Directional antenna array

Details Directional antenna array Directional antenna array

2007-04-17

2007-04-17

Dinh, Trinh Vo (Department: 2821)

Communications: radio wave antennas

Antennas

Logarithmically periodic

C343S815000, C343S817000, C343S818000, C343S834000

Reexamination Certificate

active

10661652

ABSTRACT:
A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

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