Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
RFID reader revocation checking using low power attached displays
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
Channel estimating method and device
Automatic portable electronic device configuration
Dental plier
Architectural panel with millet and grass
Spectrometer
  Randomly Featured Patents
Process for modifying visosity of ethylene copolymers
Electric inspection unit using anisotropically electroconductive sheet
Threading or drill chuck with wireless fault transmission
Transformer housing
Spread spectrum clock generator with controlled delay elements
Apparatus and method for driving sensorless motor
Permanent marking article
Electric cord receptacle
Network system having route verification function and the component apparatuses and method thereof
Control device for engine driven vehicle incorporating generator