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
Toy
Supply voltage generating circuit and semiconductor device having the same
Tone enhancement bracket
Apparatus and method for transmitting/receiving data in a communication system
Printed circuit board including electromagnetic bandgap structure
Receiver with feedback continuous-time delta-sigma modulator with current-mode input
Carrying case
  Randomly Featured Patents
Insect-proof and tamper-evident cover for beverage container
Locking strap with handle structure
Kayak handling system
Aircraft wings and fuel tanks
Juxtaposing structure for heated ends of heat pipes
Isolation structure profile for gap filling
Use of polyquaternary ammonium methylene phosphonates as microbiocides
Radical polymerization initiator andd process for its preparation
Acylated phthalocyanines
Builders on-line assistant