In the 1990s, experts calculated that without efforts to increase efficiencies and reduce “no-load” power consumption, external power supplies—the ones used to power everything from cell-phones to ...

A tough challenge for test engineers is explored in terms of test methods, pitfalls, and measurement errors. For the test engineer, RF and microwave power amplifier testing imposes unique challenges.

A directional coupler is used to sample a small amount of input signal power for measurement purposes. Port 1 is the input port; port 2 is the output port; port 3 is the coupled port; port 4 is the ...

When verifying the electric characteristics of airborne utilization equipment, engineers need to test their compliance with relative standards (for example, MIL-STD-704 for military airplanes and RTCA ...