3D Plotted Scaled Electroplated Ship Models for Broadband Shipboard HF Antenna Measurements from 0.4 - 6 GHz

Conference: GeMIC 2008 - German Microwave Conference
03/10/2008 - 03/12/2008 at Hamburg-Harburg, Germany

Proceedings: GeMIC 2008

Pages: 4Language: englishTyp: PDF

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Berndt, Olaf; Gruzewski, Sven; Fickenscher, Thomas (Chair of High-Frequency Engineering and Optoelectronics - Helmut Schmidt University / University of the Federal Armed Forces Hamburg, 22043 Hamburg, Germany)

For the well known scaled measurements for antenna design on naval ships a new scaling technique based on highly accurate electroplated plastics models is presented. Using a 3D plotter, the ship model is made of ABS ploymer. Due to the high resolution of this technique of 0.12 mm a scaling factor of 1/200th instead of commonly used scaling factors of 1/48th or 1/50th can be used with sufficient accuracy. Hence, the scaled frequency range and the dimensions of the model are appropriate for regular microwave anechoic chambers. Furthermore the production time was cut by 90% und the costs for the ship model can be reduced to 1/20th.