Coupling behaviors of quarter-wavelength impedance transformers for wideband CPW bandpass filters
In: IEEE microwave and wireless components letters, Jg. 15 (2005), Heft 1, S. 13-15
Online
academicJournal
- print, 8 ref
Zugriff:
Quarter-wavelength coplanar waveguide (λ/4-CPW) impedance transformers with low and high characteristic impedance are characterized via fullwave method of moments short-open calibration (MoM-SOC) approach and further utilized as alternative K- and J-inverter networks with enhanced coupling. Network parameters are obtained and compared with those of two traditional lumped-CPW elements, demonstrating tightened coupling behaviors. The two improved A/4 CPW bandpass filters are then constructed and their performances are optimized via cascaded topology. Predicted results show us a few attractive features, i.e., wide passband and first-order harmonic suppression as confirmed by experiment.
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Coupling behaviors of quarter-wavelength impedance transformers for wideband CPW bandpass filters
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Autor/in / Beteiligte Person: | LEI, ZHU ; HUAMIN, SHI ; MENZEL, Wolfgang |
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Zeitschrift: | IEEE microwave and wireless components letters, Jg. 15 (2005), Heft 1, S. 13-15 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2005 |
Medientyp: | academicJournal |
Umfang: | print, 8 ref |
ISSN: | 1531-1309 (print) |
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