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 ...
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 ...
In Part 3 of RF Fundamentals, we will focus on the challenges related to the need to generate and demodulate analog and digitally modulated signals in the RF signal chain. We’ll review CW signal ...
The operation of an electromechanical switch is based on the simple theory of electromagnetic induction. This switch relies on mechanical contacts for its switching mechanism. In electromechanical ...
Often underestimated, RF field probes are critical to the implementation of a proper radiated immunity test system. All too often, system specifiers gloss over this essential element after having ...
Calculations and tables often are used to determine whether a broadcast site is compliant with the RF radiation exposure regulations of the Federal Communications Commission. There are situations, ...