Design of SIW based Frequency Reconfigurable Antenna for K/Ku band applications

A frequency reconfigurable antenna based on substrate integrated waveguide (SIW) technology is proposed in this paper for K/Ku band applications. In most of the previous structures terminal SIW was used but here structure, as well blind vias being implanted to achieve maximum reconfigurability and better efficiency miniature antenna. The parameters are analysed thoroughly without diode with diode. According measurements, suggested has an impedance bandwidth 12 12.8 GHz off condition addition from 22 22.8 ON a peak gain 7.5 dB. radiation work 90%.