Fractal antennas and fractal resonators
First Claim
1. An antenna undefined by an opening angle and having at least one element whose physical shape is defined substantially as a deterministic fractal of iteration N≧
- 2 for at least a portion of said element.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna includes at least one element whose physical shape is at least partially defined as a second or higher iteration deterministic fractal. The resultant fractal antenna does not rely upon an opening angle for performance, and may be fabricated as a dipole, a vertical, or a quad, among other configurations. The number of resonant frequencies for the fractal antenna increases with iteration number N and more such frequencies are present than in a prior art Euclidean antenna. Further, the resonant frequencies can include non-harmonically related frequencies. At the high frequencies associated with wireless and cellular telephone communications, a second or third iteration, preferably Minkowski fractal antenna is implemented on a printed circuit board that is small enough to fit within the telephone housing. A fractal antenna according to the present invention is substantially smaller than its Euclidean counterpart, yet exhibits at least similar gain, efficiency, SWR, and provides a 50 Ω termination impedance without requiring impedance matching.
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Citations
20 Claims
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1. An antenna undefined by an opening angle and having at least one element whose physical shape is defined substantially as a deterministic fractal of iteration N≧
- 2 for at least a portion of said element.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A fractal antenna coupleable to a transceiver unit, the antenna comprising:
at least one element whose physical shape is defined substantially as a deterministic fractal of iteration N≧
2 for at least a portion of said element, said antenna being undefined by an opening angle.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A fractal resonating system, comprising:
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an inductor including an element portion whose physical shape is defined substantially as a deterministic fractal of iteration N≧
2 for at least a portion of said element; and
capacitance coupled with said inductor to define at least one resonant frequency for said system, including frequencies non-harmonically related to each other.
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Specification