This paper proposes a trifrequency reconfigurable antenna (FRA), which can work in the X-band, Ku-band, and Ka-band, by\ncontrolling only two RF MEMS switches.Theantenna element has a frequency ratio beyond 3 :1 and provides a good candidate for\nthe frequency reconfigurable antenna array, since the size of the antenna is reduced by loading multiple metal shorting holes\nbetween the antenna radiating surface and the ground plate, and the overall size is only...............
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