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
MRAM with sidewall protection and method of fabrication
Lens barrel and imaging device
Information processing apparatus and display control method
Water bottle warning triangle
Ventilated vacuum commutation structure
Normalized contextual performance metric for the assessment of fatigue-related incidents
Process for the preparation of protected L-alanine derivatives
  Randomly Featured Patents
Traction control system for vehicles
Apple tree named `Banning Gala`
Method of forming printable media
Method and apparatus for optimizing a controllable adjustment parameter of a cyclically operating machine, particularly an internal combustion engine
Fuel tank device for vehicle having float valve and diaphragm valve
Combined bottle and closure
Base station apparatus and radio communication method
Phase-locked loop having circuit for synchronizing starting points of two counters
Planar solid state laser array
Combustion chamber of internal combustion engine