Abstract

Flexible antennas are integral to the development of next generation electronics through reduction in SWaP resulting in improved capabilities. Here, we show the in-situ performance of flexible microwave antennas under environmental stress conditions based on MIL-STD-810 testing standards for the first time. Flexible dual-band antennas (2.4 GHz and 4.6 GHz) are fabricated by etching patterned Cu clad RO3003 and assessed for their performance under environmental stresses while operating at high temperature (65 °C), low temperature (-40 °C), in thermal shock between the high and low temperatures, temperature-humidity (85 °C / 85 % RH) or water immersion. Coated and non-coated antennas showed robustness during the environmental exposures as they could function satisfactorily under most stress conditions.

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