Microstrip antenna

Communications: radio wave antennas – Antennas – With grounding structure

Patent

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Details

343853, H01Q 938

Patent

active

039952770

ABSTRACT:
Microstrip antenna having one or more arrays of resonant dipole radiator elements. The radiator elements have an E coordinate dimension of approximately ##EQU1## A feed line made up of similar, series-connected, semiresonant, approximately half-wave sections distributes energy to and provides the desired phase relationship between the radiator elements. The radiator elements are conductively joined to alternate sides of the feed line at successive junctions of the half-wave sections to provide an array, with the feed line being electrically coupled to each radiator element in the array along an edge of the radiator element that intersects its E coordinate. The H coordinates of the radiator elements lie generally along a straight line through the radiator elements of the array. The radiator elements and feed line sections are in a broad surface which is uniformly spaced from a ground element by a dielectric sheet.

REFERENCES:
patent: 3938161 (1976-02-01), Sanford

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