Back to results
US 2005/0088352 A1Published application
Spherical ring antenna
AssigneeHarris Corporation
InventorFrancis Parsche
Life of this patent
Estimating the term…
Abstract
An antenna includes a radiating ring element formed as a spherical sector or about a one-half wavelength circumference in natural resonance for obtaining uniform current distribution and enhancing the gain relative to the size of the antenna. A capacitive element, such as a gap, can be formed therein for forcing the radiating ring element to resonance. A variometer feeds the radiating ring element and is operative for varying feed impedance.
Claims29
An antenna comprising:
- a radiating ring element formed as a spherical sector having about a one-half wavelength circumference in natural resonance for obtaining uniform current distribution and enhancing the gain relative to the size of the antenna.
An antenna comprising:
- a radiating ring element formed as a spherical sector and having a capacitive element formed therein for forcing the radiating ring element to resonance and a circumference that enhances the gain relative to the size of the antenna.
An antenna comprising:
- a radiating ring element formed as a spherical sector and having a circumference dimensioned at a natural resonance for obtaining uniform current distribution and enhancing the gain relative to the size of the antenna;
- and
- a variometer feeding the radiating ring element and operative for varying the feed impedance.
Dependencies are inferred from the claim text.