Novel hybrid type Automatic Amplitude Control loop VCO

Author

Zhang, Yuxiang ; Boon, Chirn Chye ; Miao, Yannan ; Do, Manh Anh ; Yeo, Kiat Seng

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

356

Lastpage

359

Abstract

This paper presents a Voltage Control Oscillator (VCO) with Automatic Amplitude Control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. Detail transient analysis of this AAC VCO is derived. Based on this analysis, design steps applicable for such type of AAC loop is obtained. Measurement result shows the peak amplitude variation over the operation range of 2.65 GHz to 3 GHz is less than 9mV (without the AAC loop, amplitude variation can be as large as 40mV, or 22.2%). Phase noise achieves -123.3dBc/Hz at 1 MHz offset frequency. Power consumption of the proposed AAC VCO is 10.8 mW while the power consumed by the loop is less than 1mW.

Keywords

UHF oscillators; microwave oscillators; transient analysis; voltage-controlled oscillators; AAC loop; ISM band applications; frequency 1 MHz; frequency 2.65 GHz to 3 GHz; hybrid-type automatic amplitude control loop VCO; industrial-scientific-medical band applications; power 10.8 mW; transient analysis; voltage control oscillator; Charge pumps; Equations; Mathematical model; Partial discharges; Phase noise; Transient analysis; Voltage-controlled oscillators; VCO; design steps; hybrid type automatic amplitude control loop; transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066652

Filename

6066652