A 0.4-6-GHz Frequency Synthesizer Using Dual-Mode VCO for Software-Defined Radio

This paper presents a dual-mode voltage-controlled oscillator (DMVCO) and a DMVCO-based wideband frequency synthesizer for software-defined radio applications. The DMVCO allows the synthesizer to leverage single-sideband (SSB) mixing, a power efficient approach, for high-frequency local oscillator (...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2013-02, Vol.61 (2), p.848-859
Main Authors: Zhou, Jin, Li, Wei, Huang, Deping, Lian, Chen, Li, Ning, Ren, Junyan, Chen, Jinghong
Format: Article
Language:English
Subjects:
Amplitude modulation
Applied sciences
Broadcasting. Videocommunications. Audiovisual
Capacitors
Circuit properties
Design. Technologies. Operation analysis. Testing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Frequency synthesizer
Frequency synthesizers
Integrated circuits
Mixers
Noise measurement
Oscillators, resonators, synthetizers
phase noise
Radio
Radiocommunication specific techniques
Radiocommunications
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal generation
single-sideband (SSB) mixer
software-defined radio (SDR)
Synthesizers
Telecommunications
Telecommunications and information theory
Television
Voltage controlled oscillators
voltage-controlled oscillator (VCO)
wireless communication
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Summary:This paper presents a dual-mode voltage-controlled oscillator (DMVCO) and a DMVCO-based wideband frequency synthesizer for software-defined radio applications. The DMVCO allows the synthesizer to leverage single-sideband (SSB) mixing, a power efficient approach, for high-frequency local oscillator (LO) signal generation, without the need of poly-phase filter or quadrature voltage-controlled oscillator (QVCO). When compared to the QVCO approach, the DMVCO solution allows the synthesizer to provide continuous LO signals without frequency gaps. The synthesizer is implemented in a 0.13-μm CMOS technology, occupying an active area of 2.2 mm 2 and consuming 34-77 mW of power. It provides in-phase and quadrature-phase LO signals over the frequency bands of 0.4-3- and 5-6 GHz and differential LO signals from 0.4 to 6 GHz, supporting major wireless standards including DVB-T, GSM, WCDMA, TD-SCDMA, WLAN802.11 a/b/g, and Bluetooth. The measured phase noises are -135 and -124 dBc/Hz at 3-MHz offset under 1.8- and 5.15-GHz carriers, respectively. The measured spurious tones are less than - 42 dBc at the SSB mixer output.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2012.2233493