A compact and selective low-pass filter with reduced spurious responses, based on CPW tapered periodic structures
In: IEEE transactions on microwave theory and techniques, Jg. 54 (2006), Heft 6, S. 2367-2375
Online
academicJournal
- print, 22 ref 1
Zugriff:
This paper describes a new low-pass filter topology based on tapered periodic structures. These filters exhibit interesting characteristics in terms of compactness, return loss, insertion loss, selectivity, and the suppression of spurious frequency bands. Hybrid prototypes with a 1-GHz cutoff frequency, based on a coplanar-waveguide technology, and using both low-cost and high-performance substrates, have been fabricated and measured. Spurious frequency bands can be suppressed to below -22 dB at frequencies up to 20 GHz. Passband ripples are negligible, and the return loss is better than 20 dB. A two-section filter has a length of 0.2 A and exhibits a -120-dB/dec selectivity, while a six-section filter is 0.51 A long and has a -560-dB/dec selectivity. A design procedure has been established. These filters are compatible with monolithic microwave integrated circuit technologies in which the capacitors can be realized as metal-insulator-metal structures.
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A compact and selective low-pass filter with reduced spurious responses, based on CPW tapered periodic structures
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Autor/in / Beteiligte Person: | KADDOUR, Darine ; PISTONO, Emmanuel ; DUCHAMP, Jean-Marc ; ARNOULD, Jean-Daniel ; EUSEBE, Hervé ; FERRARI, Philippe ; HARRISON, Robert G |
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Zeitschrift: | IEEE transactions on microwave theory and techniques, Jg. 54 (2006), Heft 6, S. 2367-2375 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2006 |
Medientyp: | academicJournal |
Umfang: | print, 22 ref 1 |
ISSN: | 0018-9480 (print) |
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