TY - JOUR
T1 - A miniaturized dual-band bandpass filter using embedded resonators
AU - Hsu, Cheng Ying
AU - Chen, Chu Yu
AU - Chuang, Huey Ru
PY - 2011/12/1
Y1 - 2011/12/1
N2 - A compact microstrip dual-band bandpass filter (BPF) using the embedded open-loop ring resonator is proposed. The filter can achieve two passbands without using the external dual-band impedance transformer in the input/output feeding line. Furthermore, by using the developed design method, the ratio of the first passband to the second passband can be controlled. A compact microstrip dual-band BPF operated at 2.45/5.7 GHz is demonstrated. The designed filter has low insertion loss, high rejection between the two passbands, and a very small size of 11.5 × 4.65 $ mm 2 (0.094λ 0 × 0.039 λ 0), λ 0 being the free-space wavelength of the center operating frequency of the 2.45 GHz. The good agreement between simulation and measurement is obtained.
AB - A compact microstrip dual-band bandpass filter (BPF) using the embedded open-loop ring resonator is proposed. The filter can achieve two passbands without using the external dual-band impedance transformer in the input/output feeding line. Furthermore, by using the developed design method, the ratio of the first passband to the second passband can be controlled. A compact microstrip dual-band BPF operated at 2.45/5.7 GHz is demonstrated. The designed filter has low insertion loss, high rejection between the two passbands, and a very small size of 11.5 × 4.65 $ mm 2 (0.094λ 0 × 0.039 λ 0), λ 0 being the free-space wavelength of the center operating frequency of the 2.45 GHz. The good agreement between simulation and measurement is obtained.
UR - http://www.scopus.com/inward/record.url?scp=83555160845&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=83555160845&partnerID=8YFLogxK
U2 - 10.1109/LMWC.2011.2172592
DO - 10.1109/LMWC.2011.2172592
M3 - Article
AN - SCOPUS:83555160845
VL - 21
SP - 658
EP - 660
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
SN - 1531-1309
IS - 12
M1 - 6074966
ER -