Multi-beam antenna

Details Multi-beam antenna Multi-beam antenna

2011-08-09

2011-08-09

Phan, Tho G (Department: 2821)

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

C343S7000MS, C343S753000

Reexamination Certificate

active

07994996

ABSTRACT:
A plurality of antenna elements on a dielectric substrate are adapted to launch or receive electromagnetic waves in or from a direction substantially away from either a convex or concave edge of the dielectric substrate, wherein at least two of the antenna elements operate in different directions. Slotlines of tapered-slot endfire antennas in a first conductive layer of a first side of the dielectric substrate are coupled to microstrip lines of a second conductive layer on the second side of the dielectric substrate. A bi-conical reflector, conformal cylindrical dielectric lens, or discrete lens array improves the H-plane radiation pattern. Dipole or Yagi-Uda antenna elements on the conductive layer of the dielectric substrate can be used in cooperation with associated reflective elements, either alone or in combination with a corner-reflector of conductive plates attached to the conductive layers proximate to the endfire antenna elements.

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