Design of Meander Line and Antipodal Vivaldi Inspired Antennas for 5G FR II Bands

Abstract

The requirement for bandwidth and high gain coverage in wireless standards into 5G sys- newlinetems is developing as the traffic rate on the current 4G/4G-LTE generation mobile network newlinecontinues to increase at an rapid pace. The aerial plays a crucial part in having reliable, low- newlineinterference communication. Therefore, the development of future wireless communication newlinesystems must study compact 5G antennas and arrays that can operate in the 5G frequency newlinerange-I (FR-I) and millimeter wave frequency bands. This dissertation examines new wide- newlineband antenna designs for 5G systems, focusing on those employing the planar microstrip patch newlineantenna fed by meander line antenna (MLA), defective ground structure(DGS), antipodal vi- newlinevaldi (AV), and a quarter wave transformer (QWT). newlineAt first, the planar meander-based microstrip feed structure variants are constructed and newlineoptimized via microstrip line, taper, and QWT feed approaches to acquire wideband. Then, newlinethe mathematical formulas of meander lines are factored into the construction of an ultra- wideband antenna. By comparing the measured and prototype radiation patterns, verified that 5G FR2 mm-wave is capable of working at the desired frequencies. newlineFurther, it is recommended that a neutralization line (NL) and defective ground struc- ture employing antipodal vivaldi slots (AVS) be incorporated into the patch feed to enhance impedance and the bottom of the antenna element to reduce cross-polarization, respectively.To emphasize the orthogonality of cross-polarization, particularly in single-element and array-element setups, the DGS with AVS approaches is used. newlineAt the extremely most, a novel series feed array arrangement is developed to improve newlinegain for 5G mobile terminals of 3.867and#955;g × 3.867and#955;g × 0.052and#955;g size, and the suggested 4- newlineelement antenna array is a relatively substantial investment. The antenna array arrangement was tested across a range of frequencies of 27.2 GHz to 30 GHz, and its bandwidth was found to be 9%. Presented and discussed the findings of in-depth evaluations