# US 12,603,444 B2 · Antenna module and communication device including the same

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- Number: US 12,603,444 B2
- Document ID: US12603444B2
- Status: Granted
- Kind: B2
- Application number: 18/793,992
- Filed: 2024-08-05
- Published: 2025-01-02
- Granted: 2026-04-14
- Earliest claimed: 2022-02-16
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Natsumi Minamitani
- Web page: https://patentgrep.com/patent/US12603444B2

## CPC

- H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)}
- H01Q 1/2283: {mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package}
- H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)}
- H01Q 5/307: Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q 9/0414: {in a stacked or folded configuration}
- H01Q 21/065: {Patch antenna array}
- H01Q 21/08: the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

An antenna module includes first and second radiating elements, and a substrate including a first main surface facing away from a second main surface. The first radiating element is closer to the first main surface than to the second main surface. The second radiating element is in a first antenna disposition member. A feed circuit supplies high-frequency signals to the first and second radiating elements. The first antenna disposition member has a first disposition surface on which the substrate is disposed and a first intersecting surface intersecting the first disposition surface. The second main surface is joined to the first disposition surface, and a feed wiring line electrically connecting the first radiating element or the second radiating element to the feed circuit includes a wiring line spanning the substrate and the first antenna disposition member in a first joint portion between the second main surface and the first disposition surface.

## Claims

### Claim 1

An antenna module comprising:
a first radiating element;
a second radiating element;
a substrate including a first main surface and a second main surface facing away from the first main surface, the first radiating element being disposed closer to the first main surface than to the second main surface;
a first antenna disposition member in which the second radiating element is disposed; and
a feed circuit that supplies a high-frequency signal to the first radiating element and the second radiating element,
wherein the first antenna disposition member includes a first disposition surface on which the substrate is disposed and a first intersecting surface that intersects the first disposition surface,
the second main surface is joined to the first disposition surface, and
a feed wiring line that electrically connects the first radiating element or the second radiating element to the feed circuit includes a wiring line that spans the substrate and the first antenna disposition member in a first joint portion between the second main surface and the first disposition surface.

### Claim 2 (depends on 1)

The antenna module according to claim 1,
wherein the first antenna disposition member is disposed such that the first intersecting surface faces a side surface of the substrate.

### Claim 3 (depends on 2)

The antenna module according to claim 2,
wherein the second radiating element is formed of an electrode having a flat-plate shape, and
the second radiating element is disposed at a position at which at least a portion of the second radiating element overlaps the first intersecting surface in plan view in a direction normal to the second radiating element.

### Claim 4 (depends on 3)

The antenna module according to claim 3,
wherein a gap is present between the first intersecting surface and the side surface of the substrate that faces the first intersecting surface.

### Claim 5 (depends on 1)

The antenna module according to claim 1, further comprising:
a ground electrode disposed to face the second radiating element,
wherein the ground electrode includes a first electrode disposed in the substrate and a second electrode disposed in the first antenna disposition member, and the first electrode is electrically connected to the second electrode.

### Claim 6 (depends on 5)

The antenna module according to claim 5, further comprising:
a connection member that electrically connects the first electrode to the second electrode,
wherein the first electrode and the second electrode are connected to the connection member at a position at which a distance between the second radiating element and the first electrode differs from a distance between the second radiating element and the second electrode.

### Claim 7 (depends on 5)

The antenna module according to claim 5,
wherein the first electrode has a mesh shape and includes a plurality of vias disposed in a direction normal to the substrate and a conductive member that interconnects adjacent ones of the plurality of vias, and
the second electrode has a flat-plate shape.

### Claim 8 (depends on 7)

The antenna module according to claim 7,
wherein a center of the second radiating element is located closer to the second electrode than the first disposition surface in plan view in the direction normal to the second radiating element.

### Claim 9 (depends on 5)

The antenna module according to claim 5,
wherein a center of the second radiating element is located closer to the first electrode than the first disposition surface in plan view in the direction normal to the second radiating element.

### Claim 10 (depends on 1)

The antenna module according to claim 1, further comprising:
an anisotropic conductive member that connects the second main surface to the first disposition surface.

### Claim 11 (depends on 1)

The antenna module according to claim 1, further comprising:
an underfill member that fills a gap between the second main surface and the first disposition surface.

### Claim 12 (depends on 1)

The antenna module according to claim 1, further comprising:
a dielectric disposed on a surface of the first antenna disposition member that corresponds to a radiation direction of the second radiating element, the dielectric having a dielectric constant that differs from a dielectric constant of the first antenna disposition member.

### Claim 13 (depends on 12)

The antenna module according to claim 12,
wherein the dielectric covers a surface of the first antenna disposition member that faces a side surface of the second radiating element.

### Claim 14 (depends on 1)

The antenna module according to claim 1, further comprising:
a feed wiring line that includes a coaxial line and connects the first joint portion to the second radiating element.

### Claim 15 (depends on 1)

The antenna module according to claim 1,
wherein the feed wiring line that connects the first joint portion to the second radiating element further includes a first line and a second line connected diagonally to the first line.

### Claim 16 (depends on 1)

The antenna module according to claim 1, further comprising:
a second antenna disposition member in which a third radiating element is disposed,
wherein the second antenna disposition member has a second disposition surface on which the substrate is disposed and a second intersecting surface that intersects the second disposition surface,
the second disposition surface is joined to the second main surface, and
a feed wiring line that electrically connects the first radiating element or the third radiating element to the feed circuit includes a wiring line that spans the substrate and the second antenna disposition member in a second joint portion between the second main surface and the second disposition surface.

### Claim 17 (depends on 1)

The antenna module according to claim 1,
wherein the feed circuit is disposed on the substrate.

### Claim 18 (depends on 1)

The antenna module according to claim 1,
wherein the feed circuit is disposed on the first antenna disposition member.

### Claim 19 (depends on 1)

A communication device comprising:
The antenna module according to claim 1.

### Claim 20 (depends on 1)

The antenna module according to claim 1, wherein the feed circuit includes a power management circuit.
