Performance Analysis of Different Slotted U , Half U , π and Half π Microstrip Patch Antennas for LTE Application

This paper presents different slotted structures such as U-slot, half U-slot, half π-slot and π-slot to achieve the dual band characteristics of the antenna etched on a glass epoxy substrate (εr= 4.3) is suspended over the ground plane with an air gap for all slotted structures [1-2]. A comparative analysis has been made for the U and half U, π and half π designs are proposed by reducing area to 50% and increasing the substrate thickness (air gap).It was found that performances of half U slot MSA and halfπ slot MSA are comparable to Uslot MSA and π Slot MSA respectively at the resonant frequencies 0.9 GHz and 1.1 GHz, which is desired for LTE band (0.73.5 GHz)application .The simulation analysis of all slotted antennas conclude that π slot has comparatively better performance in comparison to all.