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System and method of optical antenna tuning

專利號
US11177574B2
公開日期
2021-11-16
申請人
AT&T INTELLECTUAL PROPERTY I, L.P.(US GA Atlanta)
發(fā)明人
Robert R. Miller, II
IPC分類
H01Q9/04; H01Q9/14; H04B10/80
技術(shù)領(lǐng)域
radiating,antenna,filter,may,active,photonic,node,or,e.g,nodes
地域: GA GA Atlanta

摘要

A method includes determining an operating frequency of an antenna at a component of the antenna. The method includes determining, at the component of the antenna, a filter node of a plurality of filter nodes to activate to tune the antenna to the operating frequency. The method includes transmitting power to the filter node, wherein the power is transmitted via a first optical fiber. The method also includes sending a signal from the component to a light source. The activation of the light source sends an optical signal to the filter node. The filter node adjusts a characteristic of a radiating element coupled to the filter node using the power responsive to the optical signal. Adjustment of the characteristic facilitates tuning the antenna to the operating frequency.

說明書

The feed 102 may transmit the RF signals 186 and 188 to one or more of the radiating elements 130, 132, 134, and 136. For example, the feed 102 may transmit the RF signal 186 to the radiating elements 130 and 132 on one side of the feed 102 and may transmit the RF signal 188 to the radiating elements 134 and 136 on the other side of the feed 102. The activated radiating element(s) of the radiating elements 130 and 132 may transmit the RF signal 186 over a wireless medium. For example, the activated radiating element(s) of the radiating elements 130 and 132 may radiate energy from the RF signal 186 as electromagnetic waves (radio waves) over the wireless medium. Similarly, the activated radiating element(s) of the radiating elements 134 and 136 on the other side of the feed 102 may transmit the RF signal 188 over the wireless medium. The particular frequency of operation to which the antenna 100 is tuned may be based on how many of the radiating elements 130, 132, 134, and 136 are activated. For example, a higher number (e.g., 4) of activated radiating element(s) of the radiating elements 130, 132, 134, and 136 may correspond to a longer antenna and a lower (e.g., 0.5 GHz) frequency of operation. As another example, a lower number (e.g., 2) of activated radiating element(s) of the radiating elements 130, 132, 134, and 136 may correspond to a shorter antenna and a higher (e.g., 1 GHz) frequency of operation. The RF signals 186 and 188 may be transmitted by the activated radiating element(s) of the radiating elements 130, 132, 134, and 136 at the particular frequency of operation to which the antenna 100 is tuned.

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