Antenna, component and methods
First Claim
1. An antenna comprising:
- a dielectric element having a first dimension and a second dimension, said element being deposited at least partially on a ground plane;
a conductive coating deposited on the dielectric element, the conductive coating having a first portion forming a first resonator and a second portion forming a second resonator; and
a feed structure coupled to the conductive coating;
wherein open ends of the first resonator and the second resonator are separated by a non-conductive slot so as to at least electromagnetically couple the first resonator and the second resonator, and to form a resonant structure with at least the ground plane.
2 Assignments
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Accused Products
Abstract
An antenna component (and antenna) with a dielectric substrate and a plurality of radiating antenna elements on the surface of the substrate. In one embodiment, the plurality comprises two (2) elements, each of them covering one of the opposite heads and part of the upper surface of the device. The upper surface between the elements comprises a slot. The lower edge of one of the antenna elements is galvanically coupled to the antenna feed conductor on a circuit board, and at another point to the ground plane, while the lower edge of the opposite antenna element, or the parasitic element, is galvanically coupled only to the ground plane. The parasitic element obtains its feed through the electromagnetic coupling over the slot, and both elements resonate at the operating frequency. Omni-directionality is also achieved. Losses associated with the substrate are low due to the simple field image in the substrate.
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Citations
50 Claims
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1. An antenna comprising:
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a dielectric element having a first dimension and a second dimension, said element being deposited at least partially on a ground plane;
a conductive coating deposited on the dielectric element, the conductive coating having a first portion forming a first resonator and a second portion forming a second resonator; and
a feed structure coupled to the conductive coating;
wherein open ends of the first resonator and the second resonator are separated by a non-conductive slot so as to at least electromagnetically couple the first resonator and the second resonator, and to form a resonant structure with at least the ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A radio frequency device, comprising:
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an antenna deposited substantially on a dielectric substrate having a longitudinal direction and a transverse direction;
a conductive coating deposited on the dielectric substrate, the conductive coating having a first portion that forms a first resonator and a second portion that forms a second resonator, the first resonator and the second resonator separated at open ends by a non-conductive slot to provide frequency tuning;
a feed structure coupled to the conductive coating; and
a resonant structure formed by the first resonator, the second resonator, the substrate, and a ground plane deposited on the substrate and configured to operate within a selected frequency band. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An antenna manufactured according to the method comprising:
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mounting a dielectric element at least partially on a ground plane disposed on a substrate;
disposing a conductive coating as a first portion and a second portion on the dielectric element;
disposing a feed structure coupled to at least one of the first portion and the second portion; and
forming a non-conductive slot coupled between the first portion and the second portion. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for tuning an antenna disposed on a substrate, comprising:
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setting an electrical length of a first conductive element between the first portion of a first radiating element and a ground plane;
setting an electrical length of a second conductive element between the second portion of a second radiating element to the ground plane to achieve frequency tuning of the antenna;
setting at least one of a feed structure length or connection point to the first portion of the radiating element; and
setting at least one dimension of the ground plane to adjust an omni-directional antenna radiation pattern. - View Dependent Claims (38)
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39. An antenna comprising:
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an antenna component having a dielectric substrate and a conductive layer that is at least partially coupled to a ground plane, the conductive layer partitioned at least in part by a non-conductive slot;
wherein the non-conductive slot forms at least in part a first radiating element and a second radiating element, the first and the second radiating elements having an effective electrical length being related at least in part to a dimension of the non-conductive slot; and
wherein a resonant structure is formed substantially based on the first radiating element, the second radiating element, the non-conductive slot, the ground plane proximate to the antenna component, and location of at least one feed point connection of at least one of the first radiating element and the second radiating elements, so to provide a substantially omni-directional radiation pattern during use.
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40. An antenna component for implementing an antenna of a radio device, the antenna component comprising:
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a dielectric element comprising;
an upper surface and a lower surface;
a first and a second head; and
a first and a second side;
a first antenna element disposed substantially on a surface of the dielectric element and adapted to be connected to a feed conductor of the antenna at a first point, and to a ground plane of the radio device at a second point, the first antenna element comprising the first head and a first portion of the upper surface;
a second antenna element disposed substantially on a surface of the dielectric element and adapted to be connected to the ground plane at a third point, the second antenna element comprising the second head and a second portion of the upper surface; and
a slot formed between the first portion and the second portion of the upper surface to couple electromagnetic energy between the first antenna element and the second antenna element;
wherein;
the first and second points are formed on the lower surface of the dielectric element proximate to an edge of the first head; and
the third point is formed on the lower surface of the substrate proximal to an edge of the second head.
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- 41. The antenna component according to claim 41, wherein the first antenna element, the second antenna element, the dielectric element, and the ground plane form a quarter-wave resonator adapted to resonate at a specified operating frequency.
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46. The antenna component according to claim 46, wherein the at least one turn is formed in at least one of the first and the second antenna elements as a projection extended between areas belonging to opposing ones of said antenna elements.
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48. An antenna component for implementing an antenna of a radio device, said component comprising:
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a first and a second antenna element; and
a dielectric substrate with an upper and lower surface, a first and a second head, and a first and a second side, wherein said first antenna element is located on at least one of said upper and lower surfaces of the substrate, and is arranged to be connected to feed conductor of the antenna at a first point, and to ground plane of the radio device at a second point, and wherein said second antenna element is located on at least one of said upper and lower surfaces of the substrate, and is arranged to be connected to the ground plane at a third point. - View Dependent Claims (49)
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50. A method of forming an antenna apparatus having first and second antenna elements, the method comprising:
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providing a substrate formed substantially from a material selected from the group consisting of;
quartz, gallium-arsenide or silicon; and
forming a slot between the antenna elements by;
growing a metal layer on the surface of the substrate; and
removing the metal layer over the slot to be formed by at least one of a lithographic exposure or chemical etching process.
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Specification