TY - JFULL AU - Yu-Fu Chen and Zih-Jyun Dai and Chen-Te Chiu and Shiue-Chen Chiou and Yung-Wei Chen and Yu-Ming Lin and Kuan-Yu Chen and Hung-Wei Wu and Hsin-Ying Lee and Yan-Kuin Su and Shoou-Jinn Chang PY - 2016/5/ TI - Compact Dual-Band Bandpass Filter Based on Quarter Wavelength Stepped Impedance Resonators T2 - International Journal of Electrical and Computer Engineering SP - 516 EP - 520 VL - 10 SN - 1307-6892 UR - https://publications.waset.org/pdf/10004208 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 112, 2016 N2 - This paper presents a compact dual-band bandpass filter that involves using the quarter wavelength stepped impedance resonators (SIRs) for achieving simultaneously compact circuit size and good dual-band performance. The filter is designed at 2.4 / 3.5 GHz and constructed by two pairs of quarter wavelength SIRs and source-load lines. By properly tuning the impedance ratio, length ratio and radius of via hole of the SIRs, dual-passbands performance can be easily determined. To improve the passband selectivity, the use of source-load lines is to increase coupling energy between the resonators. The filter is showing simple configuration, effective design method and small circuit size. The measured results are in good agreement with the simulation results. ER -