V-band Substrate Integrated Waveguide Cavity Backed Slot Antenna for Millimeter-wave Wireless Applications

摘要

In this paper, A substrate integrated waveguide (SIW) cavity backed slot antenna for broad-band and millimeterwave wireless communication applications, shape of the slot is flower inserted on top of the substrate and feed used is microstrip. The antenna is printed by RT-Duriod 5880 substrate with relative permittivity of 2.2, thickness is 0.381mm and size is 15mm x 10.7mm. The antenna is simulated, fabricated and tested the results using a vector network analyzer (VNA). The measured impedance bandwidth is 5.4GHz (58.6GHz to 64GHz) with two resonant frequencies are 59.7GHZ, 63.36GHz and good radiation patterns are observed at resonant frequencies. The equivalent circuit model is introduced to match the proposed antenna reflection coefficient, VSWR and matrix laboratory (MATLAB) is used to analyze the response of the circuit and also introduced mathematical equations for far field patterns.