Back to results
US 2007/0176836 A1Published application
U-antenna
AssigneeAirgain Incorporated
InventorsOleg Jurievich Abramov, Farid Ibragimovich Nagaev, Randy Salo
Life of this patent
Estimating the term…
Abstract
Systems and methods for a directional antenna and methods for manufacturing the same are described. One system and method includes a plurality of antenna elements. Groups of the antenna elements cooperate to form a directional antennas. In one configuration, a first element is configured as a driven element and a second element is configured as a delayed element. The elements are separated by a distance such that an RF signal radiated from the driven element constructively combines with a delayed RF signal radiated by the delay element. In another configuration, the second element can be configured as the driven element and the first element configured as the delayed element.
Claims18
An antenna system comprising:
- a first monopole element;
- and a second monopole element;
- a phase shift element connecting a first end of the first monopole to a first end of the second monopole;
- a first switch which controllably connects a radio signal to the first end of the first monopole element;
- a second switch which controllably connects the radio signal to the first end of the second monopole element;
- wherein when the first switch connects the radio signal to the first end of the first monopole element, the second switch disconnects the radio signal from the first end of the second monopole element, the radio signal directly drives the first monopole element and drives the second monopole element after passing through the phase shift element;
- and
- wherein when the first switch is opened, disconnecting the radio signal from the first end of the first monopole element, the second switch is closed connecting the radio frequency signal to the first end of the second monopole element, the radio signal directly drives the second monopole element and drives the first monopole element after passing through the phase shift element;
- wherein the adaptive distance between the first and second monopole elements is selected such that the radio signals radiated by the two monopole elements add constructively if a second direction.
6 more elements
A method of transmitting a radio signal, the method comprising:
- operating a first switch module to connect the radio signal to a first end of a first monopole element;
- operating a second switch module to disconnect the radio frequency signal from a first end of a second monopole element, wherein the first end of the first monopole element is connected to the first end of the second monopole element by a phase shift element;
- directly driving the first monopole element with the radio signal;
- driving the second monopole element with the radio signal after the radio signal has been delayed by the phase shift element, wherein the first and second monopole elements are separated by an additive distance such that radio signals radiated by the two monopole elements add constructively if a first direction.
1 more element
An antenna comprising:
- a first switch module adapted to receive a radio signal and to provide the radio signal to a first monopole thereby adapting the first monopole to be a driven element, and to provide the radio signal to a second monopole after the radio signal has been delayed, thereby adapting the second monopole to be a delayed driven element, wherein the driven and delayed elements are separated by an additive distance such that radio signals radiated by the two elements add constructively if a first direction;
- and
- a second switch module adapted to receive the radio signal and to provide the radio signal to the second monopole thereby adapting the second monopole to be the driven element, and to provide the radio signal to the first monopole after the radio signal has been delayed, thereby adapting the first monopole to be the delayed driven element, wherein the signals radiated by the two elements add constructively if a second direction.
A wireless communication device comprising:
- an antenna comprising,
- a first and a second monopole element separated by an additive distance from each other,
- a phase shift element connecting first end of the first monopole to a first end of the second monopole,
- a first switch adapted to connect a radio signal to the first end of the first monopole element,
- a second switch adapted to connect the radio signal to the first end of the second monopole element,
- wherein when the first switch is closed, connecting the radio signal to the first end of the first monopole element, the second switch is opened disconnecting the radio frequency signal from the first end of the second monopole element, the radio signal directly drives the first monopole element and drives the second monopole element after passing through the phase shift element;
- wherein the adaptive distance between the first and second monopole elements is selected such that the radio signals radiated by the two monopole elements add constructively if a first direction, and
- wherein when the first switch is opened, disconnecting the radio signal from the first end of the first monopole element, the second switch is closed connecting the radio frequency signal to the first end of the second monopole element, the radio signal directly drives the second monopole element and drives the first monopole element after passing through the phase shift element;
- wherein the adaptive distance between the first and second monopole elements is selected such that the radio signals radiated by the two monopole elements add constructively if a second direction.
- a radio module configured to transmit and receive radio frequency signals;
- a controller adapted to control the first and second switch to configure the antenna to radiate radio signals in a desired direction.
8 more elements
A wireless communication device comprising:
- a plurality of antennas, each antenna comprising,
- a first switch module adapted to receive a radio signal and provide the radio signal to a first monopole thereby adapting the first monopole to be a driven element, and to provide the radio signal to a second monopole after the radio signal has been delayed, thereby adapting the second monopole to be a delayed driven element, wherein the driven and delayed elements are separated by an additive distance such that radio signals radiated by the two elements add constructively if a first direction,
- a second switch module adapted to receive the radio signal and to provide the radio signal to the second monopole thereby adapting the second monopole to be the driven element, and to provide the radio signal to the first monopole after the radio signal has been delayed, thereby adapting the first monopole to be the delayed driven element, wherein the signals radiated by the two elements add constructively if a second direction.
- a radio module comprising a plurality of radios, wherein a first radio is communicatively coupled to a first antenna and a second radio is communicatively coupled to a second antenna.
1 more element
Dependencies are inferred from the claim text.