# US 11,909,089 B2 · Substrate integrated waveguide (SIW) including fences with wall strips and ridge strips, where the ridge strips extend further into the SIW than the wall strips

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,909,089 B2
- Document ID: US11909089B2
- Status: Granted
- Kind: B2
- Application number: 17/947,347
- Filed: 2022-09-19
- Published: 2023-01-12
- Granted: 2024-02-20
- Earliest claimed: 2020-12-20
- Assignees: Vayyar Imaging Ltd.
- Applicants: Vayyar Imaging Ltd.
- Inventors: Naftali Chayat
- Web page: https://patentgrep.com/patent/US11909089B2

## CPC

- H01P 3/121: {integrated in a substrate}
- H01P 1/2088: {Integrated in a substrate}
- H01P 3/123: with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P3/14 takes precedence)
- H01P 5/103: Hollow-waveguide/coaxial-line transitions
- H01Q 21/005: {Slotted waveguides arrays}
- H05K 1/0237: {High frequency adaptations (H05K1/0216 takes precedence)}
- H05K 1/115: {Via connections; Lands around holes or via connections (H05K1/112 takes precedence)}
- H05K 2201/09618: Via fence, i.e. one-dimensional array of vias
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A printed circuit board is provided, comprising a horizontally extending dielectric substrate and a substrate integrated waveguide (SIW) having at least one ridge. The SIW comprises two horizontally disposed conductive ground planes spaced by a vertical distance, and two vertically disposed conductive fences spanning therebetween. The fences extend in a first horizontal direction, and are spaced from one another in a second horizontal direction, perpendicular to the first horizontal direction. At least one of the fences comprises a plurality of horizontally disposed conductive strips vertically spaced from one another and extending in the first horizontal direction. At least some of the conductive strips are ridge-strips constituting the ridge and extending in the second horizontal direction toward the other of the fences.

## Claims

### Claim 1

A printed circuit board comprising a horizontally extending dielectric substrate and a substrate integrated waveguide (SIW) having at least one ridge;
said SIW comprising first and second horizontally disposed conductive ground planes spaced by a vertical distance, and two vertically disposed conductive fences spanning therebetween, said fences extending in a first horizontal direction, and being spaced from one another in a second horizontal direction, perpendicular to the first horizontal direction;
at least one of said fences comprising a plurality of horizontally disposed conductive strips vertically spaced from one another and extending in the first horizontal direction, at least some of said conductive strips being wall-strips, and at least some of said conductive strips being ridge-strips constituting at least a portion of said at least one ridge and extending from their respective fences in the second horizontal direction toward the other of said fences to an extent greater than said wall-strips.

### Claim 2 (depends on 1)

A printed circuit board according to claim 1, comprising two or more of said SIWs, wherein at least one of the fences constitutes a portion of two adjacent SIWs.

### Claim 3 (depends on 1)

The printed circuit board according to claim 1, wherein said ridge-strips are vertically disposed between wall-strips of the same fence.

### Claim 4 (depends on 1)

The printed circuit board according to claim 1, wherein each of said fences comprises a plurality of horizontally disposed conductive strips vertically spaced from one another and extending in the first horizontal direction, at least some of said conductive strips of each fence being ridge-strips constituting one of said at least one ridges and extending in the second horizontal direction toward the other of said fences.

### Claim 5 (depends on 4)

The printed circuit board according to claim 4, wherein each ridge-strip is disposed opposite a corresponding ridge-strip of the other of said fences.

### Claim 6 (depends on 1)

The printed circuit board according to claim 1, wherein the vertical distance between said first and the second ground planes is greater than the distance in the second horizontal direction between said fences.

### Claim 7 (depends on 1)

The printed circuit board according to claim 1, wherein each of said fences comprises a plurality of vertically disposed conductive elements spaced from one another in the first horizontal direction.

### Claim 8 (depends on 1)

The printed circuit board according to claim 1, said dielectric substrate comprising a plurality of sheets of dielectric material, said strips being disposed between said sheets.

### Claim 9 (depends on 1)

A printed circuit board according to claim 1, said at least one ridge further comprising a plurality of buried vias adjacent at least one of said fences on a side thereof facing the other of said fences.

### Claim 10 (depends on 9)

The printed circuit board according to claim 9, the ridge-strip contacting at least one of said fences and at least some of said buried vias adjacent thereto.