Wideband arrayable planar radiator
First Claim
1. An antenna radiating device comprising:
- a dielectric substrate having a first side and a second side;
a first conductive patch position on the first side of the dielectric substrate;
a second conductive patch positioned on the second side of the dielectric substrate, wherein the first and second conductive patches are positioned relative to each other such that the shaped of the first and second conductive patches are substantially circular and form a dual flared slotline antenna element and wherein the first and second conductive patches are substantially tangential to each other as viewed form a direction perpendicular to the plane of the substrate; and
feeder means for providing a signal to both the first and second conductive patches, connected to the conductive patches at a region where the slotline is the narrowest, wherein the signal generates an electric field across the slotline which drives the conductive patches to radiate an electromagnetic signal into free space.
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Accused Products
Abstract
This invention discloses an antenna element (12) or an array of antenna elements (52) for use in multifunctional systems which exhibits wide bandwidth, small size, polarization diversity and conformality. In one preferred embodiment, an array of circular conductive patches (56,58) are formed on a dielectric substrate (54) in which adjacent patches are formed on opposite sides of the substrate (54). Each of the opposite conducting patches (56,58) are configured to form a dual flared slotline such that an electric field created between the two conductive patches (56,58) will exhibit a wide range of impedance matching to free space. By exciting the conductive patches (56,58), radiating electromagnetic waves having a polarization with respect to the orientation of the slotlines is produced. By this, a single array of antenna elements (52) can be used in a multifunctional system.
29 Citations
16 Claims
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1. An antenna radiating device comprising:
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a dielectric substrate having a first side and a second side; a first conductive patch position on the first side of the dielectric substrate; a second conductive patch positioned on the second side of the dielectric substrate, wherein the first and second conductive patches are positioned relative to each other such that the shaped of the first and second conductive patches are substantially circular and form a dual flared slotline antenna element and wherein the first and second conductive patches are substantially tangential to each other as viewed form a direction perpendicular to the plane of the substrate; and feeder means for providing a signal to both the first and second conductive patches, connected to the conductive patches at a region where the slotline is the narrowest, wherein the signal generates an electric field across the slotline which drives the conductive patches to radiate an electromagnetic signal into free space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of generating an electromagnetic signal comprising the steps of:
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disposing a first conductive patch on a first side of a dielectric substrate; shaping the first and second conductive patch into substantially circular shapes; disposing the second conductive patch on a second side of the dielectric substrate, wherein the first and second conductive patches are positioned relative to each other such that the shaped of the first and second conductive patches form a dual flared slotline antenna element and wherein the first and second conductive patches are substantially tangential to each other as viewed from a direction perpendicular to the plane of the substrate; and electrically connecting a signal feeding device to both the first and second conductive patches at a region where the slotline is the narrowest in order to produce the electromagnetic signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification