Wideband dielectric antenna
First Claim
1. An antenna for radiating an electromagnetic field having both linear and circular polarization, said antenna comprising:
- a ground plane;
a dielectric layer disposed on said ground plane and having at least one exposed surface that radiates the electromagnetic field; and
a first feeding element disposed on said at least one exposed surface for electrically exciting said dielectric layer to provide the linear polarization at a first frequency having a first effective wavelength; and
a second feeding element disposed on said at least one exposed surface for electrically exciting said dielectric layer to provide the circular polarization at a second frequency having a second effective wavelength;
whereinsaid feeding elements are separated by a distance greater than ⅛
wavelength of any of the effective wavelengths.
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Accused Products
Abstract
An antenna for radiating an electromagnetic field having both linear and circular polarization includes a ground plane and a dielectric layer. The dielectric layer is disposed on the ground plane and has at least one exposed surface that radiates the electromagnetic field. A first feeding element is disposed on the exposed surface for electrically exciting the dielectric layer to provide the linear polarization at a first frequency having a first effective wavelength. A second feeding element is disposed on the exposed surface for electrically exciting the dielectric layer to provide the circular polarization at a second frequency having a second effective wavelength. The feeding elements are separated by a distance greater than ⅛ wavelength of the largest of the effective wavelengths.
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Citations
20 Claims
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1. An antenna for radiating an electromagnetic field having both linear and circular polarization, said antenna comprising:
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a ground plane; a dielectric layer disposed on said ground plane and having at least one exposed surface that radiates the electromagnetic field; and a first feeding element disposed on said at least one exposed surface for electrically exciting said dielectric layer to provide the linear polarization at a first frequency having a first effective wavelength; and a second feeding element disposed on said at least one exposed surface for electrically exciting said dielectric layer to provide the circular polarization at a second frequency having a second effective wavelength;
whereinsaid feeding elements are separated by a distance greater than ⅛
wavelength of any of the effective wavelengths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A window having an integrated antenna for radiating an electromagnetic field having both linear and circular polarization, said window comprising:
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a nonconductive pane; a ground plane spaced from said nonconductive pane; a dielectric layer sandwiched between said ground plane and said nonconductive pane and having at least one exposed surface that radiates the electromagnetic field; a first feeding element disposed on said exposed surface for electrically exciting said dielectric layer to provide the linear polarization at a first frequency having a first effective wavelength; and a second feeding element disposed on said exposed surface for electrically exciting said dielectric layer to provide the circular polarization at a second frequency having a second effective wavelength;
whereinsaid feeding elements are separated by a distance greater than ⅛
wavelength of any of the effective wavelengths. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification