损耗补偿行波放大器的增益带宽调谐技术

2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2015-11-01 DOI:10.1109/IMOC.2015.7369067

P. V. Testa, C. Carta, F. Ellinger

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引用次数: 2

摘要

本文介绍了宽带损耗补偿行波放大器的增益和带宽控制技术。分布式放大器的性能通过两种方式进行调整:将晶体管的工作点从饱和改变为正向有源，以及调整放大器的损耗补偿。在现有的0.13 μm SiGe BiCMOS TWA上，实验验证了40 dB的增益调谐范围。在增益调谐期间，群延迟和输入输出回波损耗在170 GHz放大器带宽范围内几乎没有变化。此外，所提出的技术能够控制上3db的角频率。所提出的结果与具有出色的工作带宽和增益调谐范围的可变增益分布式放大器(VGDAs)的最新状态进行了很好的比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Gain-bandwidth tuning techniques for loss-compensated Travelling Wave Amplifiers

This paper presents gain and bandwidth control techniques for wideband loss-compensated Travelling Wave Amplifier (TWAs). The behavior of the distributed amplifiers is tuned acting on the circuit bias in two ways: changing the transistor operation points from saturation to forward active, and tuning the amplifier loss compensation. A tuning range for the gain of 40 dB has been experimentally validated on an existing 0.13 μm SiGe BiCMOS TWA. During the gain tuning the group delay and input and output return losses showed almost no variations over the 170 GHz amplifier bandwidth. Moreover, the presented techniques enabled the control of the upper 3 dB corner frequency. The presented results compare well against the state of the art for variable gain distributed amplifiers (VGDAs) with outstanding bandwidth of operation and gain tuning range.

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来源期刊

2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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