A 11.5–22GHz dual-resonance transformer-coupled quadrature VCO

Author

Saberi, Shadi ; Paramesh, Jeyanandh

Author_Institution

Electr. & Comput. Eng. Dept., Carnegie Mellon Univ., Pittsburgh, PA, USA

fYear

2011

fDate

5-7 June 2011

Firstpage

1

Lastpage

4

Abstract

A wide-tuning CMOS quadrature VCO (QVCO) is presented that uses a transformer-coupled resonator that enables quadrature coupling and facilitates alternative tuning methods including mutual inductance switching, magnetic tuning, and dual resonance mode switching besides the conventional capacitor tuning. The QVCO, fabricated in 130nm CMOS, can generate quadrature signals in the frequency range of 11.56-18.1 GHz and 18.9-22 GHz. The phase noise was measured -107dBc/Hz at 1MHz offset from 13.3GHz. The QVCO consumes 20-29mW and the output buffers consume 21mW from a 1.2V supply.

Keywords

CMOS analogue integrated circuits; field effect MMIC; microwave oscillators; microwave resonators; phase noise; tuning; voltage-controlled oscillators; QVCO; capacitor tuning; dual resonance mode switching; dual-resonance transformer-coupled quadrature VCO; frequency 11.5 GHz to 22 GHz; magnetic tuning; mutual inductance switching; phase noise; power 20 mW to 29 mW; size 130 nm; transformer-coupled resonator; tuning methods; voltage 1.2 V; wide-tuning CMOS quadrature VCO; Magnetic resonance; Phase noise; Switches; Tuning; Varactors; CMOS integrated circuits; dual band; mutual coupling; phase noise; transformers; varactors; voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE

Conference_Location

Baltimore, MD

ISSN

1529-2517

Print_ISBN

978-1-4244-8293-1

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2011.5940680

Filename

5940680