Transmitter circuit for efficiently transmitting c

专利名称：Transmitter circuit for efficiently

transmitting communication traffic via phasemodulated carrier signals

发明人：Ernst, Gregory John,Fraley, Daniel

McCreight, Jr.

申请号：EP117166.2申请日：190916公开号：EP0360178A3公开日：19901227

专利附图：

摘要：Transmitter for transmitting communication traffic via phase modulated carrier

signals. The device provides for an efficient amplification of a phase modulated carriersignal using Class C amplifier (19) technology. An envelope function is applied to thecarrier signal by modulating the Class C amplifier (19) with a related spectrum-suppressing amplitude envelope signal. Phase distortion accompanying the amplitudemodulation of the Class C amplifier is compensated by generating a phase offset for thecarrier signal. As each envelope function for suppressing the spectrum is generated, acorresponding phase offset may be applied to the carrier signal, avoiding the

consequences of phase shift resulting from amplitude modulating the carrier signal in theClass C amplifier (19).

申请人：HUGHES NETWORK SYSTEMS, INC. (a Delaware Corporation)

地址：11717 Exploration Lane Germantown, Maryland 20874-2799 US

国籍：US

代理机构：Witte, Alexander, Dr.-Ing.

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