Digital phase modulator using non-linear amplifiers and a...

Details Digital phase modulator using non-linear amplifiers and a... Digital phase modulator using non-linear amplifiers and a...

H - Electricity

03

C

H03C 3/40 (2006.01) H03F 1/02 (2006.01) H03F 1/32 (2006.01) H04L 27/20 (2006.01)

Patent

CA 2336994

The modulator includes an oscillator generating signals, each having a different phase, and a selector receiving digital data. When the digital data received by the selector changes logic state, the selector supplies a first and second plurality of signals generated by the oscillator to first and second non-linear amplifiers, respectively. An adder then adds the output of each amplifier to generate a radio frequency output.

L'invention concerne un modulateur comprenant un oscillateur générant des signaux ayant chacun une phase différente, et un sélecteur destiné à recevoir des données numériques. Lorsque les données numériques reçues par le sélecteur changent d'état logique, le sélecteur fournit respectivement à un premier et à un second amplificateur non linéaires un premier et un second ensemble de signaux, générés par l'oscillateur. Un additionneur effectue ensuite la somme des sorties de chaque amplificateur en vue de générer une sortie radiofréquence.

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