A. Ghaffar, Xue Jun Li, Boon-Chong Seet, W. A. Awan, Niamat Hussain
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Compact Multiband Frequency Reconfigurable Antenna for 5G Communications
This paper presents a frequency reconfigurable antenna with compact size to cover sub 6 GHz. First, a wideband triangle shape antenna is designed to cover from 2.31 GHz to 4.4 GHz. Two slots are included in the design to get multiband response. To make the antenna frequency reconfigurable, two pin diodes are added to get dual-band and tri-band mode. By changing the states of pin diode, resonance in the sub 6GHz band (2.5 GHz, 3.5 GHz, and 3.7-4.2 GHz) is achieved. When both diodes are on, it resonate at 2.18-2.36 GHz, 2.68-3.32GHz, and 3.75-4.50 GHz. In dual-band case, when both diodes are off, the resonance frequency is 2.25-2.58 GHz, and 3.5-4.46 GHz.
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