Resources Contact Us Home
Reduction of second order harmonic distortion in high power TWT amplifiers

Image Number 5 for United States Patent #5838195.

Second harmonic distortion of a traveling wave tube amplifier with a bandwidth exceeding one octave is efficiently minimized by generating a low-power second harmonic signal, modifying it by an adaptive filter, and adding the modified second harmonic signal to the fundamental frequency input signal to the TWT. The adaptive filter is controlled by a feedback loop from the output of the TWT and is arranged to minimize the correlation between the generated second harmonic signal and the second harmonic content of the TWT output. Intermodulation distortion is eliminated in a similar manner.

  Recently Added Patents
Establishing a social network
Apparatus and method for discharging capacitor of input filter of power supply, and power supply including the apparatus
Semiconductor device comprising a Fin and method for manufacturing the same
Adaptive input interface
Method and apparatus for image sensor packaging
Systems and methods for port mirroring with network-scoped connection-oriented sink
Digital broadcasting transmission and reception system, and a signal processing method using turbo processing and turbo decoding
  Randomly Featured Patents
Phenolic polymers made by aralkylation reactions
Hydraulic ice breaker
System, method and computer program product for demand-weighted selection of sales outlets
Clock recovery circuit of demodulator
Sequential subset catalog search engine
Packaging and applicator device including an element forming an intermediate reservoir
Binder compositions comprising an ester and their use
Method and apparatus for updating a mobile station parameter set
Method of fabricating a fin transistor
Adjustable leg supported mouse pad