Planar antenna utilizing cascaded right-handed and left-handed transmission lines
First Claim
1. A planar antenna apparatus comprising:
- a dielectric substrate having a first surface and a second surface opposite to the first surface;
a ground plane on the second surface of the dielectric substrate;
a feeding line disposed on the first surface of the dielectric substrate;
an antenna section based on a portion of the dielectric substrate, comprising;
a first conductive pattern disposed on the first surface of the portion of the dielectric substrate, the feeding line being coupled to the first conductive pattern;
a second conductive pattern disposed on the second surface of the portion of the dielectric substrate and connected to the ground plane, wherein first conductive pattern is coupled to the second conductive pattern so as to serve as a cascade of a right-handed transmission line and a left-handed transmission line;
wherein the first and second conductive patterns comprise;
a first lumped equivalent circuit of the right-handed transmission line; and
a second lumped equivalent circuit of the left-handed transmission line, cascaded with the first lumped equivalent circuit, wherein the right-handed and left-handed transmission lines have electrical lengths with opposite signs respectively.
1 Assignment
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Accused Products
Abstract
A planar antenna structure is provided. The planar antenna includes a dielectric substrate, a ground plane, a first conductive pattern and a second conductive pattern. The dielectric substrate has a first surface and a second surface. The ground plane is on the second surface of the dielectric substrate. The first conductive pattern is on the first surface of the dielectric substrate, coupled to a feeding line. The second conductive pattern is on the second surface of the dielectric substrate, coupled to the ground plane. The first and second conductive patterns are coupled to serve as cascaded right- and left-handed transmission lines. The first and second conductive patterns include: a first lumped equivalent circuit of the right-handed transmission line; and a second lumped equivalent circuit of the left-handed transmission line, cascaded with the first lumped equivalent circuit, wherein the right- and left-handed transmission lines have electrical lengths with opposite signs respectively.
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Citations
20 Claims
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1. A planar antenna apparatus comprising:
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a dielectric substrate having a first surface and a second surface opposite to the first surface; a ground plane on the second surface of the dielectric substrate; a feeding line disposed on the first surface of the dielectric substrate; an antenna section based on a portion of the dielectric substrate, comprising; a first conductive pattern disposed on the first surface of the portion of the dielectric substrate, the feeding line being coupled to the first conductive pattern; a second conductive pattern disposed on the second surface of the portion of the dielectric substrate and connected to the ground plane, wherein first conductive pattern is coupled to the second conductive pattern so as to serve as a cascade of a right-handed transmission line and a left-handed transmission line; wherein the first and second conductive patterns comprise; a first lumped equivalent circuit of the right-handed transmission line; and a second lumped equivalent circuit of the left-handed transmission line, cascaded with the first lumped equivalent circuit, wherein the right-handed and left-handed transmission lines have electrical lengths with opposite signs respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An planar antenna structure comprising:
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a dielectric substrate having a first surface and a second surface; a ground plane on the second surface of the dielectric substrate; a first conductive pattern on the first surface of the dielectric substrate, coupled to the feeding line; a second conductive pattern on the second surface of the dielectric substrate, coupled to the ground plane, wherein the first conductive pattern is coupled to the second conductive pattern so as to serve as a cascade of a right-handed transmission line and a left-handed transmission line, wherein the first and second conductive patterns comprise; a first lumped equivalent circuit of the right-handed transmission line; and a second lumped equivalent circuit of the left-handed transmission line, cascaded with the first lumped equivalent circuit, wherein the right-handed and left-handed transmission lines have electrical lengths with opposite signs respectively. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification
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- Resources
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Current AssigneeArcadyan Technology Corporation (Compal Electronics Incorporated)
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Original AssigneeArcadyan Technology Corporation (Compal Electronics Incorporated)
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InventorsChung, Shyh-Jong
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current343/700.MS
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CPC Class CodesH01Q 13/10 Resonant slot antennasH01Q 13/206 Microstrip transmission lin...
