Abstract
A novel ultrawideband (UWB) bandpass filter (BPF) is proposed and designed using a multimode resonator (MMR) that is modified from a conventional trisection stepped-impedance resonator (TSSIR). With the first five resonant modes of the TSSlR and the coupling peaks of the input/output interdigital parallel-coupled lines properly located in the UWB passband, a seven-transmission-pole UWB BPF was realized. Open stubs were embedded in the MMR to produce a transmission zero for improving the upper-stopband rejection. A prototype of the proposed UWB BPF has been fabricated and measured for performance verification. Besides a measured return loss of higher than 11 dB between the lowest and highest transmission poles, the measured results show a minimum insertion loss of 0.3 dB and a group delay variation of less than 0.07 ns in the UWB passband.
| Original language | English |
|---|---|
| Pages (from-to) | 2904-2907 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 50 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2008 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Novel UWB BPF design using modified trisection MMR. / Chen, Lian Yu; Lee, Ching-Her; Hsu, Chung I.G.
In: Microwave and Optical Technology Letters, Vol. 50, No. 11, 01.11.2008, p. 2904-2907.Research output: Contribution to journal › Article
TY - JOUR
T1 - Novel UWB BPF design using modified trisection MMR
AU - Chen, Lian Yu
AU - Lee, Ching-Her
AU - Hsu, Chung I.G.
PY - 2008/11/1
Y1 - 2008/11/1
N2 - A novel ultrawideband (UWB) bandpass filter (BPF) is proposed and designed using a multimode resonator (MMR) that is modified from a conventional trisection stepped-impedance resonator (TSSIR). With the first five resonant modes of the TSSlR and the coupling peaks of the input/output interdigital parallel-coupled lines properly located in the UWB passband, a seven-transmission-pole UWB BPF was realized. Open stubs were embedded in the MMR to produce a transmission zero for improving the upper-stopband rejection. A prototype of the proposed UWB BPF has been fabricated and measured for performance verification. Besides a measured return loss of higher than 11 dB between the lowest and highest transmission poles, the measured results show a minimum insertion loss of 0.3 dB and a group delay variation of less than 0.07 ns in the UWB passband.
AB - A novel ultrawideband (UWB) bandpass filter (BPF) is proposed and designed using a multimode resonator (MMR) that is modified from a conventional trisection stepped-impedance resonator (TSSIR). With the first five resonant modes of the TSSlR and the coupling peaks of the input/output interdigital parallel-coupled lines properly located in the UWB passband, a seven-transmission-pole UWB BPF was realized. Open stubs were embedded in the MMR to produce a transmission zero for improving the upper-stopband rejection. A prototype of the proposed UWB BPF has been fabricated and measured for performance verification. Besides a measured return loss of higher than 11 dB between the lowest and highest transmission poles, the measured results show a minimum insertion loss of 0.3 dB and a group delay variation of less than 0.07 ns in the UWB passband.
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U2 - 10.1002/mop.23860
DO - 10.1002/mop.23860
M3 - Article
AN - SCOPUS:53349099666
VL - 50
SP - 2904
EP - 2907
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 11
ER -