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A Microstrip Ultra-Wideband Bandpass Filter With Cascaded Broadband Bandpass and Bandstop Filters
IEEE Transactions on Microwave Theory and Techniques, 2007This paper develops a novel ultra-wideband bandpass filter by cascading a broadband bandpass filter with another broadband bandstop filter. Properly selected impedances of transmission lines achieve broadband bandpass and bandstop filters and make independent designs possible.
Ching-Wen Tang, Ming-Guang Chen
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Tunable reflectionless microstrip bandpass filters
2018 IEEE Radio and Wireless Symposium (RWS), 2018A class of frequency-reconfigurable reflectionless microstrip bandpass filters is reported. This RF/microwave device is based on a complementary-duplexer architecture made up of a bandpass-type and a bandstop-type channel with resistive termination. Whereas the bandpass channel defines the transmission profile of the overall filter, the input-signal ...
Dimitra Psychogiou +1 more
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A novel microstrip bandpass filter
Microwave and Optical Technology Letters, 2004AbstractA novel compact microstrip bandpass filter which is realized by combining new slow‐wave effect with dual‐parallel coupling, is proposed. The filter is not only compact in size, but also has low insertion loss and sharp rejection. A demonstration filter is optimally designed and fabricated.
Chen Jianxin +3 more
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Microstrip Dual-narrowband Bandpass Filter with Independent Passbands
Wireless Personal Communications, 2021In this article, a novel compact microstrip dual-narrowband bandpass filter (DNBPF) is presented with wide and high rejection levels in the stopbands. The location of each passband is independently controllable/tunable/selectable. The filter structure is made up of three-coupled-asymmetrical transmission lines, open-ended stubs and direct-transmission ...
Masoud Najafi, Ali Reza Hazeri
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Polyester‐based wearable bandpass microstrip filter
Microwave and Optical Technology Letters, 2023AbstractIn this research paper, a polyester‐based bandpass microstrip filer is proposed. Split ring resonator, stepped‐impedance resonator structure, and coupled microstrip lines are used to design the proposed filter circuit in the pass band of 4.35 to 4.60 GHz for NATO frequency band military applications.
Jayant G. Joshi +2 more
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Equivalent circuit for microstrip bandpass filter
2016 2nd International Conference on Wireless and Telematics (ICWT), 2016Filter is an electromagnetic device that is designed to select signals based on frequency response. Filter can be easily analyzed by the general theory of equivalent circuit which refers to a theoretical circuit that retains all of the electrical characteristics of a given circuit.
Bunga Dwi Wulandari, Achmad Munir
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Design of a Broadband Microstrip Bandpass Filter
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 2020In order to design a filter with good frequency selectivity and wide stopband, a notch H-Shaped DMS (defected microstrip structure) microstrip filter is applied. The DMS structure is cascaded with two $1/4 \lambda$ terminal short resonators. The filter is designed and analyzed by using HFSS.
Jinfeng Hu +4 more
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Microstrip compact bandpass filters
Microwave and Optical Technology Letters, 1991AbstractA simple but efficient synthesis method of microstrip bandpass filters using particularly compact resonators is proposed.
J.‐C. Roduit +2 more
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Multimode resonator microstrip bandpass filters
2017 IEEE 2nd International Conference on Automatic Control and Intelligent Systems (I2CACIS), 2017Multimode resonators are used to make compact bandpass filters. Although the design principles of these filters are quite different from classical filter synthesis, no major discussion of these filters has appeared as reviews or in books. This paper discusses some of the features and design procedures of these filters.
M. K. Haldar +2 more
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Tune-all microstrip bandpass filter
2015 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), 2015A compact, varactor-incorporated microstrip bandpass filter of controllable center frequency and bandwidth, as well as reconfigurable response is presented. The quasi-lumped dual-mode resonator is adopted for filter compactness, and the incorporated varactors are employed for resonance perturbation and mode coupling control pertinent to frequency ...
Siang-Rong Hsu +2 more
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