1. A multi-band antenna having similar impedance and radiation patterns in a plurality of different selected frequency bands and an overall physical size that is less than that of a rectangular single band antenna operating at a lowest selected frequency band of said plurality of different selected frequency bands, comprising:
a conductive radiating structure that includes at least two levels of detail in its geometric configuration,
a first level of detail being formed by a plurality of electromagnetically coupled geometric elements comprising the majority of the structure,
said geometric elements having empty spaces defined there between to
(a) provide a long and winding path for an electric current on the conductive radiating structure and cause it to travel a greater distance than over a solid structure to resonate at a lower frequency, and
(b) present to the electric current an edge-rich periphery to enhance the radiation process,
a second level of detail being formed by the overall geometric shape of the structure, and
the length of the perimeter of the free edges of the geometric elements comprising the structure being greater than the length of the common borders between adjacent geometric elements.
2. The multi-band antenna as set forth in claim 1, wherein at least some of the plurality of geometric elements have perimeter regions comprising a curve.
3. The multi-band antenna as set forth in claim 1, wherein at least some of the plurality of geometric elements have perimeter regions comprising both linear and non-linear portions.
4. The multi-band antenna set forth in claim 1, wherein the antenna has a small size compared to a circular, square or triangular antenna whose perimeter can be circumscribed in the multilevel structure and which operates at the lowest frequency band of the multi-band antenna.
5. The multi-band antenna set forth in claim 1, wherein at least a portion of said at least one multilevel structure comprises a printed copper sheet on a printed circuit board.
6. The multi-band antenna set forth in claim 1, wherein said antenna is included in a portable communications device.
7. A multi-band antenna having similar impedance and radiation patterns in a plurality of different selected frequency bands and an overall physical size that is less than that of a rectangular single band antenna operating at a lowest selected frequency band of said plurality of different selected frequency bands, comprising:
a conductive radiating structure that includes at least two levels of detail in its geometric configuration,
a first level of detail being formed by a plurality of electromagnetically coupled geometric elements comprising the majority of the structure,
said geometric elements having empty spaces defined there between to
(a) provide a long and winding path for an electric current on the conductive radiating structure and cause it to travel a greater distance than over a solid structure to resonate at a lower frequency, and
(b) present to the electric current an edge-rich periphery to enhance the radiation process and increase the bandwidth of radiations in at least one frequency band of said plurality of different selected frequency bands, and
a second level of detail being formed by the overall geometric shape of the structure, and
the length of the perimeter of the free edges of the geometric elements comprising the structure being greater than the length of the common borders between adjacent geometric elements.
8. The multi-band antenna as set forth in claim 7, wherein at least some of the plurality of geometric elements have perimeter regions comprising a curve.
9. The multi-band antenna as set forth in claim 7, wherein at least some of the plurality of geometric elements have perimeter regions comprising both linear and non-linear portions.
10. The multi-band antenna set forth in claim 7, wherein the antenna has a small size compared to a circular, square or triangular antenna whose perimeter can be circumscribed in the multilevel structure and which operates at the lowest frequency band of the multi-band antenna.
11. The multi-band antenna set forth in claim 7, wherein at least a portion of said at least one multilevel structure comprises a printed copper sheet on a printed circuit board.
12. The multi-band antenna set forth in claim 7, wherein said antenna is included in a portable communications device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An odor eliminating powder composition comprising:
aluminum potassium sulfate in an amount of between 22% and 62% by weight of the composition;
zinc oxide in an amount of between 8% and 36% by weight of the composition; and
zinc undecylenate in an amount of between 6% and 34% by weight of the composition.
2. The composition as recited in claim 1 further comprising:
Kaolin in an amount of between 3% and 28% by weight of the composition.
3. The composition as recited in claim 1 further comprising:
silicone dioxide in an amount of between 0.5% and 15% by weight of the composition.
4. The composition as recited in claim 1 further comprising:
talc in the amount of between 1% and 18% by weight of the composition.
5. The composition as recited in claim 1 further comprising:
corn starch in an amount of between 1% and 18% by weight of the composition.
6. An odor eliminating powder composition comprising:
aluminium potassium sulfate in an amount of between 22% and 62% by weight of the composition;
zinc oxide in an amount of between 8% and 36% by weight of the composition;
zinc undecylenate in an amount of between 6% and 34% by weight of the composition;
Kaolin in an amount of between 2% and 28% by weight of the composition; and
silicone dioxide in an amount of between 0.5% and 15% by weight of the composition.
7. The composition as recited in claim 6 further comprising:
talc in an amount of between 1% and 18% by weight of the composition.
8. The composition as recited in claim 6 further comprising:
corn starch in an amount of between 1% and 18% by weight of the composition.