About Robert Washek

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So far Robert Washek has created 2 blog entries.
18 04, 2018

Power Amplifier Thermal Protection: Power Back Off

By |2020-01-22T14:03:55+00:00April 18th, 2018|Product Development, RF Amplifier|

An RF Power Amplifier (PA) or Bi-Directional Amplifier (BDA) is able to detect a low-powered RF signal and amplify it to a higher amplitude, providing a variety of useful applications, such as extending the range of Unmanned Aerial Vehicle (UAV) datalinks. Any device generating high power will also result in the generation of heat. For [...]

31 05, 2017

Have you Considered the Effects of Mismatch Impedances on the Output of your PA?

By |2020-01-22T14:20:09+00:00May 31st, 2017|Product Development, RF Amplifier|

In order to deliver the maximum amount of power from a power amplifier to an antenna, the impedances must be matched. The parameter used to measure how well the impedances are matched is the Voltage Standing Wave Ratio (VSWR). VSWR is a reflection coefficient known as 'return loss'. It is a measure of how much [...]