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US 9,437,917 B2Granted
Antenna designs
AssigneeAruba Networks, Inc.
InventorsAhmed Khidre, James W. Jervis, Subburajan Ponnuswamy
Life of this patent
Estimating the term…
Abstract
According to one embodiment of the invention, a network device comprises a plurality of antennas comprising a first antenna, wherein the first antenna comprises: a first set of one or more elements that form an Alford loop and that is configured for electrical excitation via a current transmitted over a conductive medium from a signal source and a second set of one or more elements that is configured for electromagnetic induction without contact with the conductive medium from the signal source.
Claims15
A device comprising:
- a semi-loop antenna consisting essentially of:
- a first section connected to a ground plane via a connection portion and extending away from the ground plane,
- a second section connected to an end of the first section, the second section being planar and facing the ground plane, and
- a third section connected to an end of the second section and extending toward the ground plane without coming into direct contact with the ground plane,
- wherein the third section is connected to a signal source via a connector, and
- an area of the second section and a distance of the second section from the ground plane are such that an inductance corresponding to the semi-loop antenna is canceled by a capacitance corresponding to the semi-loop antenna.
3 more elements
A device comprising:
- a monopole antenna consisting essentially of:
- a first section connected to a ground plane via a connection portion and extending away from the ground plane,
- a second section connected to an end of the first section, the second section being planar and facing the ground plane, and
- a third section connected to an end of the second section and extending away from the ground plane,
- wherein the third section is connected to a signal source via a connector without the third section coming into direct contact with the ground plane, and
- a height of the first section, a length of the second section, and dimensions of the third section are such that a capacitance corresponding to the monopole antenna is canceled by an inductance corresponding to the monopole antenna.
3 more elements
Dependencies are inferred from the claim text.