TY - GEN
T1 - Design of compact ka-band microstrip BPF using mode exciting technology
AU - Altaf, Amjad
AU - Chen, Xi
AU - Dilshad, Umar
AU - Miao, Jungang
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - In this work, a method to design a compact millimeter-wave microstrip bandpass filter (BPF) using the mode-exciting technology is proposed. The structure comprises of an open-circuited stub along with a pair of symmetrical parallel-coupled transmission lines. The filter can be configured to the desired frequency band by adjusting the relative impedances and electrical lengths of the stub and parallel coupled transmission lines. Moreover, with the combination of high-impedance coupled microstrip lines, tapped on the Input-Output (I/O) ports, additional modes were excited to adjust the two transmission zeroes and to provide a bandpass response in the millimeter-wave band. Using this method, a couple of BPF structures with center frequencies of 34 GHz and 40 GHz having fractional bandwidths of 17.6 & 15.0% respectively are developed on Rogers's 5880 10-mil substrate and tested to validate the design process. Insertion losses of these filters are measured as 2.3 ± 0.4 dBm and 2.35 ± 0.36 dBm respectively. The sizes of core structures of filters are 1.26 × 3.12 mm and 1.17 × 2.76 mm respectively while extended transmission lines were connected to fit the circuit in mechanical housing with dimensions of 13.8 × 7.6 mm. Measured parameters of physical circuits are in close agreement with simulation results.
AB - In this work, a method to design a compact millimeter-wave microstrip bandpass filter (BPF) using the mode-exciting technology is proposed. The structure comprises of an open-circuited stub along with a pair of symmetrical parallel-coupled transmission lines. The filter can be configured to the desired frequency band by adjusting the relative impedances and electrical lengths of the stub and parallel coupled transmission lines. Moreover, with the combination of high-impedance coupled microstrip lines, tapped on the Input-Output (I/O) ports, additional modes were excited to adjust the two transmission zeroes and to provide a bandpass response in the millimeter-wave band. Using this method, a couple of BPF structures with center frequencies of 34 GHz and 40 GHz having fractional bandwidths of 17.6 & 15.0% respectively are developed on Rogers's 5880 10-mil substrate and tested to validate the design process. Insertion losses of these filters are measured as 2.3 ± 0.4 dBm and 2.35 ± 0.36 dBm respectively. The sizes of core structures of filters are 1.26 × 3.12 mm and 1.17 × 2.76 mm respectively while extended transmission lines were connected to fit the circuit in mechanical housing with dimensions of 13.8 × 7.6 mm. Measured parameters of physical circuits are in close agreement with simulation results.
UR - https://www.scopus.com/pages/publications/85082458523
U2 - 10.1109/PIERS-Fall48861.2019.9021501
DO - 10.1109/PIERS-Fall48861.2019.9021501
M3 - 会议稿件
AN - SCOPUS:85082458523
T3 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
SP - 3262
EP - 3266
BT - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019
Y2 - 17 December 2019 through 20 December 2019
ER -