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US 8,711,044 B2Granted
Antenna arrangement and antenna housing
AssigneeNokia Corporation
InventorsAimo Arkko, Jani Ollikainen
Life of this patent
Estimating the term…
Abstract
An antenna arrangement including an antenna occupying at least a first plane; a conductive structure that is isolated from the antenna but is arranged to be parasitically fed by the antenna, the conductive structure having a slot and occupying at least a second plane different to but adjacent the first plane.
Claims23
An apparatus comprising:
- an antenna occupying at least a first plane;
- and
- a conductive structure that is isolated from the antenna such that there is no dc current between the antenna and the conductive structure but is arranged to be parasitically fed by the antenna, the conductive structure having a slot and occupying at least a second plane different to but adjacent the first plane,
- wherein the conductive structure is at least part of an external housing for a mobile cellular telephone,
- wherein the antenna is an internal antenna located inside the housing,
- wherein the housing has a face bounded by edges and the slot is positioned wholly within the face,
- wherein the antenna is positioned adjacent the slot and
- wherein the conductive structure comprises a metallic covering of the mobile cellular telephone and the slot is covered with a dielectric material, the slot being further defined by an absence of the metallic covering.
5 more elements
A mobile cellular telephone housed within a housing that defines an interior cavity an apparatus comprising:
- an antenna positioned within the cavity;
- and
- a conductive structure which is at least a part of the housing,
- wherein the conductive structure is isolated from the antenna such that there is no dc current between the antenna and the conductive structure but is arranged to be parasitically fed by the antenna,
- wherein the conductive structure comprises a slot, wholly within a face of the conductive structure, and
- wherein the antenna is adjacent the slot and wherein the conductive structure comprises a metallic covering of the mobile cellular telephone and the slot is covered with a dielectric material, the slot being further defined by an absence of the metallic covering.
3 more elements
An antenna arrangement comprising:
- an antenna having a first resonant wavelength, λ;
- and
- a conductive structure that is isolated from the antenna such that there is no dc current between the antenna and the conductive structure but is indirectly fed by the antenna, the conductive structure having a slot wholly within a face of the conductive structure,
- wherein the slot that has an electrical length that corresponds to a multiple of λ/31, the conductive structure forming at least part of an external housing for a mobile cellular telephone,
- wherein the antenna is internal of the housing and located adjacent the slot and
- wherein the conductive structure comprises a metallic covering of the mobile cellular telephone and the slot is covered with a dielectric material, the slot being further defined by an absence of the metallic covering.
3 more elements
An apparatus comprising a housing for a mobile cellular telephone, with exterior metallization, that defines an interior cavity and an antenna arrangement positioned within the cavity, wherein the antenna arrangement comprises:
- an antenna occupying at least a first plane;
- and
- a conductive structure that is isolated from the antenna such that there is no dc current between the antenna and the conductive structure but is arranged to be parasitically fed by the antenna, the conductive structure having a slot wholly within a face of the conductive structure, the conductive structure occupying at least a second plane different to but parallel to the first plane,
- wherein the exterior metallization provides the conductive structure and the slot provides an electromagnetic aperture to the interior cavity,
- wherein the conductive structure comprises a metallic covering of the mobile cellular telephone and the slot is covered with a dielectric material, the slot being further defined by an absence of the metallic covering;
- and
- wherein the antenna is positioned adjacent the slot.
4 more elements
Dependencies are inferred from the claim text.