Title :
A new approach to design a frequency synthesizer using Direct Digital Synthesis technique
Author :
Aflaki, Pouya ; Mohammadi, Abbas ; Negra, Renato ; Ghannouchi, Fadhel M.
Author_Institution :
Microwave&Wireless Commun. Lab., AmirKabir Univ. of Technol., Tehran
Abstract :
In this paper a new method to generate a high resolution Ka-band frequency synthesizer is presented. Using a DDS (direct digital synthesizer) as a central oscillator followed by a chain of precisely designed multipliers, a very high resolution and fast switching time Ka-band synthesizer with acceptable phase noise is achieved. The output power of Ka-band synthesizer is around -5 dBm all over 5 GHz bandwidth. To implement the design, a DDS having approximately 0.5 Hz resolution and proper phase noise around -145 dBc/Hz is used. The 330-400 MHz output frequency of the DDS is increased to the desired 24-29 GHz band.
Keywords :
direct digital synthesis; frequency multipliers; phase noise; Ka-band frequency synthesizer; direct digital synthesis technique; frequency multipliers; frequency synthesizer design; phase noise; Circuit synthesis; Clocks; Control system synthesis; Frequency conversion; Frequency synthesizers; Network synthesis; Oscillators; Phase noise; Power generation; Tuning; DDS; frequency multiplier; matching network;
Conference_Titel :
Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-1642-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2008.4564840
