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:
Jul. 03, 2012
Filed:
Jan. 15, 2009
Mohamed Ahmed Aboukhousa, Rolla, MO (US);
Reza Zoughi, Wildwood, MO (US);
Sergiy Kharkivskiy, Rolla, MO (US);
Mohamed Ahmed AbouKhousa, Rolla, MO (US);
Reza Zoughi, Wildwood, MO (US);
Sergiy Kharkivskiy, Rolla, MO (US);
The Curators of the University of Missouri, Columbia, MO (US);
Abstract
Analyzing a device under test ('DUT') at higher frequencies. A phase shifter varies the phase of a standing wave on a transmission line coupled to the DUT. The standing wave magnitude is sampled at each of the phase shifts and one or more DUT characteristics are determined as a function of the sampled magnitudes and phase shifts. Further aspects include a related phase shifter comprising a waveguide having a plurality of sub-resonant slots formed therein and having active elements for loading the slots to control the phase shift applied to the signal.