Multi-band antenna device and tuning techniques
AssigneeGeotab Inc.
InventorMatthew Douglas Brown
Life of this patent
Estimating the term…
Abstract
Described herein are antenna configurations that, in some embodiments, may be advantageously tuned to achieve desired electromagnetic performance over multiple resonant frequencies by providing control, in the design process, over some or all of the desired resonant frequencies. Such antenna configurations, in some embodiments, may be configured to achieve a large frequency bandwidth in a static physical layout, without necessarily resorting to a reconfigurable feed path.
Claims21
1-20. (canceled)
An antenna device, comprising:
- a dielectric support;
- a first conductor disposed on the dielectric support, the first conductor comprising:
- a signal feed terminal;
- a first signal portion electrically connected to the signal feed terminal, the first signal portion being elongated in a first direction and comprising a first conductor termination in the first direction;
- and
- a second signal portion elongated in the first direction, the second signal portion terminating in the first direction at the first signal portion;
- and
- a second conductor disposed on the dielectric support and comprising:
- a reference feed terminal;
- a first reference portion electrically connected to the reference feed terminal, the first reference portion being elongated in the first direction spaced from the first signal portion in a second direction perpendicular to the first direction by a first gap distance, and comprising a second conductor termination in the first direction, the first conductor termination of the first signal portion being offset in the first direction from the second conductor termination of the first reference portion;
- and
- a second reference portion elongated in the first direction and spaced from the second signal portion in the second direction by a second gap distance that is greater than the first gap distance, the second reference portion terminating in the first direction at the first reference portion.
A system, comprising:
- a housing;
- an antenna device, comprising:
- a dielectric support;
- a first conductor disposed on the dielectric support, the first conductor comprising:
- a signal feed terminal;
- a first signal portion electrically connected to the signal feed terminal, the first signal portion being elongated in a first direction and comprising a first conductor termination in the first direction;
- and
- a second signal portion elongated in the first direction, the second signal portion terminating in the first direction at the first signal portion;
- and
- a second conductor disposed on the dielectric support and comprising:
- a reference feed terminal;
- a first reference portion electrically connected to the reference feed terminal, the first reference portion being elongated in the first direction spaced from the first signal portion in a second direction perpendicular to the first direction by a first gap distance, and comprising a second conductor termination in the first direction, the first conductor termination of the first signal portion being offset in the first direction from the second conductor termination of the first reference portion;
- and
- a second reference portion elongated in the first direction and spaced from the second signal portion in the second direction by a second gap distance that is greater than the first gap distance, the second reference portion terminating in the first direction at the first reference portion;
- and
- a circuit board disposed within the housing and comprising circuitry coupled to the antenna device to transmit and/or receive signals via the antenna device, the circuitry including:
- a feed port coupled to the signal feed terminal of the first conductor;
- and
- a reference port coupled to the reference feed terminal of the second conductor.
A method of operating an antenna device comprising a dielectric support, a first conductor disposed on the dielectric support, and a second conductor disposed on the dielectric support, the first conductor comprising a signal feed terminal, a first signal portion, and a second signal portion, the first signal portion being elongated in a first direction and comprising a first conductor termination in the first direction, the second signal portion being elongated in the first direction, the second signal portion terminating in the first direction at the first signal portion, the second conductor comprising a reference feed terminal, a first reference portion, and a second reference portion, the first reference portion being electrically connected to the reference feed terminal, the first reference portion being elongated in the first direction spaced from the first signal portion in a second direction perpendicular to the first direction by a first gap distance, and the first reference portion comprising a second conductor termination in the first direction, the first conductor termination of the first signal portion being offset in the first direction from the second conductor termination of the first reference portion, the second reference portion being elongated in the first direction and spaced from the second signal portion in the second direction by a second gap distance that is greater than the first gap distance, and the second reference portion terminating in the first direction at the first reference portion, the method comprising:
- transmitting and/or receiving signals via the antenna device via a feed port coupled to the signal feed terminal of the first conductor and a reference port coupled to the reference feed terminal of the second conductor.
Dependencies are inferred from the claim text.