PMA3-453-D+是一款基于PHEMT的宽带低噪声MMIC放大器芯片,在非常宽的板带宽上具有高增益和低噪声系数的独特组合,非常适合用作接收器应用的第一级驱动放大器。该设计在单个4V电源上运行,并与50欧姆相匹配。 特性 宽带,10至45 GHz 可低至9 GHz 高增益,典型值25.5 dB。20 GHz 低NF,典型值1.6 dB。20 GHz P1...
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OR PMA3-453+ 10/27/2021 Page 1 of 2 MMIC Amplifier Typical Performance Curves 30 28 26 24 22 20 18 16 14 12 10 10000 OUTPUT IP3 vs. FREQUENCY & TEMPERATURE OUTPUT POWER = -5.00dBm, Vd = 4.00V -45°C +25°C +85°C 15000 20000 25000 30000 35000 FREQUENCY (MHz) 40000 45000 ...
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(3)若点P(-4,0),在直线AB上取一点M,使得∠PMA=∠E,求直线PM的解析式. 试题答案 在线课程 分析(1)由y=3x+3和y=-2x+6,求得A(-1,0),B(0,3),D(3,0),根据勾股定理求出AB=10,BD=32,由等腰直角三角形,得到∠FBC=∠OBD=45°,∠CBD=90°,根据三角形相似,对顶角相等,等量代换,外角的性质,...