Publication

Abstract : In this paper, a circularly polarized on-chip antenna has been proposed for system on chip (SoC) applications at ISM 2.45 GHz band. The low resistive and high permittivity silicon (Si) wafer ( ρ=10 Ω.cm and εr=11.9 ) with standard 0.18μm CMOS technology has been considered for the design of on-chip antenna. The proposed slotted on-chip antenna (OCA) has the miniaturized dimension of the 30×25×0.3795 mm3 . The introduction of asymmetry in slot of OCA results enhancement of the directive gain of +4.65 dB and also provide the circular polarization (CP). The 10 dB bandwidth i.e. FBW (Fractional bandwidth) of the proposed antenna is 62.8%. The proposed antenna also shows very good axial ratio (AR) bandwidth of 12.98% from 2.31-2.51 GHz range. All the simulation results have been depicted and explained in various sections of the paper.