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
Safety sign for a vehicle
Media data transfer
Starter relay structure for auto-starting
Class-AB XTAL circuit
Super-resolution optical recording medium on which information is recorded using train of prepits, optical recording medium reproduction device, and control method
Computationally efficient multi-resonator reverberation
Estrogen receptor modulators and uses thereof
  Randomly Featured Patents
Docosahexaenoic acid producing strains of Yarrowia lipolytica
Integrated plasmonic sensing device and apparatus
Negative photosensitive resin composition
Thiocarbonylthio compound and free radical polymerization employing the same
Acyl derivatives of C-076 compounds
Electronic device and timer therefor with tamper event time stamp features and related methods
Multiple strength fluid distribution apparatus
Condensing surface for heat exchanger with fins arranged to drip condensate onto one side only
Two-dimensional digital linear interpolation system
Process for the reduction of a tertiary phosphine oxide to the corresponding tertiary phosphine in the presence of a catalyst and use of a tertiary phosphine for reducing a tertiary phosphine