A Wide-Tunable LC-Based Voltage-Controlled Oscillator Using a Divide-by-N Injection-Locked Frequency Divider

• HARA Shoichi

  Department of Physical Electronics, Tokyo Institute of Technology

• OKADA Kenichi

  Department of Physical Electronics, Tokyo Institute of Technology

• MATSUZAWA Akira

  Department of Physical Electronics, Tokyo Institute of Technology

抄録

This paper proposes a novel wideband voltage-controlled oscillator (VCO) for multi-band transceivers. The proposed oscillator has a core VCO and a tuning-range extension circuit, which consists of an injection-locked frequency divider (ILFD) and flip flop dividers. The two-stage differential ILFD generates quadrature outputs and realizes two, three, four, and six of divide ratio with very wide output frequency range. The proposed circuit is implemented by using a 90nm CMOS process, and the chip area is 250 × 200µm². The measured result achieves continuous frequency tuning range of 9.3MHz-to-5.7GHz (199%) with −210dBc/Hz of figure-of-merit (FoM _T).

収録刊行物

• IEICE Transactions on Electronics

  IEICE Transactions on Electronics E93-C (6), 763-769, 2010

  一般社団法人 電子情報通信学会

キーワード

• CMOS
• VCO
• divider
• inductor

詳細情報

• CRID: 1390001204376666752
• NII論文ID: 10026825955
• NII書誌ID: AA10826283
• DOI: 10.1587/transele.e93.c.763
• ISSN: 17451353
• ISSN: 09168524
• Web Site: http://www.jstage.jst.go.jp/article/transele/E93.C/6/E93.C_6_763/_pdf
• 本文言語コード: en
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