Pada tugas akhir yang telah diusulkan yaitu dual-band bandpass filter. Bandpass filter ini berbasis triple-mode stub-loaded resonator dan outer-folding open-loop resonator dengan selektifitas tinggi. Triple-mode stub-loaded resonator yang diusulkan, dengan dua folded shape open-stub identik terletak disisi simetris jalur microstrip, digunakan untuk menghasilkan upper band, sementara outer-folding open-loop resonator dimanfaatkan untuk membentuk lower passband. Dua resonator adalah kontrol independen passband, frekuensi, dan bandwidth. Spesifikasi substrat yang digunakan yaitu Taconic RF -35 yang mempunyai ï�¥r = 3,5 dan ketebalan 1,542 mm. Dilakukan simulasi pada software AWR 2009 dan pengukuran bandpass filter dilakukan menggunakan Network Analyzer. Filter ini didesain dengan nilai insertion loss ≤2 pada passband dengan bandwidth 100 dan 200 MHz. Hasil pengukuran menunjukkan bahwa dua frekuensi tengah terjadi pada 2,292 dan 4,519 GHz untuk aplikasi WiMAX dan WLAN dengan lebar bandwidth 390 dan 738 MHz dengan insertion loss 1,71 dB dan 0,28 dB. Kata Kunci: Triple-mode resonator, Analisis Mode Ganjil-Genap, Bandpass filter, Dual-band, Open-loop resonator, Stub-loaded resonator. WiMAX, WLAN.

The final project that has been proposed is a dual band bandpass filter. This bandpass filters are triple-mode based stub-loaded resonators and outer-folding open-loop resonators with high selectivity. The proposed triple-mode based stub-loaded resonators, with two identical open-stub folded shapes located on the symmetrical side of the microstrip line, is used to produce the upper band, while outer-folding open-loop resonators is used to form the lower passband. Two resonators are independent control of passband, frequency, and bandwidth. The substrate specifications used are Taconic RF - 35 which has ï�¥r = 3.5 and a thickness of 1.542 mm. The simulation is performed through software if AWR 2009 and measurement of bandpass filter done by Network Analyzer. The filter was designed with a mark of insertion loss ≤ 2 at passband and bandwidth 100 dan 200 MHz. Measurement results show that two central frequencies occur at 2.292 and 4.519 GHz for WiMAX and WLAN applications with bandwidth widths of 390 and 738 MHz with low insertion loss of 1.71 dB and 0.28 dB. Keywords: Triple-mode Resonator, Band pass filter, Dual-band, Even-odd-mode analysis, Open-loop resonator, Stub-loaded resonator, WiMAX, WLAN.

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