Synthesis of a Multiband Microstrip Patch Antenna for 5G Wireless Communications

Abstract

This paper presents a multiband microstrip patch antenna for future 5G Millimeter Wave (mm-wave) wireless technologies. The synthesized antenna is designed to be based on the genetic algorithm (GA) optimization tool in the high frequency simulation software (HFSS). The optimized dimensions of the engineered antenna are 24 × 24 × 0.203 mm3, comprising of a ground plane. The antenna design simulated results have been implemented via (HFSS) and microwave studio (CST) tools. The proposed antenna structure is engineered using Rogers RT-Duroid 4003 substrate as a dielectric medium. The Conformist rectangular and circular patches are modified to get multiband operation in the mm-wave band 25–32 besides 40–60 GHz frequency ranges. The input reflection coefficient ($${\mathrm{S}}_{11}$$ S 11 ) simulation results were compared with the measurements to check the validity of the design. The fabricated antenna radiation efficiency and gain values are also measured over the desired bandwidths. The measured gain and radiation efficiency values reached up to 9.75 dBi, 0.85%, and 10.75 dBi, 0.84%, for both bandwidths, respectively.

Engineering planar antenna using geometry arrangements for wireless communications and satellite applications

“…To avoid the higher order modes operation and approve the 50Ω microstrip line matching impedance, the metallic T.L. cut-off frequency will be given by 26 . …”

“…The accurate selection of the substrate's width to obtain a 50 Ω microstrip line and keep the minimum loss in microstrip line feed is ( = 9) mm 26 . The reflection of the arriving wave is lessened according to the impedance matching methodology, therefore, a microstrip feedline with optimized dimensions Wo and mm 2 is loaded on a similar substrate for appropriate excitation.…”

“…The reflection of the arriving wave is lessened according to the impedance matching methodology, therefore, a microstrip feedline with optimized dimensions Wo and mm 2 is loaded on a similar substrate for appropriate excitation. Accordingly, the appointed substrate parameters realize up to 16 GHz operating frequencies without the higher-order modes of operation 26 . The patch impedance is finally designed by using the following Eq.…”

“…While the effect of the DGS rectangular-shaped patch dimensions is producing many features such as increasing the impedance bandwidth, operating frequency shifting, and suppressing the surface wave using the antenna parametric study 27 . It has been observed in CST Microwave Studio through testing the variation in antenna characteristics due to different parameters mentioned 26 in Table 1 . S11 simulation results are then considered through the input reflection coefficient, that relates the antenna absorption measures of the feed power over the total power.…”