Analysis of C-shape Slotted MSPA for 5G Sub Band Applications on Three Different Substrates

— A comparative analysis of a compact planar Square patch Microstrip Multiband antenna on three different substrates is proposed. The proposed design has a C-shaped slot etched on the square radiating part and the antenna is energized using microstrip feed line. RT Duroid ( 𝜺 𝒓 = 𝟐.𝟐) , Taconic ( 𝜺 𝒓 = 𝟑. 𝟐 ) and FR4 ( 𝜺 𝒓 = 𝟒. 𝟒 ) substrates are used for simulation analysis. The flow of current is modified by the C-shaped slot making the antenna to resonate at 3/4 and 6 bands for RT Duroid/Taconic and FR4 substrates respectively suitable for 5G sub GHz applications. The antenna has a compact dimension of 𝟑𝟐 × 𝟑𝟐 × 𝟏. 𝟔𝒎𝒎 𝟑 and exhibits a return loss, S 11 of less than -10dB for all the resonating frequencies for all three substrates. The analysis has been done by considering the S 11 (Return loss <-10 dB), Directivity, Antenna Gain, VSWR and surface current distribution. Table II provides the comparison of parameters for different substrate material.