EP0546601A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Planar antenna
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1992-11-24
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Granted: —
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Expires: 2012-11-24
Abstract
Abstract A planar antenna (10) in multilayered arrangement of a grounding conductor plate (11), a power supplying circuit plate (12) and a radiating circuit plate (13) as separated from one another, radiating elements of which the radiating circuit plate (13) being a plurality of apertures (13a,b) electromagnetically coupled to power supply probes (12a,b) of the power supplying circuit plate (12), is provided on the radiating circuit plate (13) with a polarizer (14) capable of converting linear polarized waves into circular polarized waves, whereby the antenna is enabled to ensure a high efficiency and wide-band cross polarization characteristics.
Inventors
- 👤 Katsuya Tsukamoto
- 👤 Takeshi Saito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:50
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q15/00; H01Q15/24; H01Q15/242; H01Q15/244; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/064
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
95 words
A planar antenna in a multilayered structure of a grounding conductor plate, a power supplying circuit plate and a radiating circuit plate which are mutually separated with a dielectric layer interposed between them, in which said radiating circuit plate is provided with apertures acting as radiating elements for a generation of linear polarized wave as electromagnetically coupled to power supply probes in said power supplying circuit plate in physically non-contact relationship, characterized in that a polarizer for converting said linear polarized wave into circular polarized wave is provided in front of said radiating circuit plate.
Claim 2
Dependent Claim
95 words
A planar antenna in a multilayered structure of a grounding conductor plate, a power supplying circuit plate and a radiating circuit plate which are mutually separated with a dielectric layer interposed between them, in which said radiating circuit plate is provided with apertures acting as radiating elements for a generation of linear polarized wave as electromagnetically coupled to power supply probes in said power supplying circuit plate in physically non-contact relationship, characterized in that a polarizer for converting said linear polarized wave into circular polarized wave is provided in front of said radiating circuit plate.
Claim 3
Dependent Claim
71 words
A planar antenna according to claim 1, wherein said apertures of said radiating circuit plate are of an arrangement for rendering an electric wave yielded in parallel plate mode, by said electromagnetic coupling between said apertures of said radiating circuit plate and said power supply probes of said power supplying circuit plate to be of a phase substantially of an integral multiple of 1 wavelength in intervals between the respective apertures.
Claim 4
Dependent Claim
29 words
A planar antenna according to claim 1, wherein said radiating circuit plate is formed with a metal plate, and said apertures are made in said metal plate in pairs.
Claim 5
Dependent Claim
31 words
A planar antenna according to claim 1, wherein said polarizer comprises a stack of printed-circuit boards each having a conductor circuit pattern, and of insulating sheets interposed respectively between said boards.
Claim 6
Dependent Claim
19 words
A planar antenna according to claim 5, wherein said polarizer comprises an insulating sheet having a conductive circuit pattern.
Claim 7
Dependent Claim
20 words
A planar antenna according to claim 4, wherein said circuit pattern of said polarizer is formed with meander conductor lines.
Claim 8
Dependent Claim
20 words
A planar antenna according to claim 5, wherein said circuit pattern of said polarizer is formed with meander conductor lines.
Claim 9
Dependent Claim
20 words
A planar antenna according to claim 4, wherein said circuit pattern of said polarizer is formed with lattice conductor lines.
Claim 10
Dependent Claim
20 words
A planar antenna according to claim 5, wherein said circuit pattern of said polarizer is formed with lattice conductor lines.
References Cited (Backward Citations)
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