VVC 다이오드를 사용한 새로운 변조기

Modulators Using Voltage Variable Capacitance Diode

전압 가변용량 다이오드를 사용하여서 인가전압을 변조신호로 하였을때 수정발진회로의 동조소자로 하면 변조입력을 전혀 필요지 않는 진폭변조방식을 실현할 수 있으며 한편에서는 수정발진자를 4분지 1파장 결합회로를 통하면 하아트레 발진회로가 가장 광대역 주파수 변조기로서 적합함을 시작 결과로서 입증하였다.

Several new modulators using Voltage Variable Capacitance Diode are discribed. It was investigated that amplitude modulation which does not need modulation power is obtained by mdulation VVC diode as a tuning element of the quartz oscillator circuit. It offers a good AM system for carryphones in the citizen bands. While frequency modulated quartz oscillators coupled with a quarter wave network were tested as a wide band frequency modulator, Hartley type transistor oscillator offers the most stable and reproducibel FM quartz oscillator.