Design And Realization of Dual-Band Linear Array Microstrip Antenna With 4x1 element For WiFi And 5G Communication System
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Abstract
Nowadays, the need for long-distance communication with wireless communication technology is increasing. The popular wireless communication technology currently used is at a frequency of 2.4 GHz, namely Wi-Fi. In addition, to meet the needs of high data rates, low power consumption, and greater network capacity, the development of 5G technology is needed. However, antennas generally work only at one resonant frequency so it is impossible to be used in other communication systems simultaneously. Therefore, this research proposes a dual-band microstrip antenna design using the slot method and the gain is increased using the array method. The antenna design is proposed at dual frequencies operating at 2.4 GHz frequency for Wi-Fi communication and 3.5 GHz frequency for 5G communication using FR4-Epoxy substrate with dielectric constant price of 4.4 and thickness of 1.6 mm. The slot method is applied to accommodate the dual band frequency resonant mode and improve the impedance matching at the second resonant frequency so that the antenna is able to operate at the desired frequency and the linear array method is applied to strive to increase the antenna gain. The main contribution of this research is to produce an antenna that can operate at two different frequencies with high gain. Antenna design and simulation will be carried out using software. After the design and simulation can operate according to parameters, it will then be tested technically. This research is targeted to produce an antenna with dual-band frequency and gain ≥ 5 dB. Based on the design and measurement results, the antenna that has been made has a resonant frequency at fr1 2.48 GHz and at fr2 3.61 GHz. The specifications at fr1 and fr2 are return loss values of -33.14 dB and -11.05 respectively, VSWR values of 1.04 and 1.88, bandwidths of 110 MHz and 270 MHz. The antenna is capable of producing a gain of 8.18 dB at fr 2.4 GHz and 4.28 db at fr 3.5 GHz.
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