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Boundary choke between modules in phased array antennas

專利號
US11996621B1
公開日期
2024-05-28
申請人
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 104A-B include a slot antenna that includes a metal surface (e.g., a flat metal surface) with one or more holes or slots removed (e.g., cut out). The slot antenna may radiate electromagnetic waves similar to a dipole antenna. The shape and size of the slot, in addition to the driving frequency, may determine the radiation pattern.

In at least one embodiment, the antenna module 100 includes an RF choke located between the first via (not shown) and an inter-module gap formed between two or more antenna modules. The RF choke includes a set of vias, each disposed within an insulating layer of the circuit board 106 and coupled to adjacent conducting layers of the circuit board 106. The set of vias may be disposed in a first arrangement (e.g., vias 142 of FIG. 1B). Each via of the set of vias may be positioned at a first distance from the inter-module gap. The first distance may correspond to a wavelength (e.g., a quarter wavelength choke, a three-quarter wavelength choke, etc.) of an operating frequency of the antennas 104A-B.

權(quán)利要求

1
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