The aim of the project is to design a dual band microstrip antenna which will be operating in the wireless LAN band, IEEE 802.11 a/b/g. This paper discusses the design of the multiband microstrip antenna operating at frequency 2.4 GHz and 5.2 GHz. By selecting the material permittivity value and prudence in managing the antenna dimensions, it is proven to produce an antenna with target gain although the antenna only uses 1 branch and 2-levels of directors. The antenna test results show a bandwidth gain of 7.98 dB, S11 parameter of -16.223 dB with a bidirectional radiation pattern. The realization of the antenna is committed by using dielectric material with relative permittivity of 4.3. At the time of simulation, optimization is performed by changing the dimension of driven, director, reflector, and distance between levels. The selection of material permittivity value and dimension setting is committed carefully in order to gain > 5 dB. This research designs rectangular Yagi microstrip antenna with two-levels of directors which can work at 2.4 GHz frequency (Wi-Fi Application). Therefore, it needs an external antenna with a higher gain than the internal antenna. Wi-Fi has an omnidirectional radiation pattern that results in a limited range of emissions. Considering all of the above performance parameters, the simulated Half-wave Dipole Antenna will be an ideal option for the WLAN and Wi-Fi systems.Īn antenna is the most important part of a wireless communication system. The other obtained performance parameters of the antenna are Surface Current, Bandwidth, etc. The antenna's efficiency was determined as 99.70%, which was calculated by using the value of Gain and Directivity. A Gain of 2.026 dBi and a Directivity of 2.032 dBi was also achieved, respectively. After completing the simulation of the antenna, a Return Loss of -31.019 dB has been successfullyĪchieved.

The antenna has been developed using the Copper (annealed) and the Perfect Electrical Conductor (PEC) material in the CST Studio Suite 2019 Software. Since better performances and efficiency are expected for WLAN and Wi-Fi systems in the future, considering these issues, a Half-wave Dipole Antenna has been designed with an operating frequency of 2.45 GHz (ISM-Band). Nowadays, high-speed data transmission can be provided to a whole area or a building using WLAN and Wi-Fi systems. Due to the low cost and high data transmission speed, the demand for wireless communication systems (WLAN, Wi-Fi) is increasing day by day.

Wifi patch antenna