# US 11,444,366 B2 · Conical resonator formed by winding a tape-shaped band in an overlapping manner into a truncated cone shape

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- Number: US 11,444,366 B2
- Document ID: US11444366B2
- Status: Granted
- Kind: B2
- Application number: 17/105,755
- Filed: 2020-11-27
- Published: 2021-06-03
- Granted: 2022-09-13
- Earliest claimed: 2019-11-28
- Assignees: Electronicsand Telecommunications Research Institute
- Applicants: Electronics and Telecommunications Research Institute
- Inventors: Jung Ick Moon; Je Hoon Yun; In Kui Cho; Ho Jin Lee; Sang-Won Kim; Seong-Min Kim; Jang Yeol Kim; Jaewoo Lee; Hyunjoon Lee; Dong Won Jang
- Web page: https://patentgrep.com/patent/US11444366B2

## CPC

- H01P 7/005: {Helical resonators; Spiral resonators}
- H01P 1/2084: {with dielectric resonators}
- H01P 11/008: {Manufacturing resonators}
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)

## Abstract

Disclosed is a resonator for expanding a transfer distance. A conical resonator includes a metal layer configured to operate according to a resonant frequency, and a dielectric layer coupled to the top or bottom of the metal layer to space the metal layer apart from another metal layer without overlap, wherein the metal layer and the dielectric layer have a Swiss-roll structure, and include an input face to which power is supplied on the bottom and an open face on the top.

## Claims

### Claim 1

A conical resonator comprising:
a metal layer configured to operate according to a resonant frequency; and
a dielectric layer coupled to a top or bottom of the metal layer,
wherein the conical resonator is formed in a shape of truncated cone by winding in a partly overlapping manner a tape-shaped band in which the metal layer and the dielectric layer are combined, the metal layer being spaced apart by the dielectric layer in a shape wound in the partly overlapping manner, and
wherein the conical resonator has an input face on a bottom thereof to which power is supplied and an open face on a top thereof.

### Claim 2 (depends on 1)

The conical resonator of claim 1, wherein the dielectric layer has a same area as the metal layer to which the dielectric layer is coupled.

### Claim 3 (depends on 1)

The conical resonator of claim 1, wherein overlapped portions between the dielectric layer and the metal layer in the shape wound in the partly overlapping manner increase when pressure is applied upward and downward on the conical resonator, such that a height of the conical resonator decreases.

### Claim 4 (depends on 1)

The conical resonator of claim 1, wherein overlapped portions between the dielectric layer and the metal layer in the shape wound in the partly overlapping manner decrease when force to pull upward or downward is applied on the conical resonator, such that a height of the conical resonator increases.

### Claim 5 (depends on 1)

The conical resonator of claim 1, further comprising:
a spiral resonator to be coupled to the input face to lower the resonant frequency of the metal layer.

### Claim 6 (depends on 1)

The conical resonator of claim 1, further comprising:
a spiral resonator to be coupled to the open face to lower the resonant frequency of the metal layer.

### Claim 7 (depends on 1)

The conical resonator of claim 1, further comprising:
a first low-loss dielectric plate coupled to the open face;
a second low-loss dielectric plate coupled to the input face; and
a low-loss dielectric pillar configured to connect a center of the first low-loss dielectric plate and a center of the second low-loss dielectric plate.

### Claim 8

A dipole resonator comprising:
a first conical resonator comprising a first metal layer and a first dielectric layer and formed in a shape of truncated cone by winding in a partly overlapping manner a tape-shaped band in which the first metal layer and the first dielectric layer are combined, the first conical resonator having an input face on a bottom thereof to which power is supplied, and an open face on a top thereof;
a second conical resonator comprising a second metal layer and a second dielectric layer and formed in a shape of truncated cone by winding in a partly overlapping manner a tape-shaped band in which the second metal layer and the second dielectric layer are combined, the second conical resonator having an input face on a top thereof to which power is supplied and an open face on a bottom thereof; and
a power supply connected to the input face of the first conical resonator and the input face of the second conical resonator to supply power to the input face of the first conical resonator and the input face of the second conical resonator.

### Claim 9 (depends on 8)

The dipole resonator of claim 8, wherein the second conical resonator and the first conical resonator are formed in a symmetric structure about the power supply and have a same impedance.

### Claim 10 (depends on 8)

The dipole resonator of claim 8, wherein the second conical resonator is coupled to the first conical resonator by inserting the input face of the second conical resonator into the first conical resonator, the input face of the second conical resonator having a smaller diameter than the input face of the first conical resonator.

### Claim 11 (depends on 8)

The dipole resonator of claim 8, wherein the first conical resonator is coupled to the second conical resonator by inserting the input face of the first conical resonator into the second conical resonator, the input face of the first conical resonator having a smaller diameter than the input face of the second conical resonator.