Microwave Propagation in Circular Waveguide made of Epoxy and Fused Silica Composite

Abstract

Epoxy-Fused silica composite was created by mixing the Fused silica and Epoxy using powder processing methods. Fused silica powder has worked as a filler material in the epoxy material. This paper represents the design, fabrication, and testing of the circular waveguide fabricated from Epoxy-Fused Silica polymer-ceramic composite. The dielectric loss of the composite is viewed as 0.0012 at 9.5 GHz, which is lower than the dielectric loss (0.012) of the unfilled epoxy. The dielectric consistency of the composite (€r 2.5) roughly continues as before as the unfilled epoxy. Thus, a new material composite is formed, and the rod is fabricated for X band applications. The rod is sputtered using a silver target as-deposited material. So, a circular waveguide is formed for the low loss microwave propagation. The insertion loss of the circular waveguide was found 0.49 dB.  Thus, a circular waveguide is formed with polymer and ceramic composite a new material for low loss microwave applications. The practical value holds good in agreement with the theoretical approaches.