Radio communication base station antenna
First Claim
1. A radiocommunication base station including, for communicating by radio with mobile stations, at least one antenna system including a casing for fixing said antenna system to a support and at least one radiating slot formed in a conductive plane parallel to a front face of the casing and adapted to emit, in a first direction substantially perpendicular to the front face of the casing, an electric field having a polarisation oriented in a second direction substantially parallel to said front face and perpendicular to an orientation of the slot, and to emit, substantially in the second direction, an electric field having a polarisation oriented substantially in the first direction, the casing having a first operating position in which said second direction is substantially vertical and a second operating position in which said first direction is substantially vertical.
4 Assignments
0 Petitions
Accused Products
Abstract
The base station has an antenna system comprising a housing for fixing it to a support and one or several radiating slots. It is designed for transmitting, in a first direction substantially perpendicular to the front surface of the housing, an electric field with polarization oriented along a second direction substantially parallel to the front surface, and for transmitting, in another direction closer to the second than to the first direction, an electric field with polarization substantially oriented along the first direction. The base station is well adapted to indoor environments in microcells or picocells. It can be fixed vertically on a wall or be horizontally suspended to a ceiling, without requiring separate antenna systems for these two installation modes.
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Citations
17 Claims
- 1. A radiocommunication base station including, for communicating by radio with mobile stations, at least one antenna system including a casing for fixing said antenna system to a support and at least one radiating slot formed in a conductive plane parallel to a front face of the casing and adapted to emit, in a first direction substantially perpendicular to the front face of the casing, an electric field having a polarisation oriented in a second direction substantially parallel to said front face and perpendicular to an orientation of the slot, and to emit, substantially in the second direction, an electric field having a polarisation oriented substantially in the first direction, the casing having a first operating position in which said second direction is substantially vertical and a second operating position in which said first direction is substantially vertical.
- 9. A radiocommunication base station including, for communicating by radio with mobile stations, at least one antenna system including a casing for fixing said antenna system to a support, two parallel radiating slots formed in a conductive plane parallel to a front face of the casing separated by a distance substantially equal to half of a radiated wavelength and means for feedign radio-frequency energy to the two slots adapted to energise the two slots either in phase or in phase opposition according to whether the front face of the casing is installed in a horizontal or vertical plane.
- 15. A method of installing a radiocommunication base station including, for communicating by radio with mobile stations, at least one antenna system including a casing for fixing said antenna system to a support, said antenna system including at least one radiating slot formed in a conductive plane parallel to a front face of the casing, the disposition of the slot defining a first direction substantially perpendicular to the front face of the casing and a second direction substantially parallel to said front face and perpendicular to the orientation of the slot, said first and second directions being such that the slot emits in the first direction an electric field having a polarisation oriented in the second direction and emits, substantially in the second direction, an electric field having a polarisation oriented substantially in the first direction, in which method at least one first antenna system is fixed to a support so that, for said first antenna system, said second direction is substantially vertical, and at least one second antenna system is fixed to a support so that, for said second antenna system, said first direction is substantially vertical.
Specification