Invention Grant
- Patent Title: System and method for improved resolution pulsed radio frequency (RF) measurements with phase coherence
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Application No.: US14213291Application Date: 2014-03-14
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Publication No.: US09753071B1Publication Date: 2017-09-05
- Inventor: Jon S. Martens
- Applicant: ANRITSU COMPANY
- Applicant Address: US CA Morgan Hill
- Assignee: ANRITSU COMPANY
- Current Assignee: ANRITSU COMPANY
- Current Assignee Address: US CA Morgan Hill
- Agency: Tucker Ellis LLP
- Main IPC: G01R27/28
- IPC: G01R27/28 ; G01R27/32

Abstract:
A method for obtaining improved resolution pulsed radio frequency (RF) measurements with phase coherence for a device under test (DUT) using a vector network analyzer (VNA) includes generating a pulsed RF test signal, transmitting the pulsed RF test signal to the DUT and receiving a signal from the DUT at the VNA in response to the pulsed RF test signal. An intermediate frequency (IF) signal is generated using a local oscillator (LO) signal. A phase of the LO signal is shifted by a prescribed amount while generating the IF signal. The IF signal is then sampled over multiple pulses and measurements are constructed from the measurements. A discrete Fourier transform (DFT) is then applied to the constructed measurements.
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