Antenna module
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsChristof Landesberger, Peter Ramm, Nagarajan Palavesam, Josef Weber
Life of this patent
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Abstract
An antenna module includes a first substrate, a second substrate, the second substrate including at least one cavity at one of the first main surface. The first substrate includes at least an RF antenna element and/or an RF chip and/or an RF conductive trace, which are arranged on the first main surface of the substrate. The first substrate is connected, with its first main surface, to the first main surface of the second substrate so that the RF elements project into the at least one cavity.
Claims16
The antenna module, comprising the following features:
- a first substrate,
- a second substrate, said second substrate comprising at least one cavity at a first main surface,
- wherein the first substrate comprises at least an RF antenna element and an RF chip or an RF conductive trace, the RF antenna element and the RF chip or the RF conductive trace being arranged on or in a first main surface of the first substrate,
- wherein the RF antenna element and the RF chip or the RF antenna element and the RF conductive trace project out of the first main surface and into the at least one cavity, the first substrate being a high-resistance substrate, an insulating substrate or comprising a glass material, a ceramic material or a polymer material, the cavity comprising an electrically contacted cavity metallization having a pattern;
- wherein the antenna module further comprising a meta material being arranged on a bottom of the at least one cavity and coupled to the cavity or being arranged on the cavity metallization and coupled to the cavity metallization;
- wherein the meta material and the cavity metallization are—when seen in radiation direction of the RF antenna element—below the RF antenna element and associated with the RF antenna element;
- wherein the meta material interacts with the cavity metallization so as to modify the radiation pattern of the RF antenna element through electromagnetic coupling between the metamaterial and the cavity metallization.
Dependencies are inferred from the claim text.