A New Quadrature LC-Oscillator

Author

Dooghabadi, Malihe Zarre ; Naseh, Sasan

Author_Institution

Dept. of Eng., Ferdowsi Univ., Mashhad

fYear

2007

fDate

27-30 May 2007

Firstpage

1701

Lastpage

1704

Abstract

A new circuit topology for quadrature signal generation is presented. In the proposed circuit two identical negative-resistance oscillators are coupled to each other via capacitors in such a way that quadrature signals are generated. An analysis of the linearized model of the circuit is presented. Since capacitors are used as coupling devices, the proposed circuit has the advantage that no extra noise sources and power consumption are introduced to the circuit in the coupling process. Simulation results are presented for the circuits designed with both CMOS and BJT technologies.

Keywords

CMOS integrated circuits; bipolar integrated circuits; capacitors; integrated circuit design; linearisation techniques; network topology; oscillators; BJT technology; CMOS technology; capacitors; circuit topology; coupling devices; coupling process; linearized model; negative-resistance oscillators; quadrature LC-oscillator; quadrature signal generation; CMOS technology; Capacitors; Circuit noise; Circuit simulation; Circuit topology; Coupling circuits; Energy consumption; Oscillators; Semiconductor device modeling; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on

Conference_Location

New Orleans, LA

Print_ISBN

1-4244-0920-9

Electronic_ISBN

1-4244-0921-7

Type

conf

DOI

10.1109/ISCAS.2007.377921

Filename

4252985