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
Front end for RF transmitting-receiving systems with implicit directional control and time-multiplexing method in submicron technology
Motor with power-generation coil module
System and method for order placement in an electronic trading environment
Lamination sheet
Profile and template based dynamic portable user workflow
Signal processing apparatus and methods
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
  Randomly Featured Patents
User-entered credentials for a mobile station in a wireless network
Self contained cell growth system
Method for surface treatment of a magnetic amorphous alloy
Folding top of a convertible automobile
Novel odorant compositions
Electromagnetic valve
Method and apparatus for high efficiency position information reporting
Distance measuring apparatus using integration of reflected light and obtaining a plurality of distance signals
Portable humidifier
Data processing system with improved bit field handling