Filtering Power Divider using Pseudo Interdigital Based on Substrate Integrated Waveguide

The development of the Surveillance Radar system leads to the demand of RF front-end systems to be compact, lightweight and low cost. This paper demonstrated of Filtering Power Divider (FPD) using pseudo Interdigital Resonator with the addition of Substrate Integrated Waveguide (SIW) for Radio Frequency (RF) X-band applications. The design was simulated using simulation software ADS 2011.11 to see the effect width separated between the resonators and see the effect of adding SIW to the resonator. The FPD was designed using an RT Duroid 5880 substrate with dielectric constant 2.2 and a total thickness of 0.8 mm. In order by change in width separated increases gradually followed by a bandwidth filter response lead a narrowband. Performance of proposed FPD is comparing the results of response filter presented are resonator without SIW, resonator with both of single SIW and double SIW.