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1 results about "Nadir" patented technology

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The nadir (/ˈneɪdɪər/, also UK: /ˈnædɪər/), (from Arabic: نظير‎ / ALA-LC: naẓīr, meaning "counterpart") is the direction pointing directly below a particular location; that is, it is one of two vertical directions at a specified location, orthogonal to a horizontal flat surface there. Since the concept of being below is itself somewhat vague, scientists define the nadir in more rigorous terms. Specifically, in astronomy, geophysics and related sciences (e.g., meteorology), the nadir at a given point is the local vertical direction pointing in the direction of the force of gravity at that location. The direction opposite of the nadir is the zenith.

Patch antenna with wire radiation elements for high-precision GNSS applications

ActiveUS20190140354A1Reduced directional patternLower levelSimultaneous aerial operationsSubstantially flat resonant elementsNadirPower flow

A right-hand circularly-polarized patch antenna comprising a ground plane and a patch connected to each other with one or more wires for which the wire shape and location of the end points are selected such that they do not cause an antenna mismatch, and the electrical current carried in the wires produces an extra electromagnetic field subtracted from the patch field in the nadir direction.

Owner:TOPCON POSITIONING SYST INC

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