Powering RF Photons (II)
We first wrote about radio-frequency (RF) powerchips in November 2000 (Powering RF Photons) – the high powered silicon LDMOS chips that amplify “radio-frequency” (RF) currents to power levels of a hundred Watts or more. These high-frequency currents drive the antennas that punch out signals from million base stations to reach a billion cell phones, along…