# US 9,437,913 B2 · Dielectric waveguide comprised of a dielectric block and a dielectric plate sandwiching an input/output feeder line

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- Number: US 9,437,913 B2
- Document ID: US9437913B2
- Status: Granted
- Kind: B2
- Application number: 14/229,397
- Filed: 2014-03-28
- Published: 2014-10-02
- Granted: 2016-09-06
- Earliest claimed: 2013-03-29
- Assignees: Toko, Inc.
- Applicants: Toko, Inc.
- Inventors: Yukikazu Yatabe
- Web page: https://patentgrep.com/patent/US9437913B2

## CPC

- H01P 5/1022: {Transitions to dielectric waveguide}
- H01P 1/2002: {Dielectric waveguide filters (H01P1/212, H01P1/213, H01P1/215, H01P1/219 take precedence)}
- H01P 3/16: Dielectric waveguides, i.e. without a longitudinal conductor
- H01P 5/087: {Transitions to a dielectric waveguide}
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)

## Abstract

Provided is an input/output structure for a dielectric waveguide, comprising a rectangular-parallelepiped-shaped dielectric block, a plate-shaped dielectric plate, and a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate.

## Claims

### Claim 1

A dielectric waveguide device employing an input/output structure for a dielectric waveguide comprising:
a rectangular-parallelepiped-shaped dielectric block;
a plate-shaped dielectric plate having a through hole extending through approximately a center thereof; and
a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate,
wherein the dielectric block and the dielectric plate are coupled together to form the dielectric waveguide; and
wherein the dielectric waveguide block is covered by an electrical conductive layer.

### Claim 2

An input/output structure of a dielectric waveguide, the dielectric waveguide comprising:
a rectangular-parallelepiped-shaped dielectric block,
a plate-shaped dielectric plate having a through-hole extending through approximately a center thereof, and
a feeder line comprising a line-shaped electrically conductive foil sandwiched between the dielectric block and the dielectric plate;
wherein the dielectric block and the dielectric plate are coupled together to form the dielectric waveguide; and
wherein the dielectric waveguide is covered by an electrical conductive layer.

### Claim 3 (depends on 2)

The dielectric waveguide input/output structure as defined in claim 2, wherein the feeder line has an approximately quarter wavelength open stub provided on each of opposite sides at a position spaced away from a distal end thereof by an approximately quarter wavelength.

### Claim 4 (depends on 3)

The dielectric waveguide input/output structure as defined in claim 3, wherein the distal end of the feeder line has a large width.