Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Amplifier feedback and bias configuration










Image Number 4 for United States Patent #7446612.

A wireless communication device output amplifier configured to reduce or eliminate out of band oscillations from voltage standing waves generated by antenna impedance mismatch reflection. The amplifier is configured with an input, output, and biasing node. The biasing node is configured to receive a biasing signal from a biasing amplifier. The biasing amplifier draws current from the biasing node while providing the biasing voltage to the output amplifier. To reduce or eliminate out of band voltage standing waves from antenna reflections, a frequency dependant network is provided as a feedback loop to selectively provide feedback to the output amplifier to reduce or eliminate unwanted out of band oscillations, such as voltage standing waves. The frequency dependant network may comprise one or more resistors, inductors, and capacitors which are of small size and may be integrated.








 
 
  Recently Added Patents
Load balancing for parallel tasks
Accelerator for a read-channel design and simulation tool
Image forming apparatus
Virtual appliance update method
Method and apparatus for performing real time anomaly detection
Reading apparatus and reading method
Optical modulator module
  Randomly Featured Patents
Compressor cleaning system
Jumper cables with lights
Method to control the operation of wheels of a vehicle to prevent slipping or skidding, and brake locking
Very large size display screen
Power supply having a transformer for standby mode operation
Arrangement for wet processing photosensitive materials
Semiconductor memory devices performing erase operation using erase gate and methods of manufacturing the same
Key exchange proxy network system
Corner protector
Apparatus for adjusting optical system of an image forming apparatus