Wideband antenna design for wide-scan low-profile phased arrays
US-9755306-B1 · Sep 5, 2017 · US
Antenna device
US11075462B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11075462-B2 |
| Application number | US-201816619968-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 15, 2018 |
| Priority date | Jun 14, 2017 |
| Publication date | Jul 27, 2021 |
| Grant date | Jul 27, 2021 |
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Abstract
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To obtain a more favorable radiation pattern even in a case of arraying a plurality of antenna elements.An antenna device includes a dielectric substrate, a plurality of antenna elements that disposed along a first direction and respectively transmits or receives a first wireless signal and a second wireless signal having different polarization directions from one another, and a ground plate provided with a long slot to extend in a second direction in a region corresponding to a region between first and second antenna elements next to each other, and a length L in the second direction of the slop satisfies a conditional expression below where a wavelength of the wireless signal is λ0, a relative dielectric constant of the dielectric substrate is εr1, and a relative dielectric constant of a dielectric located on an opposite side of the dielectric substrate with respect to the ground plate is εr2.[Math.1]L>λg2,λg=λ0(ɛr1+ɛr2)/2
First claim
Opening claim text (preview).
The invention claimed is: 1. An antenna device comprising: a substantially planar dielectric substrate; a plurality of antenna elements disposed on one surface of the dielectric substrate along a first direction horizontal to a plane of the dielectric substrate, and configured to respectively transmit or receive a first wireless signal and a second wireless signal having different polarization directions from one another; and a ground plate provided on substantially entire the other surface of the dielectric substrate, and provided with a long slot to extend in a second direction orthogonal to the first direction in a region corresponding to a region between a first antenna element and a second antenna element next to each other, wherein a length L in the second direction of the slot satisfies a conditional expression below: [ Math . 1 ] L > λ g 2 , λ g = λ 0 ( ɛ r 1 + ɛ r 2 ) / 2 where a wavelength of the wireless signal transmitted or received by each of the plurality of antenna elements is λ 0 , a relative dielectric constant of the dielectric substrate is ε r1 , and a relative dielectric constant of a dielectric located on an opposite side of the dielectric substrate with respect to the ground plate is ε r2 . 2. The antenna device according to claim 1 , wherein a distance d between respective centers of the first antenna element and the second antenna element satisfies a conditional expression below. [ Math . 2 ] λ 0 2 ≤ d < λ 0 . 3. The antenna device according to claim 1 , wherein a distance p along the first direction between a center of the first antenna element and the slot satisfies a conditional expression below. [ Math . 3 ] λ 0 4 ɛ r 1 < p < d - λ 0 4 ɛ r 1
Assignees
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Classifications
with built-in antennas · CPC title
Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} · CPC title
between antennas of an array · CPC title
Earthing means; Earth screens; Counterpoises · CPC title
- H01Q13/10Primary
Resonant slot antennas · CPC title
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- What does patent US11075462B2 cover?
- To obtain a more favorable radiation pattern even in a case of arraying a plurality of antenna elements.An antenna device includes a dielectric substrate, a plurality of antenna elements that disposed along a first direction and respectively transmits or receives a first wireless signal and a second wireless signal having different polarization directions from one another, and a ground plate pr…
- Who is the assignee on this patent?
- Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification H01Q13/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).