PORTLAND, Oregon — Semiconductor researchers have known since the 1950s that the quantum-confinement effects of tunnel diodes boost circuit speed and current handling while reducing component count ...

In the first part of this series, we took a look at a “toy” negative-differential-resistance circuit made from two ordinary transistors. Although this circuit allows experimentation with ...

Fairview Microwave Inc. recently released a full line of coaxial-packaged tunnel diode detectors that are are well-suited for proof-of-concept and prototype applications. Such application areas ...

The concept of negative resistance has always fascinated me. Of course, a true negative resistance is not possible, and what is meant is a negative differential resistance (NDR). But of course knowing ...

A circulator is a waveguide device that allows energy to travel in one direction only. The tunnel diode in the figure shown is connected across a tuned-input circuit. This arrangement normally ...