Antenna module
AssigneeAlcatel
InventorsArthur Roberts, Coskun Nalbant, Noel McDonald
Life of this patent
Estimating the term…
Abstract
An antenna module, in particular for a base station of a cellular mobile radio network, comprising a group of radiating elements capable of receiving and/or transmitting electromagnetic waves having at least two different, preferably linear orthogonal, polarizations, said antenna module further comprising at least one passive decoupling element. Said decoupling element extends with its longest dimension in a direction which is substantially perpendicular to a direction of propagation of said electromagnetic waves and/or substantially parallel to a ground plane and thus improves a degree of decoupling between said polarizations.
Claims13
An antenna module, comprising:
- at least one radiating element capable of receiving and/or transmitting electromagnetic waves having at least two different polarizations;
- and
- passive decoupling elements, each having an “L” shape when seen from a view point looking across the width of the ground plane, and oriented with a face having a largest surface area being substantially parallel to a ground plane, arranged symmetrically regarding each at least one radiating element.
An antenna module comprising:
- at least one radiating element capable of receiving and/or transmitting electromagnetic waves having at least two different polarizations;
- and
- at least one passive decoupling element having an “L” shape , and oriented with a face having a largest surface area being substantially parallel to a ground plane,
- wherein said decoupling element comprises at least a first section having a first length;
- and
- wherein said first length of said first section is smaller than 25 percent of a distance between adjacent groups of radiating elements.
Dependencies are inferred from the claim text.