Cosecant squared antenna radiation pattern
AssigneeThe Government of the United States, as represented by the Secretary of the Army
InventorEmanuel Merulla
Life of this patent
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Abstract
Various embodiments are described that relate to an antenna. In one embodiment, the antenna can be a low profile, multi-band (e.g., dual band), emulated GPS constellation antenna. In one embodiment, the antenna can form a cube with two open sides and four circuit board sides. The four circuit boards can include a first hardware portion that allows functioning in a higher frequency band and a second hardware portion that allows functioning in a lower frequency band.
Claims20
A system, that is at least partially hardware, comprising:
- a reception component configured to receive an energy to excite an antenna;
- and
- a radiation component configured to cause the antenna to radiate a signal with a cosecant-squared antenna radiation pattern in response to the antenna being excited by the energy,
- the antenna comprises a spiral configured to radiate the signal and
- the antenna comprises a spiral trap circuit, physically coupled to the spiral, configured to cause the spiral to radiate the signal at a higher frequency band when open and configured to cause the spiral to radiate the signal at a lower frequency band when closed.
A system, that is at least partially hardware, comprising:
- a reception component configured to receive an energy to excite an antenna;
- and
- a radiation component configured to cause the antenna to radiate a signal with a cosecant-squared antenna radiation pattern in response to the antenna being excited by the energy,
- the antenna comprising a spiral configured to radiate the signal,
- the antenna comprising a matching leg configured to cause a return loss of the antenna to be lower in the higher frequency band, and
- the antenna comprising a spiral trap circuit, physically coupled to the spiral, configured to cause the spiral to radiate the signal at a higher frequency band when open and configured to cause the spiral to radiate the signal at a lower frequency band when closed, with the spiral trap circuit comprising an inductor parallel with a capacitor.
The antenna comprising:
- a spiral configured to radiate a signal with a cosecant-squared antenna radiation pattern;
- and
- a spiral trap circuit, physically coupled to the spiral, configured to cause the spiral to radiate the signal at a higher frequency band when open and configured to cause the spiral to radiate the signal at a lower frequency band when closed,
- where a reception component is configured to receive an energy to excite the antenna and
- where a radiation component configured to cause the antenna to radiate the signal with the cosecant-squared antenna radiation pattern in response to the antenna being excited by the energy.
Dependencies are inferred from the claim text.