Microstrip antenna structure

Details Microstrip antenna structure Microstrip antenna structure

1975-10-07

1977-03-15

Lieberman, Eli

Communications: radio wave antennas

Antennas

Microstrip

343853, H01Q 138

Patent

active

040127419

ABSTRACT:
A microstrip antenna radiator is disclosed which includes three edges spaced around its periphery defining three corresponding active slot areas wherein each slot has a different respectively corresponding resonant dimension associated therewith along a direction substantially transverse to the edge which defines the radiating slot. At least two dimensions of an essentially equilateral triangular shape are altered so as to provide the three different resonant dimensions for the radiator. Typically, at least two sides of such a triangular structure are altered such as by the formation of tab extensions or, alternatively, at least two apices of the basic triangular structure are truncated so as to produce different resonant dimensions in the radiator. Various combinations and permutations of such shape alterations may also be employed. Such a triangular microstrip radiator is especially adapted for elliptical or circular polarization and for utilization in arrays of such polarized elements wherein the triangular shape of each element permits a more nearly optimum spacing of the individual elements within one or more arrays.

REFERENCES:
patent: 3803623 (1974-04-01), Charlot
patent: 3947850 (1976-03-01), Kaloi

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