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CNC-milling a corrugated horn antenna

Submitter: Jorrit Siebenga
Description: Today, a mechanical build worth sharing.

Last month we were challenged by TU/e student Sjoerd Aker with a classic antenna design, a corrugated horn antenna or feed.

Our manufacturing approach however, was less obvious.
Starting off with a 75kg chump of aluminum, our CNC station reduced this to approximately 5% of its initial weight.

After some additional lathing, milling and hand laboring the additional parts such as semi-rigid cables, connectors, an orthomode transducer, 2-component resin and mounting, we received the satisfying message from the TU Eindhoven anechoic chamber that measurements succeeded!
Copyright: Mechanical Department
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