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US 6,297,782 B1Granted
Modular hub array antenna
AssigneeGabriel Electronics Incorporated
InventorsPeter G. Matthews, David Kokotoff
Life of this patent
Estimating the term…
Abstract
A modular array antenna. The antenna has a plurality of radiating elements fed by a hybrid waveguide/stripline network that includes a waveguide power splitter for coupling power into the stripline network. Components of the array antenna may be substituted for selecting polarization and beamwidth.
Claims4
An array antenna characterized by a radiation pattern, the array antenna comprising:
- a. a plurality of radiating elements, each element radiating electromagnetic radiation into a region of space defined about a primary radiation direction, the plurality of radiating elements characterized by a dominant polarization;
- b. a stripline network for feeding each of the radiating elements;
- c. a waveguide power splitter network for distributing power into the stripline network;
- and
- d. a choke flange substantially surrounding the radiating elements in a plane transverse to the primary radiation direction.
2 more elements
An array antenna characterized by a radiation pattern, the array antenna comprising:
- a. a plurality of radiating elements, each element radiating electromagnetic radiation into a region of space defined about a primary radiation direction, the plurality of radiating elements characterized by a dominant polarization;
- b. a stripline network for feeding each of the radiating elements;
- and
- c. a waveguide power splitter network for distributing power into the stripline network, the waveguide power splitter network including:
- i. a waveguide characterized by a height measured between broad parallel faces of the waveguide;
- ii. a septum disposed parallel to the broad faces of the waveguide;
- and
- iii. a step discontinuity in the height of the waveguide.
5 more elements
An array antenna characterized by a radiation pattern, the array antenna comprising:
- a. a plurality of radiating elements, each element radiating electromagnetic radiation into a region of space defined about a primary radiation direction, the plurality of radiating elements characterized by a dominant polarization;
- b. a stripline network for feeding each of the radiating elements;
- and
- c. a waveguide power splitter network for distributing power into the stripline network;
- wherein the dominant polarization of the plurality of radiating elements may be changed by substitution of the plurality of radiating elements and insertion of a waveguide polarization rotator between the stripline network and the plurality of radiating elements.
2 more elements
Dependencies are inferred from the claim text.