VCO linearisation by frequency feedback

Author

Gustrau, J. ; Fiechtner, F. ; Hoffmann, M.

Author_Institution

Ulm Univ., Germany

fYear

1998

fDate

11-8 June 1998

Firstpage

135

Lastpage

138

Abstract

We demonstrate, how a voltage controlled oscillator is linearised by frequency feedback independently of the VCO-characteristic. The VCO is replaced by a controlled frequency locked loop. Hereby, the VCO characteristic is substituted by the inverse function of the frequency detector characteristic, which, in our case, is linear to a great extent. A 70 MHz oscillator was built to verify the principle.

Keywords

VHF oscillators; feedback oscillators; linearisation techniques; voltage-controlled oscillators; 70 MHz; VCO linearisation; controlled frequency locked loop; frequency detector characteristic; frequency feedback; inverse function; voltage controlled oscillator; Delay lines; Detectors; Diodes; Feedback; Filters; Frequency locked loops; Frequency synthesizers; Radiofrequency integrated circuits; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 1998 IEEE

Conference_Location

Baltimore, MD, USA

ISSN

1097-2633

Print_ISBN

0-7803-4439-1

Type

conf

DOI

10.1109/RFIC.1998.682065

Filename

682065

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2175888