Pattern shaping of RF emission patterns
A metallic shaping plate located in the interior housing of a wireless device is disclosed. The metallic shaping plate may influence a radiation pattern being generated by a horizontal antenna array. The result may be an increase in the gain of the array.
1. An antenna system comprising:
a plurality of antenna elements for selective coupling to a radio frequency feed port;
a housing enclosing the plurality of antenna elements;
a ground component associated with one of the plurality of antenna elements, wherein a portion of the ground component is shaped to form a modified dipole in conjunction with the antenna element; and
one or more loading structures configured to slow down electrons to changing a resonance of the modified dipole and to minimize the size of the antenna system.
2. The antenna system of claim 1 , wherein at least two of the plurality of antenna elements generate an omnidirectional radiation pattern having less directionality than a directional radiation pattern of a single antenna element when selectively coupled to the radio frequency feed port.
3. The antenna system of claim 1 , further comprising a substrate including the plurality of antenna elements.
4. The antenna system of claim 1 , wherein the plurality of antenna elements are located on a first side of the substrate.
5. The antenna system of claim 2 , further comprising a shaping element coupled to the antenna system for changing the omnidirectional radiation pattern.
6. The antenna system of claim 1 , wherein two or more of the plurality of antenna elements are configured to transmit and receive horizontal polarization.
7. The antenna system of claim 1 , wherein two or more of the plurality of antenna elements are configured to transmit and receive vertical polarization.
8. The antenna system of claim 1 , wherein the plurality of antenna elements includes a first set of antenna elements arranged in a first plane, and a second set of antenna elements arranged perpendicular to the first plane.
9. The antenna system of claim 8 , wherein the first set of antenna elements generates a first radiation pattern having a polarization substantially in the first plane, and the second set of antenna elements generates a second radiation pattern having a polarization substantially perpendicular to the first plane.
10. The antenna system of claim 9 , wherein at least one of the loading structures is arranged in a third plane parallel to the first plane.
11. The antenna system of claim 1 , wherein at least one of the loading structures has a layout corresponding to an arrangement of antenna elements from the plurality of antenna elements.
12. The antenna system of claim 1 , wherein at least one of the loading structures includes a first portion located a first distance from the antenna array, and a second portion located a second distance from the antenna array, and wherein the second distance of the second portion is greater than the first distance of the first portion.