Reduced-length uniplanar bandpass filters based on coplanar-waveguide-slotline tees
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
This paper presents the design and implementation of multimodal uniplanar bandpass filters which use loaded coplanar-waveguide-slotline tees in the slotline resonators to reduce the filter length. The tees are theoretically analyzed to obtain a multimodal model, and applied to the design of two second-order bandpass filters at 1.5 GHz, one with reduced length and the second with compact dimensions (0.16¿ × 0.069¿). The filter measurements validate the theory, exhibiting an insertion loss of 1.55 dB (reduced-length filter) and 2.6 dB (compact filter) with a 8% bandwidth.
CitationContreras, A., Pradell, L., Ribó, M., Blondy, P. Reduced-length uniplanar bandpass filters based on coplanar-waveguide-slotline tees. A: European Microwave Conference. "2015 45th European Microwave Conference: proceedings: 7-10 September 2015: Paris, France". Paris: Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 546-549.