TY - JOUR
T1 - A compact bandpass filter with two tuning transmission zeros using a CMRC resonator
AU - Shum, Kam Man
AU - Mo, Ting Ting
AU - Xue, Quan
AU - Chan, Chi Hou
PY - 2005/3
Y1 - 2005/3
N2 - This paper presents a new compact, low-insertion loss, sharp-rejection, and narrow-band microstrip bandpass filter (BPF) using a compact microstrip resonant cell (CMRC) as the resonator. Experimental results show that the filter only has 1.3-and 1.5-dB insertion losses when using the symmetrical and asymmetrical CMRC resonators, respectively. The effect of varying the length of the resonator to the notch frequencies of the filter has been studied. Furthermore, due to the CMRC characteristic, the size of this filter is only 0.1λ9 by 0.29λ9. Based on the same design methodology, a mircostrip BPF with a coplanar-waveguide feed is also designed with an increased bandwidth. All the proposed filters have been verified by simulation and measurement with good agreement. These filters are attractive for hybrid microwave integrated circuit and monolithic-microwave integrated-circuit implementation. © 2005 IEEE.
AB - This paper presents a new compact, low-insertion loss, sharp-rejection, and narrow-band microstrip bandpass filter (BPF) using a compact microstrip resonant cell (CMRC) as the resonator. Experimental results show that the filter only has 1.3-and 1.5-dB insertion losses when using the symmetrical and asymmetrical CMRC resonators, respectively. The effect of varying the length of the resonator to the notch frequencies of the filter has been studied. Furthermore, due to the CMRC characteristic, the size of this filter is only 0.1λ9 by 0.29λ9. Based on the same design methodology, a mircostrip BPF with a coplanar-waveguide feed is also designed with an increased bandwidth. All the proposed filters have been verified by simulation and measurement with good agreement. These filters are attractive for hybrid microwave integrated circuit and monolithic-microwave integrated-circuit implementation. © 2005 IEEE.
KW - Bandpass filter (BPF)
KW - Compact microstrip resonating cell
KW - Coplanar waveguide (CPW)
KW - Microstrip filter
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U2 - 10.1109/TMTT.2004.842492
DO - 10.1109/TMTT.2004.842492
M3 - RGC 21 - Publication in refereed journal
SN - 0018-9480
VL - 53
SP - 895
EP - 899
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 3 I
ER -