An L-Slot Frequency Reconfigurable Antenna Based on MEMS Technology

Abstract

Given the shortage of spectrum resources and the demand for communication systems of diminutive size, multi-function, and adaptive characteristics, this paper proposes an L-slot frequency reconfigurable antenna based on the MEMS switch. The antenna size is 4.07 × 5.27 mm2 and is suitable for the U-band. The antenna structure consists of two RF MEMS switches, a Rogers RT5880 dielectric substrate, an L-slot patch, and a full-coverage ground. The switch is of a series contact structure and is arranged at the corner of an L-slot. By controlling the on and off state of the switch, the antenna can switch between four states of 42.36, 47.65, 53.13, and 56.72 GHz. According to the simulation results in CST STUDIO SUITE 2018, the maximum gain of the antenna is 7.90 dB, the impedance bandwidth of each state is above 1 GHz, and the direction is mainly consistent. The antenna can meet the demand for multi-frequency millimeter wave communication.

Frequency-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna

“…This distinction underscores the novelty and originality of our research contribution. Additionally, the comparison reveals that our proposed antenna boasts a simpler switching mechanism in contrast to previous works [ 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Furthermore, our antenna achieves a more expansive tuning range compared to references [ 26 , 29 , 30 , 32 ], while also delivering superior gain performance relative to the antennas featured in [ 26 , 27 , 30 , 31 , 32 ].…”

“…Additionally, the comparison reveals that our proposed antenna boasts a simpler switching mechanism in contrast to previous works [ 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Furthermore, our antenna achieves a more expansive tuning range compared to references [ 26 , 29 , 30 , 32 ], while also delivering superior gain performance relative to the antennas featured in [ 26 , 27 , 30 , 31 , 32 ]. Moreover, our antenna’s achieved frequency-tuning range and gain are on par with those reported in studies employing larger arrays of 16 elements [ 28 ].…”

“…Additionally, the comparison reveals that our proposed tenna boasts a simpler switching mechanism in contrast to previous works [26][27][28][29][30][31][32]. thermore, our antenna achieves a more expansive tuning range compared to referen [26,29,30,32], while also delivering superior gain performance relative to the antennas tured in [26,27,[30][31][32]. Moreover, our antenna's achieved frequency-tuning range and g are on par with those reported in studies employing larger arrays of 16 elements [ Conversely, the higher gain reported in [29] can be attributed to using a Fabry-Perot Table 2 compares the performance of the proposed mmWave reconfigurable DRA against the existing counterparts reported in the literature.…”