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SWITCHABLE ACTIVE METASURFACE FOR DUAL BAND GAIN ENHANCEMENT
2022
Progress In Electromagnetics Research M
A novel active metasurface which is switchable to accomplish dual band gain enhancement is reported. The metasurface is used as a superstrate above the dual band patch antenna working at 2.4 GHz and 4.6 GHz. The gain of the antenna is enhanced by 3.5 dB at both frequencies. Switching between the frequencies is enabled by a p-i-n diode. When the p-i-n diode is in the OFF state, gain is enhanced at 2.4 GHz, while gain is reduced at 4.6 GHz. When the p-i-n diode is in the ON state, gain is
doi:10.2528/pierm22051201
fatcat:ylvwp447qzf3bpyvtzv25ehvea