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Average change in S11 in dB of polymer substrate-based antennas for (a) PI, PDMS and PTFE that operate at a frequency range of 2.2–2.5 GHz, (b) PTFE, PDMS and PET that operate at a frequency range of 2.5–5.0 GHz, (c) PI, PTFE, PDMS and LCP that operate at frequency range greater than 5 GHz.
