Design of an Antenna System in Wireless Communication Applications (2.45GHz ISM Band) by Applying FDSC Model

Abstract

Abstract-The dynamic permittivity of microstrip structure deduced by adopting the Cole-Cole diagram results in a modified smith-chart representation (FDSC) that takes into the account the frequency-dependent influence of the fringing field and lossy characteristics of the line cohesively. This research illustrates microstrip patch antenna system for wireless communications applications that operates on 2.45 MHz ISM band. The impedance matching is a part of the design process to maximize power in the antenna system. This model proposed in this research is compatible with computer aided design system (CAD) and hence, fast and easy for implementation.Index Terms-Antenna design, computer aided design (CAD), frequency dependent smith chart (FDSC), impedance matching, microstrip.

A Low-frequency Compact Lightweight Dual-polarization CATR Feed Antenna

“…The large axial distance of low-frequency feed antennas is not conducive to practical assembly and usage, posing significant challenges for indoor testing. Therefore, reducing the electrical size of the feed source using a special antenna structure while maintaining antenna performance is a key focus of this research [5][6][7]. In [8], an array of dual-polarization Vivaldi antenna elements was used with multi-feed excitation to compress the axial length to 0.3m.…”