Demonstrating a low temperature organic dense dielectric patch antenna

This paper demonstrates the possible implementation of a low temperature organic dense dielectric patch antenna (DDPA). Instead of using deionised water for the patch material, a mixture of ethanol and methanol was the material of choice as it remains liquid below 0°C. The freezing points of ethanol and methanol are -114.1°C and -97.6°C respectively. The mixture was 80% ethanol, 20% methanol. Reasonable reflection coefficients, efficiencies and gains can be achieved. The maximum gain over the band of interest is 5.62 dB at 1.31 GHz