Invention Grant
- Patent Title: Down-converter
- Patent Title (中): 下变频器
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Application No.: US13558131Application Date: 2012-07-25
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Publication No.: US08805309B2Publication Date: 2014-08-12
- Inventor: Dominicus Martinus Wilhelmus Leenaerts , Gerben Willem De Jong , Edwin Van Der Heijden , Marcellinus Johannes Maria Geurts
- Applicant: Dominicus Martinus Wilhelmus Leenaerts , Gerben Willem De Jong , Edwin Van Der Heijden , Marcellinus Johannes Maria Geurts
- Applicant Address: NL Eindhoven
- Assignee: NXP, B.V.
- Current Assignee: NXP, B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP11250679 20110728
- Main IPC: H04B7/08
- IPC: H04B7/08 ; H04B1/26 ; H03D7/16 ; H04B1/00 ; H04B7/04

Abstract:
A down-converter for receiving a multiband radio frequency signal (RF) and a local oscillator signal comprises a frequency divider and a heterodyne receive chain. The frequency divider is configured to divide the local oscillator signal and provide different divided local oscillator signals. The heterodyne receive chain comprises a first stage mixer and second stage mixers. The first stage mixer is configured to mix the multiband radio frequency signal and either the local oscillator signal or a divided local oscillator signal to generate a first intermediate frequency signal. Each second stage mixer is configured to mix the first intermediate signal and a divided local oscillator signal to generate second intermediate frequency signals that each represent a band from the multiband radio frequency signal. The frequency divider is configured to provide a different divided local oscillator signal to each of the second stage mixers.
Public/Granted literature
- US20130028352A1 DOWN-CONVERTER Public/Granted day:2013-01-31
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