公开(公告)号：US4047127A

公开(公告)日：1977-09-06

申请号：US718279

申请日：1976-08-27

Applicant: Wilson E. Alexander

Inventor： Wilson E. Alexander

IPC: H03B5/12 ,  H03C1/14 ,  H03C3/24

CPC classification number: H03C1/14

Abstract: An RF oscillator and modulator produces a stable moudlated RF signal with a varying voltage source and without the requirement for critical device selection. A bias voltage for the oscillator transistor is provided by diode means at the oscillator output, the bias voltage being commuted to the transistor through the oscillator tuned circuit. Advantageously, the diode means biases a diode modulator connected to the oscillator output and to a modulation signal whereby linear operation of the diode modulator is enhanced.

Abstract translation: RF振荡器和调制器产生具有变化的电压源的稳定的moudlated RF信号，并且不需要关键的器件选择。 振荡器晶体管的偏置电压由二极管装置在振荡器输出端提供，偏置电压通过振荡器调谐电路转换到晶体管。 有利地，二极管装置偏置连接到振荡器输出的二极管调制器和调制信号，从而增强二极管调制器的线性操作。

公开(公告)号：US4140982A

公开(公告)日：1979-02-20

申请号：US885711

申请日：1978-03-13

Applicant: Wilson E. Alexander

Inventor： Wilson E. Alexander

IPC: H03B1/00 ,  H03B5/18 ,  H03C1/14

CPC classification number: H03B5/1847 ,  H03C1/14 ,  H03B2200/0008 ,  H03B2201/011

Abstract: An RF oscillator and modulator especially useful for UHF applications. The oscillator may comprise a series-tuned Colpitts circuit with the tuned circuit including microstrip transmission lines as impedance elements. The modulator includes a pair of serially connected diodes with the common terminal of the diodes receiving a modulation signal which varies the total current through the diodes. The diodes function as current-variable resistances to attenuate the carrier frequency signal in response to the modulation signal.

Abstract translation: RF振荡器和调制器特别适用于UHF应用。 振荡器可以包括串联调谐的Colpitts电路，其中调谐电路包括作为阻抗元件的微带传输线。 调制器包括一对串联连接的二极管，二极管的公共端接收调制信号，该调制信号改变通过二极管的总电流。 二极管作为电流可变电阻起到响应于调制信号衰减载波频率信号的作用。