| 具有增益均衡功能的新型宽带MMIC放大器 |
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| 引用本文： | 汪珍胜,陈效建,郑惟彬,李辉.具有增益均衡功能的新型宽带MMIC放大器[J].固体电子学研究与进展,2008,28(4). |
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| 作者姓名： | 汪珍胜 陈效建 郑惟彬 李辉 |
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| 作者单位： | 单片集成电路与模块国家级重点实验室,南京,210016 |
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| 基金项目： | 国家级重点实验室基金
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| 摘 要： | 由于行波管"山丘状"功率增益特性需要补偿,提出了具有增益均衡功能的新型宽带单片放大器结构。利用FET作可调元件的嵌入式低损无源滤波网络实现了增益均衡功能。设计中采用了有别于传统的分布放大器形式,选择了高效率高增益级联型单级分布放大器结构。研制出的嵌入增益均衡滤波网络的三级级联型单级分布放大器,在6～14GHz频带范围内,仅使用5个0.25×120μmp HEMT,小信号增益15.5±1.3dB;输入输出反射损耗<-10dB;NF<8dB;频带中部引入的电调衰减幅度超过7dB。芯片面积为2.48mm×1.25mm。验证了此新型电路结构的可行性。
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| 关 键 词： | 微波单片集成电路 频率均衡器 可调增益 级联型分布放大器 微波功率模块 |
A Novel Monolithic Broad Band Amplifier with Gain Equalizing Characteristic |
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| WANG Zhensheng,CHEN Xiaojian,ZHENG Weibin,LI Hui.A Novel Monolithic Broad Band Amplifier with Gain Equalizing Characteristic[J].Research & Progress of Solid State Electronics,2008,28(4). |
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| Authors: | WANG Zhensheng CHEN Xiaojian ZHENG Weibin LI Hui |
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| Affiliation: | WANG Zhensheng CHEN Xiaojian ZHENG Weibin LI Hui (National Key Laboratory of Monolithic Integrated Circuits , Modules,Nanjing,210016,CHN) |
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| Abstract: | A novel multi-octave-frequency-band amplifier configuration with gain equalizing characteristic has been developed to compensate the hill-like power-gain response of traveling-wave tube in this paper. A novel embedded low-loss filter network,in which a FET is adopted as an adjustable element,makes the circuit's gain-band characteristic curve 'concave' and adjustable. The cascaded single-stage distributed amplifier (CSSDA) with much better performance in gain and efficiency has replaced the conventional trav... |
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| Keywords: | MMIC frequency equalizer adjustable gain cascaded single-stage distributed amplifiers microwave power module |
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