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
Video reproducing apparatus and video reproducing method
Push mechanism for efficiently sending aggregated data items to client
Process for producing a plasma protein-containing medicament with reduced concentration of citrate and metals
Fluid discrimination device
Light-emitting device, film-forming method and manufacturing apparatus thereof, and cleaning method of the manufacturing apparatus
Method, system and computer program product for managing funds in custodial deposit accounts
Integrated touch screen
  Randomly Featured Patents
Method and apparatus for making a creped tissue with improved tactile qualities while improving handling of the web
Multimedia processing system architecture
Method of establishing synchronism between teletypewriter transmitter and teletypewriter receiver
Position and orientation locator/monitor
Guide blade set for diverging jet streams in a steam turbine
Single stage cyclone vacuum cleaner
Easy fret
System and method for generating a phrase pronunciation
Method for preventing lane departure for use with vehicle
Apparatus and method for detecting and inhibiting signals interfering with a Loran C signal