The Doppler Effect: Existed Before Railroads?
Of course the effect did exist before the railroads. However, it wasn’t yet defined by the physics of the day,…
Some Progress in the Ongoing Multiband Antenna Proliferation Battle
Multiband, co-located RF installations are placing increasing demands on antennas and RF front ends. There are solutions, but they are…
Making 5G mmWave a Reality for Smartphones
The launch of the 5G handset duo is a testament that mmWave communications is for real and it’s affordable as…
Does 5G pose health risks? (part 2)
There is some evidence of possible health risks, but more work is needed.
3 Steps for Overcoming PCB EMI Issues
EMI consultant Kenneth Wyatt has written a three-part series for readers on how to design PCBs to minimize EMI. Follow…
Fundamentals of RF Energy Harvesting Circuit Design
A careful selection of integrated power management circuits and energy storage devices are fundamental in the design of any electronic…
EMC Testing in Space
Testing for EMC on a spacecraft isn’t unlike testing for terrestrial equipment except for the fact that spacecrafts live in…
Circuit board layout drama: swept frequency VCO
This swept frequency voltage-controlled oscillator was designed for a signal generator that featured a swept RF output.