RF Power Gain Compensation Circuit of Electronic Tuning Tuner

摘要

the design of electronic tuning tuner, especially rf (Radio Frequency) power gain is unified as the rf power on the gain compensation circuit, the rf power gain at zero to reduce the rf tuning section and the impedance matching of the single easy to rf. the gain compensation will be provided for the purpose of, in the.in this research, in order to achieve the purpose of the input signal to a high frequency amplifier is a high frequency amplifier (1) and the high frequency amplifier (1) with the output of the rf tuning to the rf tuning part (3), the rf tuning part (3) of the high frequency tuning signal to the variable capacitance diode. (D3), also will not change. capacitance diode (D3) rf output and the external input is coupled with the capacitor (C3), the variable capacitance diode (D3) and the capacitor (C3) combined between the first link and the other end of the variable capacitance diode (D3) in order to control the tuning voltage. the answer is that hong kong (R5) as characteristic of electronic tuning tuner with rf power gain of the compensation circuit.