Wideband phase locked loop transmitter system

Details Wideband phase locked loop transmitter system Wideband phase locked loop transmitter system

H - Electricity

03

L

328/28

H03L 7/00 (2006.01) H03L 7/12 (2006.01)

Patent

CA 1051098

WIDEBAND PHASE LOCKED LOOP TRANSMITTER SYSTEM ABSTRACT OF THE DISCLOSURE A phase locked loop including a reference oscillator connected to one input of a loop phase detector the output of which is connected through an integrating low pass filter to a voltage controlled oscillator with the output of the voltage controlled oscillator being mixed with a second frequency and compared to the reference frequency in the loop phase detector. The mixer output is also compared to an output of the reference oscillator shifted 90° in a quadrature phase detector, the output of which controls a lock detector which in turn controls a fixed current sink. The fixed current sink is connected to the integrating low pass filter when the loop is in an unlocked condition so that a linear voltage, ramp signal is applied to the voltage controlled oscillator from the output of the integrating low pass filter. An RF gate attenuates the voltage controlled oscillator output until lock is achieved and subsequent power amplifiers are in operation at which time the RF gate gradually connects the power amplifiers to the output of the voltage controlled oscillator.

244388

Affiliated with

Also associated with

Rating

Wideband phase locked loop transmitter system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wideband phase locked loop transmitter system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wideband phase locked loop transmitter system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1164832