Space Exploration Technologies has been granted a patent for a parabolic antenna assembly featuring a main reflector, feed system with horn and dielectric portion, and sub-reflector with body and stem portions for improved RF communication. The design includes an axially-symmetric choke for virtual continuity at the reflecting surface. GlobalData’s report on Space Exploration Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Space Exploration Technologies, V2V communication antennas was a key innovation area identified from patents. Space Exploration Technologies's grant share as of January 2024 was 49%. Grant share is based on the ratio of number of grants to total number of patents.

Parabolic antenna assembly with sub-reflector and axially-symmetric choke

Source: United States Patent and Trademark Office (USPTO). Credit: Space Exploration Technologies Corp

A recently granted patent (Publication Number: US11888230B1) discloses a parabolic antenna assembly that includes a main reflector, a feed system with a horn and a dielectric portion, and a sub-reflector with a body portion and a stem portion mechanically coupled to each other. The sub-reflector's reflecting surface is defined by both the body and stem portions, with the dielectric portion spacing it from the horn. Additionally, the sub-reflector features an axially-symmetric choke for virtual continuity at the reflecting surface, with the channel defining a portion of this choke. The stem portion may be partially within the dielectric portion, and mechanical coupling between the body and stem portions can be achieved through methods like screws, snap fits, or interference fits.

Furthermore, the patent details the configuration of the sub-reflector, dielectric portion, and choke to provide optimal performance. The reflecting surface of the sub-reflector is made from metal, and when coupled, the body and stem portions create a conductive path. The choke includes both axial and radial portions, with specific lengths relative to the wavelength of the electromagnetic signal being utilized. The dielectric portion's internal collar and opening interact with the body portion, ensuring proper alignment and functionality of the assembly. Overall, the patented parabolic antenna assembly offers a novel design that enhances RF communication efficiency and signal quality, making it a significant development in the field of antenna technology.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.