ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,522, issued on April 8, was assigned to ASM America Inc. (Phoenix).
"Resonant filter for solid state RF impedance matching network" was invented by Imran Ahmed Bhutta (Moorestown, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, an RF impedance matching circuit includes at least one electronically variable capacitor (EVC) comprising discrete fixed capacitors. Each fixed capacitor has a corresponding switching circuit for switching in and out the fixed capacitor to alter a total capacitance of the EVC. Each switching circuit includes a diode operably coupled to the fixed capacitor to cause the switching in and out of the fixed c...