摘要: |
研制了工作于Ka频段的10 W线性化固态功放。采用预失真技
术的线性化单元主要由一个肖特基二极管和一个电容并联构成,具有增益扩展和相位延迟的
特性,
并且其增益和相位特性具有可调性。将其应用于工作频率为30 GHz、输出功率为10 W
的功放,双音激励信号频率间隔为5 MHz,三阶互调(IMD3)可以改善15 dBc。 |
关键词: 毫米波 固态功放 三阶互调 预失真 线性化器 |
DOI: |
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基金项目: |
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Development of linearizer for millimeter-wave solid state power amplifier |
LI Kai,HUANG Jian,LI Pei |
(Southwest China Institute of Electronic Technology,Chengdu 610036,China;Institute of Physical Electronics,University of Electronic Science and Techn
ology of China,Chengdu 610054,China) |
Abstract: |
A linearizer for 10 W Solid State Power Amplifier(SSPA) in Kaband is devel
oped. The millimeterwave(MMW) predistortion linearizer, which is composed of a
Schottky diode and a parallel capacitor, has gain expansion and phase shift char
acteristics, and its characteristics can be controlled. By applying this lineari
zer to a 30 GHz
power amplifier with 10 W output power, and using a twotone prompting sign
al with 5 MHz spacing, the improvement of IMD3 is 15 dBc. |
Key words: millimeter wave(MMW) solid state power amplifier(SSPA
) three order intermodulation predistortion linearizer |