一种用于卫星通信相控阵的高效功率BiCMOS ka波段发射前端

2020 IEEE/MTT-S International Microwave Symposium (IMS) Pub Date : 2020-08-01 DOI:10.1109/IMS30576.2020.9223834

Soroush Rasti-Boroujeni, A. Wyrzykowska, M. Mazaheri, A. Palizban, S. Ituah, A. El-Gouhary, Guoyan Chen, H. Gharaei-Garakani, M. Nezhad-Ahmadi, S. Safavi-Naeini

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引用次数: 0

摘要

提出了一种用于移动卫星通信相控阵的高效27-30 GHz 130nm BiCMOS发射机前端MMIC。该芯片由增益变化为15db的增益控制模块、400度移相器和高效两级功率放大器组成。该芯片的测量传感器增益为23 dB，在10.8 dBm时功耗为45 mW。在P_{1dB}$下，整个通道的功率附加效率(PAE)为26.7%。在400 MHz带宽64-QAM (1.8 Gbps)调制信号中，在$P_{out， $ avg}$为5.7 dBm， $PAE_{avg}$为12%时，测量到误差矢量幅度(EVM)为-29 dB。芯片的总尺寸为2.1×0.8 mm2。

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A Power Efficient BiCMOS Ka-Band Transmitter Front-End for SATCOM Phased-Arrays

A high efficiency 27–30 GHz 130nm BiCMOS transmitter front-end MMIC for mobile satellite communication phased-array is presented. The implemented chip consists of a gain control block with 15 dB gain variation, a 400 degree phase shifter and a high efficiency two stage power amplifier. The chip has a measured transducer gain of 23 dB and power consumption of 45 mW at $P_{1dB}$ of 10.8 dBm. The power added efficiency (PAE) of 26.7% is measured for the entire channel at $P_{1dB}$. An error vector magnitude (EVM) of -29 dB at $P_{out,avg}$ of 5.7 dBm and $PAE_{avg}$ of 12% is measured for a 400 MHz bandwidth 64-QAM (1.8 Gbps) modulated signal. The overall size of the chip is 2.1×0.8 mm2.

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2020 IEEE/MTT-S International Microwave Symposium (IMS)

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