Active Radio Frequency Applications

ACTIVE RADIO FREQUENCY CAVITY (PATENT PENDING0, OR ARFC, IS A CONCEPT WHICH ENABLES THE INTEGRATION OF A LARGE NUMBER OF LOW-POWER TRANSISTERS OR OTHER SOLID STATE DEVICES INTO A RESONANT RF CAVITY, FORMING A MONOLITHIC LIGHT-WEIGHT, HIGH-EFFECIENCY, HIGH-POWER STRUCTURE. THE LOW OPERATING VOLTAGE OF THE ARFC (10S OF VOLTS TO 100+ VOLTS) REDUCES THE COSTS OF HIGH-VOLTAGE POWER SUPPLIES AND POWER CONDITIONING EQUIPMENT IF THE CAVITY IS THAT OF A RESONANT RF PARTICLE ACCELERATOR, THE SYSTEM IS TERMED AN INTEGRATED RF POWER ACCELERATOR CAVITY OR IRFPAC. IT CAN BE SHOWN THAT ACCELERATING FIELDS ON THE ORDER OF MV/m CAN BE ACHEIVED WITH STATE-OF-THE-ART SSDs. ALTERNATELY, IF THE HIGH RF POWER IS PIPED OUT OF THE CAVITY VIA WAVE GUIDE OR COAXIAL CABLE, THE SYSTEM IS THEN DEEMED AN ACTIVE RF CAVITY AMPLIFIER, OR ARFCA. IT IS DEMONTRATED THAT TENS OF KW OF RF POWER CAN BE OBTAINED AT ABOUT 80% EFFICIENCY AT UHF TO L-BAND FREQUENCIES.