what is limiter and its application - RF Cafe Forums
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Post subject: what is limiter and its application
Unread postPosted: Wed Oct 20, 2004 12:38 am
Recently my work involves so-called limiter. I am quite confused of its characteristics and application in the digital communication system(QPSK, etc). Can any expert give some hints?
Post subject: limiter
Unread postPosted: Wed Oct 20, 2004 1:18 pm
There are two components you may be referring to.
One is a high power protection device using PIN diodes. The purpose is to clamp a high power signal to avoid damaging sensitive components on the front end of the receiver.
The other is a limiting amplifier, also referred to as a limiter. This is an amplifier operating in saturation, providing a fixed output level over a wide range of iput power.