TY - JOUR AU - Mazlan, Mohammad Hanif AU - Ahmad, Badrul Hisham AU - Husain, Mohd Nor AU - Zakaria, Zahriladha AU - Shairi, Noor Azwan AU - Zahari, Mohd Khairy AU - Hassan, Nornikman PY - 2017/06/01 Y2 - 2024/03/28 TI - Design and Analysis of SIW Bandstop Filters for Interference Suppression in X Band JF - Journal of Telecommunication, Electronic and Computer Engineering (JTEC) JA - JTEC VL - 9 IS - 2-5 SE - Articles DO - UR - https://jtec.utem.edu.my/jtec/article/view/2382 SP - 1-5 AB - In this paper, six different bandstop filter designs using Substrate Integrated Waveguide (SIW) resonator coupled to microstrip transmission line is presented. A curved and rectangular SIW resonator was designed and then coupled to microstrip transmission line to provide a band reject response in Advanced Design System Momentum RF software. These filters were designed for interference suppression in X-band and simulated on Rogers RO4350 substrate with thickness of 0.508 mm and relative dielectric constant of 3.48. The simulated result was compared with other bandstop filter at X-band and showed a good suppression at 9 GHz region with attenuation of -61.9 dB and -3 dB bandwidth of 90 MHz. ER -