Tracking phaselock loop characteristics with a VCO using a Barium Strontium Titanate (BST) thin-film varactor

被引：0
|
作者：
Victor, A. [1 ]
Nath, J. [1 ]
Gard, K. G. [2 ]
Maria, J. -P. [2 ]
Kincon, A. I. [3 ]
Steer, M. B. [2 ]
机构：
[1] Harris Corp, Microwave Commun Div, Morrisville, NC 27560 USA
[2] N Carolina State Univ, Elect & Comp Engn, Raleigh, NC 27695 USA
[3] N Carolina State Univ, Mat Sci & Engn, Raleigh, NC 27695 USA
来源：
2007 IEEE RADIO AND WIRELESS SYMPOSIUM | 2007年
关键词：
BST; VCO; PLL; loop filter; tracking loop; ferroelectric; resonator;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Barium Strontium Titanate (BST) varactors utilized in a WO demonstrate unique tuning characteristics compared to junction varactors. A 2.7 GHz microstrip line VCO operates in a tracking phaselock loop configured as an X4 frequency multiplier. BST oscillator tuning and the effect on loop dynamics is observed by the intentional design of an under damped system. Oscillator noise correction and peaking is noted particularly at low tune voltages. Loop dynamics are addressed through proper design of the loop compensator filter. The differences between BST varactor and junction varactor operation in frequency control are noted.
引用
收藏
页码：497 / 500
页数：4
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