Multiband monopole antenna apparatus with ground plane aperture
First Claim
1. A wireless device for transmitting a radiation signal, comprising:
- a circuit board including a metallic ground plane and at least one substrate layer;
a monopole antenna coupled to the circuit board and transmitting radio frequency (RF) signals, wherein the monopole antenna includes one or more loading structures to change a resonance of the monopole antenna; and
one or more apertures in the metallic ground plane associated with the monopole antenna, wherein each of the one or more apertures has a corresponding shape and pattern, the corresponding shape and pattern being circular, elliptical, or regular polygonal, wherein at least one selectable radio frequency switch is positioned over each of the one or more apertures, and wherein the one or more apertures associated with the monopole antenna are selected based on their corresponding shape and pattern to beam steer specific RF signals transmitted from the monopole antenna via selection of associated RF switches.
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0 Petitions
Accused Products
Abstract
A monopole antenna coupled to a metallic ground plane includes apertures used to steer a radio frequency (RF) beam of the monopole. The apertures may have a length, width, and distance from the monopole based on the wavelength of the RF signal used to drive the monopole antenna. The aperture may be coupled to one or more selective devices, such as PIN diodes, which may short portions of a metallic ground plane near the aperture. The shorted portions of the metallic ground plane provide for steering of the monopole radiation pattern. A circuit board metallic ground plane may include multiple apertures to direct different RF signal frequencies from a single monopole antenna. Multiple monopole antennas may be implemented over a metallic ground plane within a wireless device, each monopole antenna with corresponding apertures.
304 Citations
12 Claims
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1. A wireless device for transmitting a radiation signal, comprising:
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a circuit board including a metallic ground plane and at least one substrate layer; a monopole antenna coupled to the circuit board and transmitting radio frequency (RF) signals, wherein the monopole antenna includes one or more loading structures to change a resonance of the monopole antenna; and one or more apertures in the metallic ground plane associated with the monopole antenna, wherein each of the one or more apertures has a corresponding shape and pattern, the corresponding shape and pattern being circular, elliptical, or regular polygonal, wherein at least one selectable radio frequency switch is positioned over each of the one or more apertures, and wherein the one or more apertures associated with the monopole antenna are selected based on their corresponding shape and pattern to beam steer specific RF signals transmitted from the monopole antenna via selection of associated RF switches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification