A Compact Wideband Circularly-Polarized Conformal Load-Bearing Microstrip Antenna Array

Abstract

This paper presents a compact wideband circularly-polarized conformal load-bearing microstrip antenna array. The conformal load-bearing antenna structure is an organic honeycomb sandwich structure. When the antenna is embedded in honeycomb sandwich structure, conformal load-bearing antenna is formed. The conformal load-bearing microstrip antenna array has eight layers. Its dimension is 130mm×90mm×11.8mm. Electromagnetic performance of the antenna array is simulated in CST Microwave Studio.The antenna array has simulated -10dB impedance bandwidth of 2.24GHz(19.25-21.49GHz). The 3-dB axial ratio bandwidth of the antenna array is 2.24GHz(19.06-21.3GHz). The gains and patterns of the antenna array are stable in the operating band. The antenna array also has an excellent mechanical performance.