Reconfigurable antenna with cluster of radiating pixelates
View Patent ↗Similar to cell based electronics systems that employ a sea of small unit cells in large scale arrays, such as thin film display monitors or semiconductor memories, an antenna array employs micron to centimeter size antenna pixelate cells that are integrated to form the plate of an antenna. Each row and column of cells in the antenna array may be accessed by digital logic and the RF transmission/reception state of the switchable cell changed. Thus, the antenna plate can be reconfigured and its radiating plate reformed to a specific pattern as an element of a larger array of antennas in wafer scale form.
1. A system comprising:
a matrix of antenna pixelate cells wherein each pixelate cell either transmits a radio frequency (RF) signal to air or terminates routing of the RF signal based on switching of the pixelate cells,
wherein at least one of the pixelate cells comprises a plurality of switchable ring segments arranged as a segmented annular ring forming a single antenna element that is reconfigurable according to which switchable ring segments are switched on or off; and
wherein the plurality of switchable ring segments are switched such that the segmented annular ring is configured to transmit the RF signal as one of a left-hand circular polarization (LHCP) signal, a right-hand-circular polarization (RHCP) signal, or a linear polarization signal; and
the matrix forms a reconfigurable antenna pattern that provides a specific antenna pattern based on which specific pixelate cells are switched to transmit and which specific pixelate cells are switched to terminate.
2. The system of claim 1 , further comprising:
a feed network connected to the antenna pixelate cells so that beam forming is provided for a specific antenna pattern, and wherein:
beam steering and beam shaping are effected based on which specific pixelate cells are switched to transmit and which specific pixelate cells are switched to terminate.
3. The system of claim 1 , further comprising:
a feed network connected to the antenna pixelate cells so that spatial power combining is provided for the specific antenna pattern.
4. The system of claim 1 , further comprising:
a feed network connected to the antenna pixelate cells such that beam steering is produced for the specific antenna pattern based on varying a phase and an amplitude of the signal fed to each of the one or more single antenna element, polarized pixelate cells.
5. The system of claim 1 , wherein the reconfigurable antenna pattern is ring based such that each of the plurality of pixelate cells comprises a reconfigurable segmented annular ring.
6. The system of claim 1 , wherein the switchable ring segment is switched off bypassing the RF signal fed to the switchable ring segment through an impedance to ground.
7. The system of claim 1 , further comprising:
an array of ring based reconfigurable antenna patterns acting as elements of a wafer scale antenna module with right hand circularly polarized (RHCP), left hand circularly polarized (LHCP), or linear polarization performance.
8. The system of claim 1 , further comprising:
an array of reconfigurable antenna patterns acting as elements of a wafer scale antenna module of a single or multiple frequency transmitter and receiver.
9. The system of claim 1 , further comprising:
an array of reconfigurable antenna patterns acting as elements of a wafer scale antenna module arranged as rows and columns of antenna pixelate cells, the array being configurable based on selecting which specific pixelate cells are switched to transmit and which specific pixelate cells are switched to terminate; and
row and column selected pixelate cells are switched in real time using a controller.
10. The system of claim 1 , further comprising:
an array of reconfigurable antenna patterns acting as elements of a wafer scale antenna module arranged as rows and columns of antenna pixelate cells, the array being configurable based on selecting which specific pixelate cells are switched to transmit and which specific pixelate cells are switched to terminate; and
row and column selected pixelate cells are switched using a non-volatile memory arrangement.
11. The system of claim 1 , further comprising:
an array of reconfigurable antenna patterns acting as elements of a wafer scale antenna module arranged as rows and columns of antenna pixelate cells, the array being configurable based on selecting which specific pixelate cells are switched to transmit and which specific pixelate cells are switched to terminate; and
all selected pixelate cells are intra-connected.
12. The system of claim 1 , wherein
the matrix of antenna pixelate cells is implemented on a single wafer.
13. A method of manufacturing a wafer scale reconfigurable antenna pattern of claim 1 , the method comprising:
using a single poly silicon-on-insulator (SOI) process for forming switch and radiating pixel elements;
using a 4 layer metal process for forming row select, column select, ground, and antenna radiating pixel elements; and
using a back etch process to the antenna radiating pixel element for enhancement of antenna radiating pixel element radiation coupling.
14. A method comprising:
switching each of a plurality of antenna radiating elements either to an RF signal or to a termination so that selected radiating elements switched to the RF signal are arranged in a selected one of a plurality of antenna patterns that can be formed from the plurality of antenna radiating elements,
wherein at least one of the antenna radiating elements comprises a plurality of switchable ring segments arranged as a segmented annular ring forming a single antenna element that is reconfigurable according to which switchable ring segments are switched on or off; and
wherein the plurality of switchable ring segments are switched such that the segmented annular ring is configured to transmit the RF signal as one of a left-hand circular polarization (LHCP) signal, a right-hand-circular polarization (RHCP) signal, or a linear polarization signal.
15. The method of claim 14 , wherein the radiating elements are elements arranged as an array, and the selected antenna pattern is any possible pattern formed by selecting a subset of the array as the selected radiating elements switched to the RF signal.
16. The method of claim 14 , wherein the radiating elements are patch elements arranged as an array, and the selected pattern act as elements of an antenna with right hand circularly polarized (RHCP), left hand circularly polarized (LHCP), vertical, horizontal, or linear polarization performance.
17. The method of claim 14 , wherein the radiating elements are dipole elements arranged as an array, and the selected pattern act as elements of an antenna with right hand circularly polarized (RHCP), left hand circularly polarized (LHCP), vertical, horizontal, or linear polarization performance.
18. The method of claim 14 , further comprising feeding the RF signal through a feed network to the antenna radiating elements and varying a phase and an amplitude of the signal fed to each of the two or more antenna radiating elements such that beam steering is produced for the selected antenna pattern.
19. The method of claim 14 , further comprising:
reconfiguring an antenna in real time by altering the selection of radiating elements switched to the RF signal.