The first semiconductors capable of functioning as radio frequency power amplifiers date back to the 1950s. During this time, germanium transistors were developed that could operate at low power levels in the VHF and UHF bands. However, efficiencies were poor and reliability was a major issue. In the 1960s, the introduction of silicon transistors led to significant improvements in pow... https://www.coherentmarketinsights.com/market-insight/rf-power-semiconductor-market-1151