本文讨论了砷化镓双栅场效应管在电视接收机UHF频道选择器中作高频调谐放大和变频应用时的一些考虑，并给出有关的实验结果。
This paper goes into the application of the GaAs Dual-Gate FET to the high frequency tuning-amplification and frequency conversion in a TV UHF channel selector and gives some experimental results.
在高频头中的射频电平调节电路中使用了双栅极场效应管；
Employing a bigrid EFT, the modulator circuit in the rf head is designed for rf level control.
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