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US 2015/0091773 A1Published application
Dual band directive/reflective antenna
AssigneeNovAtel Inc.
InventorSon Huy Huynh
Life of this patent
Estimating the term…
Abstract
A dual band antenna having a directive element and a reflective element is disclosed. A first and second antennas are arranged substantially parallel to each other and spaced between approximately 0.5-0.8 times the wavelength of the first antenna. The dual band antenna provides high gain at the zenith and at the horizon and enable v variation in the antenna beam shape as well as a reduction in cross polarization.
Claims10
A dual band antenna, dual band antenna comprising:
- a first antenna comprising of a first ground plane having a diameter that is approximately 0.5 λ1, wherein λ1 represents a wavelength associated with a first frequency;
- a second antenna comprising of a second ground plane having a diameter of approximately 0.5 λ2, wherein λ2 represents a wavelength associated with a second frequency;
- wherein the first and second ground planes are arranged substantially parallel to each other at a distance H, wherein H is between approximately 0.5 λ1 and approximately 0.8 λ1;
- and
- wherein the first ground plane acts as a director for the second antenna and wherein the second ground plane operates as a reflector for the first antenna.
2 more elements
Dependencies are inferred from the claim text.