Invention Grant
- Patent Title: Direct RF complex analog to digital converter
- Patent Title (中): 直接RF复合模数转换器
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Application No.: US12014846Application Date: 2008-01-16
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Publication No.: US07692570B2Publication Date: 2010-04-06
- Inventor: Paul T. Martellock , Byron W. Tietjen , Michael J. Walsh , Lindsay C. Peterson
- Applicant: Paul T. Martellock , Byron W. Tietjen , Michael J. Walsh , Lindsay C. Peterson
- Applicant Address: US MD Bethesda
- Assignee: Lockheed Martin Corporation
- Current Assignee: Lockheed Martin Corporation
- Current Assignee Address: US MD Bethesda
- Agency: Howard IP Law Group, PC
- Main IPC: H03M1/12
- IPC: H03M1/12

Abstract:
An analog to digital converter device including: an input to receive a radio frequency (RF) signal; a plurality of delay elements coupled in series to the input, wherein each element has an output configured to provide the RF signal with a temporal delay corresponding to a different number of the delay elements; a sample rate reduction system having a plurality of inputs each being coupled to a corresponding one of the delay element outputs, and configured to sample the delayed RF signals and provide M-sample outputs, each of the M-sample outputs being sampled at a reduced sampling rate equal to the sampling rate divided by M, M being an integer sample rate reduction value; and an Nth order complex bandpass filter coupled to the sample rate reduction system, the complex bandpass filter being configured to filter each of the M-sample outputs to obtain a plurality of complex baseband signals.
Public/Granted literature
- US20090179786A1 DIRECT RF COMPLEX ANALOG TO DIGITAL CONVERTER Public/Granted day:2009-07-16
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