IP Library › Granted Patent US 10,727,573
Granted Patent B2
US 10,727,573 · App. 15/468,146 · Granted Jul 28, 2020

Cosecant squared antenna radiation pattern

Inventor: Emanuel Merulla (Bel Air, MD)
Assignee: The Government of the United States, as represented by the Secretary of the Army
H01Q1/38H01Q5/335H01Q9/27H01Q21/205
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Quick Facts
Patent No.
US 10,727,573
App. No.
15/468,146
Granted
Jul 28, 2020
Kind
B2
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.

Claims (21)

1. An antenna panel, comprising:

a spiral configured to resonate a signal; and

a spiral trap circuit, physically coupled to the spiral, configured to cause the spiral to resonate the signal at a higher frequency band when open and configured to cause the spiral to resonate the signal at a lower frequency band when closed,

where the antenna panel is configured to, at least partially, have the signal resonate with a cosecant-squared antenna radiation pattern.

2. The antenna panel of claim 1 , the antenna panel being at least part of an antenna, the antenna panel comprising:

a matching leg configured to cause a return loss of the antenna to be lower in the higher frequency band.

3. The antenna panel of claim 2 , comprising:

a matching leg trap circuit, physically coupled to the matching leg, configured to be closed at the lower frequency band and open when at the higher frequency band; and

a coupling hardware component configured to physically couple the antenna to a matching network configured to cause the return loss of the antenna to be lower in the higher frequency band when the matching leg trap circuit is open.

4. The antenna panel of claim 3 ,

where the spiral trap circuit comprises an inductor parallel with a capacitor.

5. The antenna panel of claim 4 ,

where the signal has right hand circular polarization.

6. The antenna panel of claim 5 ,

where the signal is a global positioning system constellation.

7. The antenna panel of claim 1 ,

where the spiral trap circuit comprises an inductor parallel with a capacitor.

8. The antenna panel of claim 1 ,

where the signal has right hand circular polarization.

9. The antenna panel of claim 1 ,

where the signal is a global positioning system constellation.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2017
From: MERULLA, EMANUEL
To: THE GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE ARMY
Reel/Frame 041717/0412 →
Continuity (1)
Related Publication 20180277941A1 · Sep 27, 2018