نتایج جستجو برای: wide bandpass

تعداد نتایج: 364710  

Journal: :Photonics Research 2023

We present octave-wide bandpass filters in the terahertz (THz) region based on bilayer-metamaterial (BLMM) structures. The passband has a super-Gaussian shape with maximum transmittance approaching 70% and typical stopband rejection of 20 dB. design is metasurface consisting metallic square-hole array deposited transparent polymer, which stacked top an identical subwavelength separation. superi...

Journal: :Progress In Electromagnetics Research C 2017

Journal: :IEEE Transactions on Microwave Theory and Techniques 2018

Journal: :Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia 2020

2010
Apirada Namsang Prayoot Akkaraekthalin

In this decade, compact bandpass filters are essential components in microwave systems for passing desired signals and suppressing unwanted signals. Microstrip bandpass filter is rapidly going up in the design and fabrication in RF front-ends of wireless communication systems. The microstrip structure is well-known because of its light weight and simple design method. As knowing, the bandpass f...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده مهندسی برق و الکترونیک 1393

a novel ultra wideband microstrip bandpass filter using radial stub loaded resonator and interdigital coupled lines is presented in this paper. the radial stub loaded resonator and decagonal patch form a resonator named m to create tuneable multiple notches in the passband for suppression wlan interference. to realize sharp roll-off, two adjustable transmission nulls are located at the lower an...

Journal: :IEEE Microwave and Wireless Components Letters 2014

2016
Manuel A. Quijada Laurie Seide Bert A. Pasquale Joseph C. McMann John G. Hagopian John Hagopian Margaret Z. Dominguez Qian Gong

The Cycle 5 design baseline for the Wide-Field Infrared Survey Telescope Astrophysics Focused Telescope Assets (WFIRST/AFTA) instrument includes a single wide-field channel (WFC) instrument for both imaging and slit-less spectroscopy. The only routinely moving part during scientific observations for this wide-field channel is the element wheel (EW) assembly. This filter-wheel assembly will have...

2008
Ru-Yuan Yang Fu-Der Lai Min-Hang Weng Hung-Wei Wu

— In this paper, the ultra-wideband (UWB) bandpass filter (BPF) with a wide stopband is presented. The prototype of proposed UWB BPF is by bending the five short-circuited stubs and coupling the I/O feed lines. In order to have a wide stopband, an bandstop structure embedded in input/output (I/O) lines without degrading the passband performances is used. The measured results verified that by us...

Journal: :IEICE Electronic Express 2010
Karthikeyan Sholampettai Subramanian Rakhesh S. Kshetrimayum

In this paper, a simple method to obtain a notch in the ultra-wideband (UWB) bandpass filter is presented. UWB bandpass filter is designed using ground plane aperture technique. To reject the undesired wireless local area network (WLAN) signals, a complementary single split ring resonator (CSSRR) is placed under the coupled lines of the bandpass filter. The CSSRR has flat insertion loss and goo...

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