TY - GEN
T1 - UWB bandpass filter with dual notched bands based on microstrip to CPW transition
AU - Oh, Sangyeol
AU - Shin, Beomsoo
AU - Lim, Jaehyuk
AU - Choi, Jongwon
AU - Lee, Seungjin
AU - Lee, Jaehoon
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/9
Y1 - 2015/6/9
N2 - In this paper, highly selective ultra-wideband bandpass filter with dual notched bands is proposed. The proposed filter was designed using microstrip to coplanar waveguide transition structure in order to increase the coupling bandwidth. Also, we used stepped impedance stub loaded resonators since the sharp skirt characteristics at lower and upper stop bands are required. In addition, dual notched bands are implemented by spur lines and U-shaped slot resonator for undesired signal interference avoidance (WLAN signals at 5.8 GHz, satellite communication signals at 8.0 GHz) The proposed filter has the measured return loss less than -10 dB in the passband and the bandwidth of passband of 2.32 GHz ∼ 10.68 GHz, and the group delay remained relatively flat and less than 0.5 ns in the passband except for the dual notched bands. The rejection center frequencies are 5.43 GHz and 8.07 GHz.
AB - In this paper, highly selective ultra-wideband bandpass filter with dual notched bands is proposed. The proposed filter was designed using microstrip to coplanar waveguide transition structure in order to increase the coupling bandwidth. Also, we used stepped impedance stub loaded resonators since the sharp skirt characteristics at lower and upper stop bands are required. In addition, dual notched bands are implemented by spur lines and U-shaped slot resonator for undesired signal interference avoidance (WLAN signals at 5.8 GHz, satellite communication signals at 8.0 GHz) The proposed filter has the measured return loss less than -10 dB in the passband and the bandwidth of passband of 2.32 GHz ∼ 10.68 GHz, and the group delay remained relatively flat and less than 0.5 ns in the passband except for the dual notched bands. The rejection center frequencies are 5.43 GHz and 8.07 GHz.
KW - Dual notched bands
KW - High selectivity
KW - Microstrip to CPW transition
KW - UWB bandpass filter
UR - http://www.scopus.com/inward/record.url?scp=84942693163&partnerID=8YFLogxK
U2 - 10.1109/WAMICON.2015.7120408
DO - 10.1109/WAMICON.2015.7120408
M3 - Conference contribution
AN - SCOPUS:84942693163
T3 - 2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015
BT - 2015 IEEE 16th Annual Wireless and Microwave Technology Conference, WAMICON 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 16th IEEE Annual Wireless and Microwave Technology Conference, WAMICON 2015
Y2 - 13 April 2015 through 15 April 2015
ER -