Antenna device
First Claim
1. An apparatus comprising:
- a housing having a surface for placement against a user of the apparatus;
a circuit in the housing; and
an antenna coupled to the circuit, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to the surface of the housing, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the surface of the housing;
wherein the antenna is configured to emit an electromagnetic field that (1) has an electric field polarized in a direction that reduces propagation loss in tissue of the user compared to propagation loss associated with a propagation direction parallel to a surface of the user, and (2) has a substantial part that propagates in a direction along the surface of the user.
2 Assignments
0 Petitions
Accused Products
Abstract
An antenna device configured to be used at or in proximity to a user, the antenna device includes: an antenna structure having a conducting element, the conducting element extending over a length of between 1/16 of a wavelength and a full wavelength in a direction substantially orthogonal to a surface of the user, when the antenna device is provided in an intended operational position. A device includes: a housing having an operational position with respect to a user of the device; and an antenna structure coupled to the housing and having a conducting element, wherein the antenna structure is configured to emit an electromagnetic field so that the electromagnetic field propagates in a direction having a major directional vector that corresponds with a surface of a user using the device when the housing is at the operative position.
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Citations
49 Claims
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1. An apparatus comprising:
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a housing having a surface for placement against a user of the apparatus; a circuit in the housing; and an antenna coupled to the circuit, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to the surface of the housing, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the surface of the housing; wherein the antenna is configured to emit an electromagnetic field that (1) has an electric field polarized in a direction that reduces propagation loss in tissue of the user compared to propagation loss associated with a propagation direction parallel to a surface of the user, and (2) has a substantial part that propagates in a direction along the surface of the user.
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2. An apparatus comprising:
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a housing having a surface for placement against, or for touch by, a user of the apparatus; a circuit in the housing; and an antenna coupled to the circuit, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to the surface of the housing, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the surface of the housing; wherein at least a part of the first segment extending along the first direction with the first major directional component perpendicular to the surface of the housing is located away from a wall of the housing, and/or at least a part of the second segment extending along the second direction with the second major directional component parallel to the surface of the housing is located away from the wall of the housing. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising:
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a housing; a circuit board in the housing; and an antenna coupled to the circuit board, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit board and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to a plane of the circuit board, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the plane of the circuit board; wherein at least a part of the first segment extending along the first direction with the first major directional component perpendicular to the plane of the circuit board is located away from a wall of the housing, and/or at least a part of the second segment extending along the second direction with the second major directional component parallel to the plane of the circuit board is located away from the wall of the housing. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. An apparatus comprising:
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a housing; a circuit board in the housing; and an antenna coupled to the circuit board, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit board and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to a plane of the circuit board, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the plane of the circuit board; wherein the antenna is configured to emit an electromagnetic field that (1) has an electric field polarized in a direction that reduces propagation loss in tissue of a user compared to propagation loss associated with a propagation direction parallel to a surface of the user of the apparatus, and (2) has a substantial part that propagates in a direction along the surface of the user.
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48. An apparatus comprising:
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a housing; a circuit board in the housing; an antenna coupled to the circuit board, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit board and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to a plane of the circuit board, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the plane of the circuit board a parasitic antenna element; and a conducting element connected to the parasitic antenna element; and wherein the parasitic antenna element is connected to the conducting element at a first position, and wherein the antenna has an excitation point opposite from the first position.
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49. An apparatus comprising:
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a housing; a circuit board in the housing; an antenna coupled to the circuit board, the antenna having a first segment and a second segment, the first segment coupled to transmit energy between the circuit board and the second segment, wherein the first segment extends along a first direction having a first major directional component that is perpendicular to a plane of the circuit board, and wherein the second segment extends along a second direction having a second major directional component that is parallel to the plane of the circuit board a parasitic antenna element; and a conducting element connected to the parasitic antenna element; and wherein a combined length of the parasitic antenna element and an effective length of the conducting element is at least a quarter of a wavelength.
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Specification