Kratos Defense & Security Solutions has been granted a patent for a dual reflector earth station antenna system that optimizes signal gain for both uplink and downlink frequencies. The system includes a reflector, tracking assemblies, a feed horn, and a control system to maximize antenna performance. GlobalData’s report on Kratos Defense & Security Solutions 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 Kratos Defense & Security Solutions, Drone jamming technology was a key innovation area identified from patents. Kratos Defense & Security Solutions's grant share as of February 2024 was 77%. Grant share is based on the ratio of number of grants to total number of patents.
Dual reflector earth station antenna system for transmitting and receiving
A recently granted patent (Publication Number: US11923616B2) discloses a dual reflector earth station antenna (ESA) system designed for transmitting uplink in one frequency band and receiving downlink in another. The system includes a reflector, a reflector tracking assembly, a feed horn optimized for a near-constant phase center for both frequency bands, a subreflector tracking assembly capable of tracking in multiple axes, and a control system. The control system adjusts the subreflector to maximize signal gain for both frequency bands simultaneously, thanks to the feed horn's optimization.
Furthermore, the system incorporates feedback sensors to monitor the subreflector tracking assembly's position, allowing for adjustments if travel limits are reached. The feed horn's design includes optimized varying flare angles to maintain a near-constant phase center over a range of frequencies, specifically 17.7-31 GHz. The patent also details a method for reflector tracking with this ESA system, involving periodic adjustments of the subreflector tracking assembly to maximize signal gain in both frequency bands. Adjustments can be triggered by temperature changes or preset intervals, with a focus on achieving the highest signal gain within a defined period. The method also includes utilizing linear actuators for adjustments and resetting recorded positions for optimal performance.
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