US 12,586,915 B2Granted

Antenna assembly with metallized cavity waveguide

AssigneeNXP B.V.

InventorsManuel Alfredo Monedero Miranda, Vishwadeep Nikhil Sharma Suryanarayana

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Abstract

The present disclosure relates an antenna assembly that includes an antenna structure and a substrate. The antenna structure may be formed from a single contiguous piece of metal. The antenna structure may include at least one slot antenna formed in the single contiguous piece of metal. The substrate may include at least one dielectric layer, and a waveguide comprising a metallized cavity that extends through the at least one dielectric layer. The antenna structure may be attached to the substrate, may be disposed at an upper surface of the substrate, and may cover the metallized cavity of the waveguide. The substrate may be a printed circuit board (PCB) substrate, an in-mold electronics (IME) substrate, a molded interconnect device (MID) substrate, or another suitable substrate.

Claims18

Dependent claims

An antenna assembly comprising:

an antenna structure formed from a single contiguous piece of metal, the antenna structure comprising:
at least one slot antenna formed in the single contiguous piece of metal;
and
a substrate comprising:
at least one dielectric layer;
and
a waveguide comprising a metallized cavity that extends through the at least one dielectric layer,
wherein the antenna structure is attached to the substrate, is disposed at an upper surface of the substrate, and covers the metallized cavity of the waveguide;
wherein the at least one slot antenna includes a first slot antenna and a second slot antenna, and the antenna structure further comprises:
a first tab that extends from the first slot antenna into the metallized cavity of the waveguide;
and
a second tab that extends from the second slot antenna into the metallized cavity of the waveguide, wherein the first tab and the second tab are integrally formed with the single contiguous piece of metal of the antenna structure, and the first tab and the second tab provide mechanical attachment between the antenna structure and the substrate.

9 more elements

A system comprising:

transceiver circuitry configured to send and receive radio frequency signals;
and
an antenna assembly coupled to the transceiver circuitry, the antenna assembly comprising:
an antenna structure formed from a single contiguous piece of metal, the antenna structure comprising:
at least one slot antenna formed in the single contiguous piece of metal;
and a printed circuit board substrate comprising:
at least one dielectric layer;
and
a waveguide comprising a metallized cavity that extends through the at least one dielectric layer,
wherein the antenna structure is attached to the printed circuit board substrate and is disposed at an upper surface of the printed circuit board substrate, and the antenna structure covers the metallized cavity of the waveguide;
wherein the antenna structure includes a plurality of legs protruding from a first side of the antenna structure and a second side of the antenna structure, the plurality of legs are integrally formed with the single contiguous piece of metal of the antenna structure, and the plurality of legs are attached to the upper surface of the printed circuit board substrate using one or more of solder, solder paste, adhesive, or press fit structures.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/809,131Filed 19 Aug 2024
Published: US 2026/0051660 A119 Feb 2026
Granted: 24 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01Q 13/18
Resonant slot antennas: the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
H01Q 21/0043
Linear waveguide fed arrays: slotted waveguides
H01Q 21/064
Two dimensional planar arrays: using horn or slot aerials
H01P 1/022
Bends; Corners; Twists: in waveguides of polygonal cross-section