Transistor, VHF, Silicon, Power, Linear, 30-MHz, 100 Watts PEP

摘要

Single sideband performance has been obtained on the TA2758 transistor packaged in a radial lead stud package. Typical state-of-the-art devices are capable of delivering 75 watts PEP with -30dB intermodulation distortion and 11.5dB power gain with 55 percent collector efficiency. Radial lead stud packages have been successfully fabricated with thermal isolation being achieved by a beryllium ceramic substrate. Sample transistors have been encapsulated with silicone resins. Wafer processing problems that had resulted in poor current handling capability have been successfully eliminated.