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
Method and device for synthesizing image
Polypeptides having beta-glucosidase activity and beta-xylosidase activity and polynucleotides encoding same
Eyeglass component
Universal tablet and smartphone holder
Use of physical deformation during scanning of an object to generate views of the object
Tomlinson Harashima precoding with additional receiver processing in a multi-user multiple-input multiple-output wireless transmission system
Bundled flexible cable with water resistant structure
  Randomly Featured Patents
Profile revising method
Pet dish
Combination article and package construction
Process for producing structurally resistant paper
Body blank welding machine
Clutch mechanism couplable to door locks with locking bolt operated by handles or knobs
Target green for golf practice
Adjustable non-piloted air blast fuel nozzle
Foot orthosis with detachable sole plate
Clock generator and associated self-test and switching-control method