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首页> 外文会议>European Microwave Conference vol.2; 20041011-14; Amsterdam(NL) >Multifunction GaAs MMIC Transmitter/Receiver for Onboard Satellite Equipment
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Multifunction GaAs MMIC Transmitter/Receiver for Onboard Satellite Equipment

机译：机载卫星设备多功能GaAs MMIC发送器/接收器

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摘要

This paper describes the development of a new GaAs MMIC to be used in transmit/receive modules for S band transponders. The IC, which includes five different functions, reduces the size of the system whilst maintaining and even improving system performance. Amplification, phase shifting, and mixing are some of the functions integrated in the same chip. The goal of the work is to reduce the number, size, and consequently, the cost of the circuitry currently in use through an European commercial Enhancement/Depletion (E/D) pHEMT process, compatible with low noise reception. A maximum conversion gain more than 54 dB has been achieved with a gain control more than 27 dB. A 0 dBm output power at 1dB compression point (P1dB) has been measured when a CW stimulus was used as input signal, while more than 35 dB of Adjacent Channel Power Ratio (ACPR) was tested for a BPSK input signal.
机译：本文介绍了一种新的GaAs MMIC的开发，该器件将用于S波段应答器的发送/接收模块。该IC包括五种不同的功能，可在保持甚至提高系统性能的同时减小系统尺寸。放大，相移和混合是集成在同一芯片中的一些功能。该工作的目标是通过与低噪声接收兼容的欧洲商业增强/耗尽（E / D）pHEMT工艺来减少当前使用的电路的数量，尺寸并因此减少其成本。增益控制超过27 dB时，可以实现超过54 dB的最大转换增益。当使用CW激励作为输入信号时，在1dB压缩点（P1dB）处已测量到0 dBm的输出功率，而对BPSK输入信号测试了超过35 dB的相邻信道功率比（ACPR）。

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