换而设计，并具有用于高效GaAs功率放大器的有源偏置网络。为了满足成本目标，已经设计了RF连接器，可以使用新颖的连接格式将其插入波束形成结构，并在模块的同一侧提供DC和RF信号。 T / R模块的控制通过单个现场可编程门阵列FPGA通过GPIB计算机接口连接。本文将介绍设计的独特方面，成本分析，挑战以及独特的板间连接性。
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