Complementary bowtie dipole-slot antenna
AssigneeLockheed Corporation
InventorsEduardo E. Viladevall, William N. Moule
Life of this patent
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Abstract
The antenna system includes a complementary "bowtie" dipole-slot antenna, the antenna having symmetrical halves about a plane of symmetry. The two halves of the antenna are slanted at the plane of symmetry such that the total included angle between the halves is between 70 degrees and 120 degrees. A ground plane is positioned between the halves of the antenna extending through the plane of symmetry. A circuit is included for independently exciting the halves of the antenna. In a second embodiment the ground plane incorporates a pair of notch antennas. Thus, both vertical and horizontal polarization can be achieved independent of each other.
Claims11
An antenna system comprising:
- a complementary bowtie dipole-slot antenna having dipole portions, peripheral edge portions, and slot portions defined by said dipole portions and said peripheral edge portions, said antenna having symmetrical halves about a plane of symmetry with each half including a said dipole portion, said halves slanted at said plane of symmetry such that the total included angle between said halves is between 70 degree and 120 degrees;
- a ground plane positioned between said halves of said antenna coincident through said plane of symmetry;
- and
- circuit means for independently exciting said halves of said antenna.
An antenna system comprising:
- a complementary bowtie dipole-slot antenna having dipole portions, peripheral edge portions, and slot portions defined by said dipole portions and said peripheral edge portions, said antenna having symmetrical halves about a plane of symmetry with each half including a said dipole portion, said halves slanted at said plane of symmetry such that the total included angle between said halves is between 70 degrees and 120 degrees;
- a ground plane positioned between said halves of said antenna coincident through said plane of symmetry;
- circuit means for independently exciting said halves of said antenna;
- a pair of notch antennas, said pair of notch antennas having the notch portions thereof mounted in said ground plane;
- and
- second circuit means for individually feeding said notch antennas.
Dependencies are inferred from the claim text.