Design and Improvement of a Frequency Synthesizer Based on PLL+DDS+PLL

DOI

10.2991/jimec-17.2017.118How to use a DOI?

Keywords

Frequency Synthesizer; PLL+DDS+PLL structure; Co-frequency Interference; Countermeasure.

Abstract

A L-band high performance frequency synthesizer is presented for space TT&C channel. PLL+DDS+PLL structure is used to realize small step-size, high spectrum purity and low phase noise. Experimental result shows that its phase noise is better than -100dBc/Hz@10KHz and its spurious suppression is better than -75dBc. But the additive spurious results co-frequency interference. Find out the case of cofrequency interference and propose corresponding countermeasures by analysis.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Sun Ying
AU  - Yin Mei-liang
AU  - Xie Teng
PY  - 2017/10
DA  - 2017/10
TI  - Design and Improvement of a Frequency Synthesizer Based on PLL+DDS+PLL
BT  - Proceedings of the 2017 2nd Joint International Information Technology, Mechanical and Electronic Engineering Conference (JIMEC 2017)
PB  - Atlantis Press
SP  - 546
EP  - 549
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimec-17.2017.118
DO  - 10.2991/jimec-17.2017.118
ID  - Ying2017/10
ER  -