Granular variable impedance tuning
US-10897239-B1 · Jan 19, 2021 · US
Group delay compensation filter
US10992285B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10992285-B2 |
| Application number | US-201916655427-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 17, 2019 |
| Priority date | Nov 7, 2018 |
| Publication date | Apr 27, 2021 |
| Grant date | Apr 27, 2021 |
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Abstract
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A group delay compensation filter includes: a waveguide that has a first slot and that is configured to transmit a signal; and a first dielectric resonator that includes: a first dielectric, a first metal layer formed over a surface of the first dielectric, and a first opening provided in the first metal layer, wherein the first dielectric resonator is in contact with the waveguide with the first opening coupled to the first slot, and wherein the first dielectric resonator is configured to compensate group delay in a first frequency band of the signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A group delay compensation filter comprising: a waveguide that has a first slot and that is configured to transmit a signal; and a first dielectric resonator that includes: a first dielectric, a first metal layer formed over a surface of the first dielectric, and a first opening provided in the first metal layer, wherein the first dielectric resonator is in contact with the waveguide with the first opening coupled to the first slot, and wherein the first dielectric resonator is configured to compensate group delay in a first frequency band of the signal. 2. The group delay compensation filter according to claim 1 , wherein the first dielectric resonator has a rejection band in the first frequency band. 3. The group delay compensation filter according to claim 1 , wherein the waveguide further includes a second slot, wherein the group delay compensation filter further includes a second dielectric resonator that includes: a second dielectric, a second metal layer formed over a surface of the second dielectric, and a second opening provided in the second metal layer, wherein the second dielectric resonator is in contact with the waveguide with the second opening coupled to the second slot, and wherein the second dielectric resonator is configured to compensate group delay in a second frequency band of the signal. 4. The group delay compensation filter according to claim 3 , wherein the first slot and the second slot are spaced from each other in a waveguide axis direction of the waveguide. 5. The group delay compensation filter according to claim 3 , wherein the first slot and the second slot face each other with a waveguide axis of the waveguide interposed between the first slot and the second slot. 6. The group delay compensation filter according to claim 1 , wherein the first dielectric resonator further has a second opening provided at a position which faces the first opening of the first metal layer, wherein the group delay compensation filter further includes a second dielectric resonator that includes: a second dielectric, a second metal layer formed over a surface of the second dielectric, and a third opening provided in the second metal layer, wherein the second dielectric resonator is in contact with the first dielectric resonator with the third opening coupled to the second opening, and wherein the second dielectric resonator is configured to compensate group delay in a second frequency band of the signal. 7. The group delay compensation filter according to claim 3 , wherein the second dielectric resonator has a rejection band in the second frequency band. 8. The group delay compensation filter according to claim 1 , wherein the group delay is generated at an end portion of a pass band of a band-pass filter.
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- What does patent US10992285B2 cover?
- A group delay compensation filter includes: a waveguide that has a first slot and that is configured to transmit a signal; and a first dielectric resonator that includes: a first dielectric, a first metal layer formed over a surface of the first dielectric, and a first opening provided in the first metal layer, wherein the first dielectric resonator is in contact with the waveguide with the fir…
- Who is the assignee on this patent?
- Fujitsu Ltd
- What technology area does this patent fall under?
- Primary CPC classification H03H11/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 27 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).