| 2～18GHz宽带ALC放大器 |
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| 引用本文： | 高长征.2～18GHz宽带ALC放大器[J].半导体技术,2011,36(11):862-865. |
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| 作者姓名： | 高长征 |
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| 作者单位： | 中国电子科技集团公司第十三研究所,石家庄,050051 |
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| 摘 要： | 介绍了自动电平控制(ALC)放大器的工作原理,研究了组成ALC系统的放大器、衰减器及检波器的特性。采用宽带理论和微波仿真软件,设计了一种2～18 GHz宽带ALC放大器,并给出了测试结果。频率为2～18 GHz,增益大于18 dB,增益平坦度小于3 dB,输入输出驻波比小于2.5,ALC动态范围大于15 dB,输出功率稳定在12.5～13.5 dBm,具有优异的宽带性能及稳定的输出。该宽带ALC放大器采用PHEMT管芯和GaAs MMIC以及微波薄膜工艺,封装在密封的金属盒体中,具有模块化、小型化的特点,应用范围广泛、前景良好。
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| 关 键 词： | 宽带 放大器 检波器 衰减器 自动电平控制 |
2 -18 GHz Broadband ALC Amplifier |
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| Gao Changzheng.2 -18 GHz Broadband ALC Amplifier[J].Semiconductor Technology,2011,36(11):862-865. |
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| Authors: | Gao Changzheng |
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| Affiliation: | Gao Changzheng(The 13thResearch Institute,CETC,Shijiazhuang 050051,China) |
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| Abstract: | The principle of the ALC amplifier was described.The performance of the amplifier,attenuator and detector were evaluated.Based on broadband topology configuration,after simulation and analysis,the design process and results of a 2-18 GHz broadband ALC amplifier were given.The ALC amplifier operates from 2 GHz to 18 GHz,and the gain is over 18 dB with the flatness below 3 dB.The input and output VSWR are below 2.5.The ALC dynamic is above 15 dB.The output power is 12.5-13.5 dBm.The broadband ALC amplifier using PHEMT chips and GaAs MMICs was fabricated with hybrid microwave integrated circuits technology and fixed in hermetic sealing.Due to superior features of modularization and small size,the ALC amplifier can be widely used in a wide range of microwave areas. |
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| Keywords: | broadband amplifier detector attenuator automatic level control(ALC) |
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