High spectrum purity signal source applied in X-band radar frequency criterion generator

Author

Yumei, Yang ; Yuxin, Zhang ; Zhou Zheng´ou

Author_Institution

Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2001

fDate

2001

Firstpage

912

Lastpage

915

Abstract

A high spectrum purity DDS-PLL signal source applied in X-band radar frequency criterion generator is introduced. It´s specifications list the following: output frequency range 8500 MHz~9800 MHz; hopping step 1 kHz; hopping points 1,000,000; phase noise <-80 dBdHz@10 kHz. A novel and particular scheme is introduced, a good many mutual inconsistent factors can be satisfied simultaneously by using this method, and the specification´s requirements can be achieved. The scheme is based on a DDS-PLL hybrid frequency synthesizer. The measurement results are presented. On the basis of the measurement result, the distribution characteristics of the output spectrum are analyzed

Keywords

direct digital synthesis; phase locked loops; phase noise; radar equipment; spectral analysis; 1 kHz; 8500 to 9800 MHz; DDS-PLL hybrid frequency synthesizer; DDS-PLL signal source; SHF; X-band radar frequency criterion generator; direct digital frequency synthesizer; distribution characteristics; high spectrum purity signal source; hopping points; hopping step; output frequency range; output spectrum; phase locked loops; phase noise; Circuits; Displays; Frequency conversion; Frequency synthesizers; Phase locked loops; Phase noise; Radar; Signal generators; Tuning; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2001 CIE International Conference on, Proceedings

Conference_Location

Beijing

Print_ISBN

0-7803-7000-7

Type

conf

DOI

10.1109/ICR.2001.984859

Filename

984859