Resources Contact Us Home
Power amplifying apparatus for wireless transmitter

Image Number 12 for United States Patent #5126688.

A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in order to avoid the disadvantage that a transmission spectrum is expanded because of no supply of a stable voltage to be supplied to the electric power amplifier, thereby producing a cross-talk, a stabilizing power source circuit is provided to stabilize the voltage between the power amplifier and the power source for supplying the voltage.

  Recently Added Patents
Active tags
Methods of making a diagnostic device by interweaving hydrophobic and hydrophilic fibers, and diagnostic device therefrom
Efficient relay automatic repeat request procedure in broadband wireless access system
High-order harmonic device of cavity filter
Process for making thermoplastic polymer pellets
Anti-phishing system and method
Recovery of a hot-pluggable serial communication link
  Randomly Featured Patents
Hand basket
Heat and power supply system
Frequency stabilization circuit for a local oscillator
Mould mechanisms
Satellite dish antenna mounting system
Image processing apparatus, moving image encoding apparatus, information processing method and information processing program
Damping force control system for vehicle suspension
System and method for non-destructive functional imaging and mapping of electrical excitation of biological tissues using electromagnetic field tomography and spectroscopy
Extracardiac blood flow amplification device