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Content Provider | IET Digital Library |
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Author | Xu, Jin Zhu, Yan |
Abstract | This study presents a novel design approach of semi-lumped dual-wideband bandpass filters (DWB-BPF) and tri-wideband-BPF (TWB-BPF). One or two pairs of λ/4 uniform-impedance open stubs first generate the desired transmission zeros (TZs) to divide the lowpass frequency response based on radial stub loaded high-impedance microstrip line (RSHIML) into a dual- or tri-band lowpass-bandpass frequency response. Then, a pair of lumped-element capacitors are series to the input and output ports to suppress the direct current signal, so as to transform the lowpass passband to the bandpass passband. Moreover, the other RSHIML is also introduced not only to produce a TZ located at the lower transition band of the first passband to improve its passband selectivity, but also to enhance the passband flatness. As examples, a semi-lumped DWB-BPF and a semi-lumped TWB-BPF are designed and fabricated, which exhibit the merits of wide passbands, low insertion loss and compact size. |
Starting Page | 53 |
Ending Page | 58 |
Page Count | 6 |
ISSN | 17518725 |
Volume Number | 11 |
e-ISSN | 17518733 |
Issue Number | Issue 1, Jan (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/1 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0375 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2017-01-08 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Band-pass Filter Capacitor Compact Semilumped Dual-wideband Bandpass Filter Design Approach Direct Current Signal Suppression Dual-band Lowpass-bandpass Frequency Response DWB-BPF Filter And Other Network Frequency Response Low Insertion Loss Lowpass Frequency Response Lumped-element Capacitor Microstrip Line Passband Flatness Radial Stub Loaded High-impedance Microstrip Line RSHIML Transmission Zero Tri-band Lowpass-bandpass Frequency Response Tri-wideband Bandpass Filter Design Approach Waveguide And Microwave Transmission Line Λ/4 Uniform-impedance Open Stubs |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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