Antenna with selectable elements for use in wireless communications
A system and method for a wireless link to a remote receiver includes a communication device for generating RF and a planar antenna apparatus for transmitting the RF. The planar antenna apparatus includes selectable antenna elements, each of which has gain and a directional radiation pattern. The directional radiation pattern is substantially in the plane of the antenna apparatus. Switching different antenna elements results in a configurable radiation pattern. Alternatively, selecting all or substantially all elements results in an omnidirectional radiation pattern. One or more directors and/or one or more reflectors may be included to constrict the directional radiation pattern. The antenna apparatus may be conformally mounted to a housing containing the communication device and the antenna apparatus.
1. A network peripheral device comprising:
a plurality of individually selectable antennas formed on a first side of a substrate;
a plurality of Y-shaped reflector formed on a second side of the substrate opposite to the first side, each Y-shaped reflector corresponding to one of the plurality of selectable antennas;
a radio frequency feed port configured to receive radio frequency signals generated by a communication device, wherein the plurality of individually selectable antennas form a radially symmetrical layout about the radio frequency feed port;
an antenna element selector configured to couple and decouple the radio frequency feed port to one or more of the plurality of individually selectable antennas, wherein a radiation pattern is changed based on the coupling and decoupling of the radio frequency feed port and the one or more of the plurality of individually selectable antennas, and wherein the radiation pattern is substantially omnidirectional when the radio frequency port is coupled to a subset of the plurality of individually selectable antennas; and
a plurality of light emitting diodes (LEDs) each to be activated and deactivated depending on a selection and de-selection of respective antennas from among the plurality of individually selectable antennas by the antenna element selector.
2. The device of claim 1 , wherein the network peripheral device includes an access point configured to communicate to one or more remote receiving nodes over a wireless link or network.
3. The device of claim 1 , further comprising a modulator/demodulator that is communicatively coupled to the communication device, wherein the modulator/demodulator is configured to convert data received by the device into an RF signal to be transmitted to one or more remote receiving nodes.
4. The device of claim 1 , wherein each LED is lit when a corresponding antenna among the plurality of individually selectable antennas is selected.
5. The device of claim 1 , further comprising a ground component formed on the second side of the substrate, wherein a portion of the ground component is configured to form an arrow-shaped bent dipole in conjunction with one or more of the selectable antennas.
6. The device of claim 1 , further comprising one or more directors and one or more gain directors.
7. The device of claim 6 , wherein said one or more directors and one or more gain directors are formed on the first side of the substrate.
8. The device of claim 6 , wherein said one or more directors and one or more gain directors are formed on the second side of the substrate.
9. The device of claim 5 , wherein each antenna is coplanar with the ground component.
10. The device of claim 5 , wherein the antenna element selector is mounted on a printed circuit board (PCB), and wherein the PCB is electrically coupled to the plurality of individually selectable antennas.
11. A method for providing a network peripheral device, the method comprising:
providing a plurality of individually selectable antennas on a first side of a substrate;
providing a plurality of Y-shaped reflector on a second side of the substrate opposite to the first side, each Y-shaped reflector corresponding to one of the plurality of selectable antennas;
receiving radio frequency signals generated by a communication device, by a radio frequency feed port, wherein the plurality of individually selectable antennas form a radially symmetrical layout about the radio frequency feed port;
coupling and decoupling the radio frequency feed port to one or more of the plurality of individually selectable antennas, by an antenna element selector to change a radiation pattern based on the coupling and decoupling of the radio frequency feed port and the one or more of the plurality of individually selectable antennas, wherein the radiation pattern is substantially omnidirectional when the radio frequency port is coupled to a subset of the plurality of individually selectable antennas; and
activating and deactivating a plurality of light emitting diodes (LEDs), depending on a selection and de-selection of respective antennas from among the plurality of individually selectable antennas by the antenna element selector.
12. The method of claim 11 , further comprising communicating with one or more remote receiving nodes over a wireless link or network by an access point included in the network peripheral device.
13. The method of claim 11 , further comprising converting data received by the network peripheral device into an RF signal to be transmitted to one or more remote receiving nodes, by a modulator/demodulator that is communicatively coupled to the communication device.
14. The method of claim 11 , further comprising activating each LED when a corresponding antenna among the plurality of individually selectable antennas is selected.
15. The method of claim 11 , further comprising providing a ground component formed on the second side of the substrate, wherein a portion of the ground component is configured to form an arrow-shaped bent dipole in conjunction with one or more of the selectable antennas.
16. The method of claim 11 , further comprising providing one or more directors and one or more gain directors.
17. The method of claim 16 , wherein said one or more directors and one or more gain directors are formed on the first side of the substrate.
18. The device of claim 16 , wherein said one or more directors and one or more gain directors are formed on the second side of the substrate.
19. The device of claim 15 , wherein each antenna is coplanar with the ground component.
20. The device of claim 15 , wherein the antenna element selector is mounted on a printed circuit board (PCB), and wherein the PCB is electrically coupled to the plurality of individually selectable antennas.