SILICON PIN DIODES
Microwave applications
MICROWAVE AP P LICATIONS
Low and m edium voltage PIN diode applications
The m ost com m on uses of these devices are: fast switching, attenuation and lim iting. They operate at
frequencies from a few MHz to 100 GHz.
In switching applications, e.g. tim ing digital bit stream s, these PIN diodes support signal power levels
below 30 W, up to 100 GHz. Thin I layers, from 1 to 50 µm , and passivated m esa technology in chip
configurations, yield very low junction capacitance (C ), i.e. below 0.025 pF.
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As attenuators, e.g. in Autom atic Gain Control (AGC) circuits, these PIN diodes are m anufactured with
a proprietary technology. This technology optim izes the relationship between C and R
Series Resistance), offering a high Minority Carrier Lifetim e τl, which m inim izes signal distortion.
(Forward
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SF
In lim iting applications, e.g. passive protection for receivers, these PIN diodes operate as power
dependent variable resistors.
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Vol. 1
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