Title :
VHF phase and frequency synthesizers based on PLL principle
Author :
Zhilin, N.S. ; Maystrenko, V.A. ; Niconov, A.V. ; Sayfoutdinov, K.R.
Author_Institution :
Omsk State Eng. Univ., Russia
Abstract :
The design of VHF phase and frequency synthesizers using phase lock loops are suggested for communication units and systems. Experimental models of phase synthesizers have been developed with a low value of phase step at fixed frequencies and errors 0.02° (maximum). A low noise frequency synthesizer has been developed with a frequency switching time of 10 μs, providing a frequency spacing of 0.1 MHz over the range 0.4-2 GHz. Phase synthesizers can also be designed performing phase modulation according to a complex law by means of a sequencing program. The maximum frequency of the phase modulation is about 250 kHz
Keywords :
frequency synthesizers; 0.4 to 2 GHz; 10 mus; 250 kHz; PLL; VHF frequency synthesizers; VHF phase synthesizers; communication units; design; frequency spacing; frequency switching time; low noise frequency synthesizer; maximum frequency; phase lock loops; phase modulation; phase step; sequencing program; Band pass filters; Communication switching; Control systems; Design engineering; Frequency conversion; Frequency modulation; Frequency synthesizers; Phase locked loops; Phase modulation; Voltage-controlled oscillators;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.530817
