Title: Radio frequency double-channel voltage controlled oscillator based on central tapped inductive switch
Application Number: 200610029645 Application Date: 2006.08.01
Publication Number: 1889365 Publication Date: 2007.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03L7/099
Applicant(s) Name: Huadong Normal Univ. Address:
Inventor(s) Name: Li Yong;Jing Yiou;Lai Zongsheng;Shen Yihao
Attorney & Agent: cheng zongde shi zhao
Abstract:
    This invention relates to a RF double-band voltage-controlled oscillator based on a central tapping inductor switch, in which, IEEE802.11 is one of the radio LAN protocols widely used in the world at present and the RF front of a radio router based on said protocol needs a phase-locking ring to generate local signals between 2.4G and 5G bands and a background technology applies an inductor switch double band voltage-controlled oscillator, which needs 4 inductors, this invented oscillator applies one inductor with a central tapping to replace the two of the four in the background technology, which is advantaged that the chip area occupied by the IC central tapping on the chip is much smaller than that occupied by the two inductors and especially suitable for being a RF double band voltage-controlled oscillator in the chip of a RF front of a radio router.
Time: 11