Though not very common in the United States, it's possible to find chip-and-pin credit cards if you value the extra security or travel abroad often.

A patch frequency reconfigurable double slot antenna is presented. The proposed design consists of two rectangular slots and three RF PIN diodes placed symmetrically on each slot to achieve ...

Experimental data and discussion are presented which show the desirability of using thick punch-through PIN diode for high-power limiting. The slower speed of response sets an upper limit on thickness ...

You can charge an electric car using a domestic three-pin plug socket, but a wallbox charger is far better for home use. We explain why.