Multi-Band Rotary Joint for Antenna Feeds/Waveguides

Diamond's approach to a practical solution for a multi-band rotary joint addresses areas, which include the required operating frequency bands, the high transmit power levels, and the tight packaging constraints. Diamond uses innovative design approaches, such as the patented "compressive choke", which allows for smaller package sizes without degrading electrical performance, and non-contacting, capacitively coupled rotary joint, which provides long life. Diamond has recently completed delivery on tightly packaged, ruggedized, dual channel rotary joints for Humvee mounted Com-On-the-Move systems as well as Airborne mounted SATCOM platforms. We are well aware that there are many platforms on which antenna system size is a critical factor. For Phase I, Diamond Antenna will complete electrical design, including simulation, and will provide an envelope drawing that shows the overall size with the mechanical interfaces. Phase I will provide technical analyses, design trade studies, and various design solutions and their predicted operational performance. The Phase I Option will provide for the actual electrical/mechanical documentation/drawing effort. This will then make the transition into Phase II a seamless event allowing us to release our drawings into Diamond's manufacturing process, which will provide for the fabrication, assembly and test of the prototypes.