Dual-Matrix Composite Wideband Antenna Structures for CubeSats
نویسندگان
چکیده
A concept for a deployable high-performance antenna structure for CubeSats is presented. The detailed design of a conical log-spiral antenna with wideband operation between 250 500 MHz, a gain of above 5 dB, and circular polarization is performed using electromagnetic simulations. A structural concept using dual-matrix composites with soft hinge regions, allowing the antenna to be packaged into small volumes, is developed. An antenna prototype is fabricated using Astroquartz fibers, an epoxy matrix, and a high-strain silicone matrix for the hinge regions. Structural and electromagnetic analysis is conducted and shows good agreement with predicted performance thus demonstrating the validity of the proposed antenna concept.
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