The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2019
Filed:
Aug. 20, 2013
Spirent Communications, Inc., Sunnyvale, CA (US);
John Douglas Reed, Arlington, TX (US);
Spirent Communications, Inc., San Jose, CA (US);
Abstract
A method is provided for generating and transmitting a test signal for an over-the-air test of a device-under-test that is in simulated motion. The method includes dithering Doppler shifts of a carrier frequency of the test signal on sub-path components of the test signal to produce slightly different frequencies per sub-path component, wherein the sub-path components are at a first and second polarization orientations. Dithering Doppler shifts can include dithering a first sub-path component at the first polarization orientation while keeping this sub-path component at the second polarization orientation at the original Doppler shift of the carrier frequency of the test signal, or keeping a first sub-path component at the first polarization orientation at the carrier frequency of the test signal while dithering this sub-path component at the second polarization orientation. Dithering Doppler shifts can include dithering sub-path components at the first and the second polarization orientation.