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Development of LPFG-Based Seawater Concentration Monitoring Sensors Packaged by BFRP. [PDF]
Micromachines (Basel)Zhang Z, Qin T, Bao Y, He J.
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Tunable bandpass filters with constant absolute bandwidth cascaded trisection topology
Journal of Electromagnetic Waves and Applications, 2021A novel cascade trisection (CT) coupling structure, based on half-wavelength resonators, is proposed for designing constant absolute bandwidth (CABW) tunable bandpass filters.
JingJing Yang +4 more
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Tunable Diplexer With Identical Passband and Constant Absolute Bandwidth
IEEE Transactions on Microwave Theory and Techniques, 2020Frequency-adaptive bandpass diplexer (FA-BPD) with constant absolute bandwidths (ABWs) and two identical passbands at every state is the most useful duplexing tunable filter for the smart frequency-division duplex (FDD) system. However, it is widely considered a challenge.
Zhiyou Li, Xiaohong Tang, Di Lu, Ming Yu
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Tunable bandpass filters with constant absolute bandwidth
Proceedings of the 9th International Symposium on Antennas, Propagation and EM Theory, 2010This paper presents the design of novel tunable bandpass filters with constant absolute bandwidth. A novel mixed electric and magnetic coupling scheme is utilized. Theoretical analysis indicates that it is able to achieve desired coupling coefficients between the proposed resonators at various frequencies so as to obtain constant absolute bandwidth ...
null Hong-Lin Zhang +2 more
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A Tunable Bandpass Filter with Constant Absolute Bandwidth
Journal of Electromagnetic Waves and Applications, 2011A novel tunable bandpass filter with constant absolute bandwidth is presented in this paper. Introducing a mixed electric and magnetic coupling structure and a new external coupling scheme, nearly constant absolute bandwidth is maintained across the tuning range. Theoretical analysis and design approach are demonstrated. The proposed filter is designed
B. Liu, F. Wei, Q. Y. Wu, X. W. Shi
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Constant absolute bandwidth UHF tunable filter using RF MEMS
2012 42nd European Microwave Conference, 2012This paper presents the design and the performances of a tunable UHF filter that uses MEMS capacitors arrays. Central frequency of the filter varies from 278 to 385 MHz and can be adjusted by actuating a desired number of MEMS. Thanks to a specific topology and well-chosen input and output tank circuits, the absolute bandwidth varies from 13 to 14 MHz ...
G. Nicolini +7 more
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A Compact Tunable Dielectric Filter with Constant Absolute Bandwidth
2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2018This paper presents a compact tunable filter, consisting of two coaxial dielectric resonators and a pair of parallel-coupled microstrip lines. Coaxial dielectric resonators are directly coupled to each other through the aperture on the side surface of the resonators. The aperture provides magnetic coupling, the parallel-coupled microstrip lines produce
Liangzu Cao, Junmei Yan, Lixia Yin
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