Design of Microstrip Band Pass Filter with the Effect of Slot Width For 5g Applications
Keywords:
Band pass filter, rectangular slots, microstrip, HFSS, 5G.Abstract
In wireless communication, design of filters play an important role in narrowing and broadening the bandwidth and ensures the reliability, efficiency and performance of any system by depending on the requirement of any application. In this article, a microstrip band pass filter is designed based on stepped impedance resonators using microstrip feed lines at input and input ports. The proposed design of the filter covers the frequency range 28GHz to 35GHz which helps in fulfilling the requirements of 5G applications. The rectangular slots which are placed on two sides of microstrip lines are used to improve the stop band characteristics of a filter. By changing the slot width of the rectangular slots on two sides in the range from 0.25mm,0.45mm and 0.65mm the designed filter can resonate at triple band frequencies 33.02GHz, 32.72GHz and 31.00GHz with return loss -20.05dB,-20.51dB and -23.57dB and insertion loss -1.15dB,-1.01dB and -1.15dB provides good performance. The design of band pass filter is designed on polyamide substrate with thickness 0.15mm and surface area is 104.5mm2 .The optimization and simulation is done in HFSS software.
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