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The polymer nanocomposite thin film is of interest due to many advantages for electromagnetic interference (EMI) shielding. In this work, low temperature (−30 ± 2 °C) in situ synthesized polyaniline (PANI)–MnO 2 nanorod composite (PMN) were solution processed, followed by acid vapor treatment for preparing free standing films and EMI shielding effectiveness (SE) were investigated in the frequency range i.e. X-band (8.2–12.4 GHz) and Ku-band (12.4–18 GHz). As prepared PMN film (169 ± 2 µ m) shows most effective EMI SE ~ 35 dB (EMI shielding due to absorption, SE A ~ 24 dB and EMI shielding due to reflection SE R ~ 11 dB) in the X-band which was observed to be ~39 dB (SE A ~ 29 dB and SE R ~ 10 dB) in the Ku-band. The variations of conductivity, penetration depth, EM attenuation constant of the PMN film in the X-band and Ku-band were also investigated along with dielectric study.
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Bora et al. (2017) studied this question.
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