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Boundary choke between modules in phased array antennas

專利號(hào)
US11996621B1
公開日期
2024-05-28
申請(qǐng)人
Amazon Technologies, Inc.(US WA Seattle)
發(fā)明人
Peter James Hetzel
IPC分類
H01Q21/06; H01Q1/22; H01Q1/38; H01Q1/42; H04B1/10
技術(shù)領(lǐng)域
antenna,vias,module,satellite,may,system,or,in,satellites,modules
地域: WA WA Seattle

摘要

Technologies directed to a radio frequency (RF) boundary choke between modules in phased array antennas. An antenna module may include a circuit board having one or more conducting layers and one or more electrically insulating layers. The antenna module may include an antenna disposed on a first surface of the circuit board. The antenna module may further include radio frequency front end (RFFE) circuitry disposed on a second surface of the circuit board. The antenna module further includes a first set of vias extending between the antenna and the RFFE circuitry and a second set of vias disposed within the circuit board. Each of the second set of vias is positioned along a first axis parallel to and a first distance from a first edge of the antenna module.

說明書

In some embodiments, the one or more antenna elements 406 of antenna modules 402A-B may form a phased array antenna, as discussed below in association with FIG. 7. For example, each antenna element 406 may operate within a common frequency range and use a diversity of phase shifts to steer a main lobe of a transmission/receive signal beam.

In some embodiments, as discussed previously, the antenna modules may form a rectangular structure, as shown in FIG. 4A, however, in some embodiments, the antenna module may be of a different shape, such as a triangular structure, a pentagon structure, a hexagon structure (e.g., a honeycomb shape), and so forth. In some embodiments, the antenna modules may include uniform structures. However, in other embodiments, the antenna structure may include various combinations of sizes and shapes. For example, antenna modules may include rectangular and square structures in combination with one another. In some embodiments, the modules are separated by a uniform distance throughout the array.

As shown in FIG. 4A, a particular antenna module may form an inter-module gap with multiple antenna modules at a common edge of the particular antenna module. This may be achieved by staggering rows and/or columns of the array of antenna modules. For example, a first portion of an edge of a first antenna module may form an inter-module gap with a second antenna module, and a second portion of the edge of the first antenna module may form an inter-module gap with a third antenna module. Using an RF boundary choke for a given edge or boundary of a particular antenna module may effectively mitigate the effects of RF degradation caused by multiple antenna modules disposed proximate to the same boundary of the antenna module.

權(quán)利要求

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