April 6, 2020 - Bill Schweber

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,…

February 19, 2020 - Bill Schweber

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…

June 27, 2019 - Majeed Ahmad

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…

May 14, 2019 - Larry Desjardin

Does 5G pose health risks? (part 2)

There is some evidence of possible health risks, but more work is needed.

April 29, 2019 - Martin Rowe

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…

April 24, 2019 - Maurizio Di Paolo Emilio

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…

April 17, 2019 - Martin Rowe

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…

April 11, 2019 - John Dunn

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.