With so much attention on IBOC, it is appropriate to step back and review the basic principles of RF amplifiers. The radio transmitter is a collection of stages. Each stage modifies the signal in some ...
Evaluating S-parameters and other CW stimulus responses is essential for characterising rf amplifiers. An rf vector network analyser (VNA) plays a critical role for this purpose, and proper ...
Recently, several of my clients have been requesting help with pre-compliance testing in the 10 to 50 V/m range, well beyond what the simple TPI or Windfreak RF synthesizers alone can muster. So, I’ve ...
Over the years, tutorials have appeared in EMC journals explaining how to estimate the power required from a power amplifier intended for use in an RF immunity test system. Little material, if any, ...
Manufactured on a GaAs process, the QPA9510 RF power amplifier from Qorvo covers a frequency range of 100 MHz to 1 GHz. It delivers +35 dBm P1dB output and up to 34 dB gain, with on-chip analog gain ...
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