A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers

A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers

This paper proposes a novel wideband LC-based voltage-controlled oscillator (VCO) for multistandard transceivers. The proposed VCO has a core LC-VCO and a tuning-range extension circuit, which consists of switches, a mixer, dividers, and variable gain combiners with a spurious rejection technique. T...

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Bibliographic Details
Main Authors: Yusaku Ito, Kenichi Okada, Kazuya Masu
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Journal of Electrical and Computer Engineering
Online Access:http://dx.doi.org/10.1155/2011/361910
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spelling doaj-e665b82c09374134981261f9620703d62021-07-02T09:01:58ZengHindawi LimitedJournal of Electrical and Computer Engineering2090-01472090-01552011-01-01201110.1155/2011/361910361910A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio TransceiversYusaku Ito0Kenichi Okada1Kazuya Masu2ICE Cube Center, Tokyo Institute of Technology, Tokyo 226-8503, JapanDepartment of Physical Electronics, Tokyo Institute of Technology, Tokyo 152-8552, JapanICE Cube Center, Tokyo Institute of Technology, Tokyo 226-8503, JapanThis paper proposes a novel wideband LC-based voltage-controlled oscillator (VCO) for multistandard transceivers. The proposed VCO has a core LC-VCO and a tuning-range extension circuit, which consists of switches, a mixer, dividers, and variable gain combiners with a spurious rejection technique. The experimental results exhibit 0.98 to 6.6 GHz continuous frequency tuning with −206 dBc/Hz of FoMT, which is fabricated by using a 0.18 μm CMOS process. The frequency tuning range (FTR) is 149%, and the chip area is 800 μm × 540 μm.http://dx.doi.org/10.1155/2011/361910
collection DOAJ
language English
format Article
sources DOAJ
author Yusaku Ito
Kenichi Okada
Kazuya Masu
spellingShingle Yusaku Ito
Kenichi Okada
Kazuya Masu
A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
Journal of Electrical and Computer Engineering
author_facet Yusaku Ito
Kenichi Okada
Kazuya Masu
author_sort Yusaku Ito
title A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
title_short A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
title_full A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
title_fullStr A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
title_full_unstemmed A Tunable Wideband Frequency Synthesizer Using LC-VCO and Mixer for Reconfigurable Radio Transceivers
title_sort tunable wideband frequency synthesizer using lc-vco and mixer for reconfigurable radio transceivers
publisher Hindawi Limited
series Journal of Electrical and Computer Engineering
issn 2090-0147
2090-0155
publishDate 2011-01-01
description This paper proposes a novel wideband LC-based voltage-controlled oscillator (VCO) for multistandard transceivers. The proposed VCO has a core LC-VCO and a tuning-range extension circuit, which consists of switches, a mixer, dividers, and variable gain combiners with a spurious rejection technique. The experimental results exhibit 0.98 to 6.6 GHz continuous frequency tuning with −206 dBc/Hz of FoMT, which is fabricated by using a 0.18 μm CMOS process. The frequency tuning range (FTR) is 149%, and the chip area is 800 μm × 540 μm.
url http://dx.doi.org/10.1155/2011/361910
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