Title :
A New Quadrature LC-Oscillator
Author :
Dooghabadi, Malihe Zarre ; Naseh, Sasan
Author_Institution :
Dept. of Eng., Ferdowsi Univ., Mashhad
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;
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
DOI :
10.1109/ISCAS.2007.377921
