Results 291 to 300 of about 95,680 (349)
Surface Acoustic Wave Bandpass Filter Synthesis and Design
, 1975 M. El-Diwany
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Bandpass Filter Inspired Filtering Patch Antenna
2021 IEEE MTT-S International Wireless Symposium (IWS), 2021A planar filtering patch antenna inspired by BPF (bandpass filter) prototype is proposed in this paper. The antenna has a very simple structure, while realizing multifunctional operation, including directional radiation and filtering functions. The principle of replacing the LC resonator of BPF prototype with a patch resonator is illustrated. The newly
Shuosheng Ji, Yuandan Dong
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IEEE Journal of Solid-State Circuits, 1970
The technique of designing inductorless filters by replacing the inductors in conventional LC filters with gyrators and capacitors is considered for the special case of the high-quality channel bandpass filters used in multiplex telephony. One particular gyrator circuit, which has been found to be very satisfactory, using two operational amplifiers and
H.J. Orchard, D.F. Sheahan
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The technique of designing inductorless filters by replacing the inductors in conventional LC filters with gyrators and capacitors is considered for the special case of the high-quality channel bandpass filters used in multiplex telephony. One particular gyrator circuit, which has been found to be very satisfactory, using two operational amplifiers and
H.J. Orchard, D.F. Sheahan
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Photosensitive Bandpass Filters
Optical Interference Coatings, 2007First experimental demonstrations of the concept of photosensitive filters are reported. Possible application to the manufacturing of non absorbing apodizing filters is discussed.
Weidong Shen +3 more
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Bandpass filters: theory and experiment
Applied Optics, 1983On a montre que des mailles inductives avec des ouvertures de forme cruciforme peuvent etre de bons filtres passe-bande dans l'infrarouge ...
R C, Compton, R C, McPhedran
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Far-infrared dichroic bandpass filters
Applied Optics, 1985Filters which serve as dichroic beam dividers are useful for certain types of far-infrared photometer. We have used inductive cross metal mesh as reflective coatings on solid dielectric Fabry-Perot etalons to produce dichroic filters with quality factors in the range 3 < Q < 10.
D D, Nolte, A E, Lange, P L, Richards
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Bandpass filtering in barium titanate
Applied Optics, 1988Real-time spatial filteirng is performed in BaTiO(3) using two different holographic geometries. In both geometries white light images of moderate intensity are used to filter selected portions of Fourier transform holograms written in the crystal. The result is a suppression of certain spatial frequencies in the reconstructed images.
L, Pugliese, G M, Morris
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Microstrip dual-bandpass filter design
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017Dual-bandpass microstrip filter design is suggested for small-scale device. Design of dual-bandpass microstrip filter has been created with concentric square structure by using microstrip resonator. Both of resonators have been used to get dual-bandpass frequencies and fed with only one source.
Eren, Bora +5 more
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Divergence-tolerant resonant bandpass filters
Optics Letters, 2016Bandpass filters based on subwavelength dielectric gratings are grounded in physical principles that are totally distinct from their thin-film counterparts. Ease in fabrication, design scalability, material sparsity, and on-chip integration compatibility makes them a promising alternative especially for long-wavelength applications. Here we demonstrate
Yeong Hwan, Ko +2 more
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2019
In this chapter, a new coupled line balun topology is presented by analyzing the standing wave pattern around the open-circuited half-wavelength transmission line. Then, a class of planar-type balun bandpass filters with single-/dual-band and wideband responses is introduced based on this balun topology.
null Jianpeng Wang +2 more
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In this chapter, a new coupled line balun topology is presented by analyzing the standing wave pattern around the open-circuited half-wavelength transmission line. Then, a class of planar-type balun bandpass filters with single-/dual-band and wideband responses is introduced based on this balun topology.
null Jianpeng Wang +2 more
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