Saab has filed a patent for a notch antenna structure that includes multiple notch antenna elements arranged in rows. Each element consists of a base portion with two opposing surfaces, two vertically extending electrically conductive bodies, and a tapering gap between them. The structure has a bottom plane to receive the elements, and the first conductive body has a leg portion with a feed arrangement near the tapering gap. The patent aims to improve antenna performance and efficiency. GlobalData’s report on Saab 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 Saab, lidar scanners was a key innovation area identified from patents. Saab's grant share as of September 2023 was 65%. Grant share is based on the ratio of number of grants to total number of patents.

A notch antenna structure with multiple antenna elements

Source: United States Patent and Trademark Office (USPTO). Credit: Saab AB

A recently filed patent (Publication Number: US20230318191A1) describes a notch antenna structure that includes multiple notch antenna elements arranged in at least one row. Each notch antenna element consists of a base portion with opposing surfaces, two electrically conductive bodies extending vertically from one surface, and a tapering gap between them. The structure also includes a bottom plane to receive the second surface of the antenna elements. The first electrically conductive body has a leg portion with a feed arrangement near the tapering gap.

In one embodiment, the notch antenna elements are joined at the base portion to form a common integral row. The base portion may have a through hole via for accessing the feed point. The first electrically conductive body includes a second leg portion integral with the base portion's first surface, separated from the leg portion by a distance (d).

The notch antenna elements form a three-dimensional (3D) metal structure with length (L), width (W), and thickness (T) in orthogonal directions (x, y, z). The bottom plane has a recess along the second direction (y) to accommodate the row of antenna elements. The 3D metal structure can be a solid metal structure.

Each electrically conductive body may have a circumferentially enclosed cavity at an interior portion. The conductive bodies extend from a lower portion to a tapered upper portion, with the cavity following the outer contour of at least the tapered upper portion.

The feed arrangement includes a connector integral with the leg portion, which can be a coaxial connector. The tapering gap can be either step-wise or continuously tapering.

The patent also mentions a vehicle comprising the described notch antenna structure.

In summary, the patent describes a notch antenna structure with multiple antenna elements arranged in a row. The structure includes specific features such as a tapering gap, a bottom plane, and a feed arrangement. The antenna elements form a 3D metal structure, and the patent also mentions the use of a coaxial connector. The patent also extends the application of the notch antenna structure to vehicles.

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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.