In this paper a low profile patch antenna has been designed for 5G communication application. The resonating frequency has been chosen as 3.5 GHz for 5G application. FR4 epoxy material with permittivity of 4.3 has been chosen for the substrate material which has fire redundant property. The size of the substrate is 25.2×48 mm2. The main radiating patch is in a shape of ellipse and the line feed technique is used. The simulation is done by CST microwave studio software. Different parameters like S-Parameter, Antenna Gain, Directivity, Efficiency has been observed. The antenna has a gain of more than 5 dB which is very useful for communication applications. The antenna is designed for 5G communication applications.
The aim of this paper is to present a simulation and analysis of a rectangular microstrip patch antenna with three different structural modifications to reduce the size of the antenna. We have tried to decrease the size of the antenna by inducing three different shaped slits inside the patch of the antenna. All these models have been designed and analyzed using CST Microwave Studio software. For designing the antennas, Flame Retardant 4 (FR-4 lossy) has been used as the substrate material with a dielectric constant of Ԑr=4.3. The antenna works at the frequency of 2.4 GHz. Performance characteristics such as return loss S11 parameter<-10 dB, directivity, side lobe level, gain and bandwidth of each of the modified designs are obtained and compared with the original design. We were able to reduce the size by maximum 18% and minimum 7% by only inducing the slits, while maintain the performance.
In this paper it is shown the design, simulation and characterization of Moly Permalloy based electromagnetic sensor in MEMS software. The dimension of the device is minimized to the smallest the software can simulate which is 1 micron. Total of 9 models had been simulated which differs in thickness of the material and designs. A new design was created to compare the results with the existing designs. The creation of the new design has given better results than the existing designs in terms of the current flow and the magnetic induction.
In this work, a gesture and motion sensing system is explored with the Nintendo Wiimote and infra-red LEDs array. With the eminent Nintendo Wiimote controller, the personal computers and terminals can be connected to the system easily via Bluetooth wireless communication system. Although there are many devices that can be used to track the gesture and motion, they are able to connect to another device easily. The developed system is capable of making different applications as the interfacing problem has resolve. C# programming language is used to develop the graphical user interface and the mathematical algorithm. In order to verify the developed system, the transition of presentation slide is tested. By adjusting the sensitivity and threshold via mathematical formula, the gesture and motion sensing system is working excellently.
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