Wideband Aperture-Coupled Stack-Patch Antenna Design with Characteristic Mode Analysis

Abstract

These days’ RF devices, communication frequencies, and technology is advancing towards a higher frequency spectrum with wide bandwidth for higher data rate, miniaturization and portability. For high frequency and wide bandwidth a low loss, efficient and compact wideband microstrip antenna development with convenient analysis is crucial. In this paper, we developed a wide band highly efficient stack patch antenna for Ku-band and analyze the model with characteristics mode analysis. The developed antenna has -10dB impedance bandwidth from 13.1-15.2GHz and -30dB bandwidth from 14- 14.5GHz. Higher impedance matching leads to higher efficiency and high gain for the target center frequency of 14.25GHz.