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Christopher H Behnke

from New Whiteland, IN
Age ~47
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Also known as:
Christopher Herbert Behnke, Chris H Behnke, Christophe H Behnke
Phone and address:
30 Grassy Dr, Whiteland, IN 46184
(317) 535-1908
Related to:
Lawrence J Murphy, 63Jutta Christiane Behnke, 70Jutta C Runles, 71Karrie A Runles, 62Tyson J Behnke, 42Frank L Runles, 63
Connected to:
Alexander R Behnke, 40Allyson E Behnke, 40Bernardita Behnke, 63Bonnie S Behnke, 59Cathryn A Behnke, 64Crystal M Behnke, 50Dan A Behnke, 37Dawn M Behnke, 47Fred H Behnke, 81Gail A Behnke, 77

Christopher Behnke Phones & Addresses

  • 30 Grassy Dr, Whiteland, IN 46184 (317) 535-1908
  • New Whiteland, IN
  • Swannanoa, NC
  • Austin, TX
  • Hazelwood, MO
  • Asheville, NC
  • Georgetown, TX
  • Killeen, TX
  • East Amherst, NY

Publications

Us Patents

Technique For The Measurement Of I/Q Impairments Associated With A Sampled Complex Signal

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US Patent:
8446937, May 21, 2013
Filed:
Apr 9, 2012
Appl. No.:
13/442456
Inventors:
Stephen L. Dark - Austin TX, US
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H04B 3/46
H04B 17/00
H04Q 1/20
US Classification:
375224, 375345, 4552451, 4552501
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Measuring The I/Q Impairments Of A Receiver

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US Patent:
8559560, Oct 15, 2013
Filed:
Apr 9, 2012
Appl. No.:
13/442367
Inventors:
Stephen L. Dark - Austin TX, US
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H03D 3/00
H03K 9/06
US Classification:
375322, 375340, 375346
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Mechanism For Measuring Transmitter Impairments Using Offset Local Oscillators

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US Patent:
20130243057, Sep 19, 2013
Filed:
May 3, 2013
Appl. No.:
13/886986
Inventors:
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H04B 17/00
US Classification:
375224
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Mechanisms For Measuring The I/Q Impairments Of A Receiver

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US Patent:
20130243059, Sep 19, 2013
Filed:
May 3, 2013
Appl. No.:
13/887109
Inventors:
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H04B 17/00
US Classification:
375224
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Measurement Of I/Q Impairments From A Sampled Complex Signal

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US Patent:
20130243060, Sep 19, 2013
Filed:
May 3, 2013
Appl. No.:
13/887153
Inventors:
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H04L 1/24
US Classification:
375224
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Measurement Of Transmitter Impairments Using Offset Local Oscillators

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US Patent:
8442150, May 14, 2013
Filed:
Feb 24, 2012
Appl. No.:
13/404896
Inventors:
Stephen L. Dark - Austin TX, US
Christopher J. Behnke - Austin TX, US
Assignee:
National Instruments Corporation - Austin TX
International Classification:
H04K 1/02
H04L 25/03
H04L 25/49
US Classification:
375296, 375350, 455126
Abstract:
Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.

Linearization Of Radio Frequency Transceivers And Test Systems Through Dynamic Extraction Of Complex Nonlinear Models Thereof

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US Patent:
20150118971, Apr 30, 2015
Filed:
Jul 11, 2014
Appl. No.:
14/328898
Inventors:
- Austin TX, US
Christopher J. Behnke - Austin TX, US
Syed Jaffar Shah - Austin TX, US
International Classification:
H04W 24/06
US Classification:
455 6714
Abstract:
Dynamic characterization of complex high-order nonlinearity in transmitter (TX) and receiver (RX) signal chains of transceiver systems can be efficiently and accurately performed. A loopback connection may be used to facilitate self-characterization. Appropriate RX and TX configuration settings may be developed to facilitate de-coupling of individual RX and TX nonlinearities from measured cascade nonlinearity. The system's high-order response to a two-tone signal generation may be measured, and complex mathematical analysis may be performed to identify and isolate passband nonlinear components to extract a high-order memory-less model for the system. The extracted system model may be used in the corrective and non-iterative pre-distortion of generated signals and in the post-distortion of received signals to improve linearity performance of the transceiver. The memory-less model and the analytical system are effective in improving performance of class-A-amplifier-based signal chains that are common in test and measurement systems and channel emulation systems.

Correction Of I/Q Impairments In Transmitters And Receivers

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US Patent:
20140247902, Sep 4, 2014
Filed:
Mar 5, 2014
Appl. No.:
14/198407
Inventors:
- Austin TX, US
Christopher J. Behnke - Austin TX, US
Assignee:
NATIONAL INSTRUMENTS CORPORATION - Austin TX
International Classification:
H04B 15/00
US Classification:
375296, 375350
Abstract:
Communication devices and associated methods for reducing I/Q impairments in signals used by the communication devices are described. A transmitter device may perform filtering (or matrix multiplication) on digital I and Q signals to pre-correct them before converting them into analog I and Q signals. The pre-correction may pre-compensate for I/Q impairments which have not been introduced yet, but which will subsequently be introduced during digital-to-analog conversion, I/Q modulation, or other processing that occurs to produce a transmission signal from the original digital I and Q signals. A receiver device may receive a transmission signal, produce digital I and Q signals from the received signal, and perform filtering on the digital I and Q signals to correct I/Q impairments at a plurality of frequency offsets.
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Christopher H Behnke from New Whiteland, IN, age ~47 Get Report