Results 111 to 120 of about 66,835 (307)

Microstrip dual-bandpass filter design

2017 25th Signal Processing and Communications Applications Conference (SIU), 2017
Dual-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, Akyüz, Burhan, Dikkafa, Mustafa, Alaca, Özgür, İmeci, Taha, Güngör, Oğuzhan Salih   +5 more
openaire   +2 more sources

Inhibitory Decay and Supercritical Brain Dynamics During Sleep Deprivation

Advanced Science, EarlyView.
Sleep deprivation progressively shifts human brain dynamics from near‐critical toward supercritical states, as revealed by neuronal avalanche analysis of resting‐state fMRI. These changes track subjective sleep pressure rather than vigilance lapses and show marked network heterogeneity. A circuit model suggests that reduced inhibitory efficacy provides
Dai Zhang, Liqin Zhou, Rong Wang, Yuehua Han, Zhentao Zuo, Yanghua Tian, Ke Zhou   +6 more
wiley   +1 more source

Multiple mechanisms shape FM sweep rate selectivity: complementary or redundant?

Frontiers in Neural Circuits, 2012
Auditory neurons in the inferior colliculus (IC) of the pallid bat have strong rate selective responses to downward frequency modulated (FM) sweeps attributable to the spectrotemporal pattern of their echolocation call (a brief FM pulse).
Zoltan M Fuzessery, Anthony J Williams
doaj   +1 more source

Compact Tabletop Magnetic Resonance Elastography for Mapping Soft Tissue Viscoelasticity

Advanced Science, EarlyView.
This work introduces a compact, low‐cost tabletop magnetic resonance elastography platform for high‐resolution viscoelastic mapping in soft‐tissue specimens. Using this method in human colorectal liver metastases, we demonstrate fully automated biomechanical profiling of treatment response and show that heterogeneity‐based metrics outperform ...
Weijie Zhao, Lisa‐Marie Skrip, Heiko Tzschätzsch, Tom Meyer, Hossein S. Aghamiry, Alexander Arnold, Lene Änne Böhne, Jakob Jordan, Oliver Boehm, Agnes K. Boehm, Steffen Görner, Jakob Schattenfroh, Yanglei Wu, Pedro Augusto Dantas de Moraes, Johann Pratschke, Jürgen Braun, Igor M. Sauer, Jing Guo, Ingolf Sack, Karl H. Hillebrandt   +19 more
wiley   +1 more source

Single-/Dual-Band Bandpass-to-Bandstop Filters With Center Frequency Tunability

IEEE Access
This paper reports on the design and experimental validation of a new class of frequency-tunable filters with switchable bandpass-to-bandstop transfer function characteristics.
Ali Kursad Gorur, Dimitra Psychogiou
doaj   +1 more source

Design and realization of microstrip filters with new defected ground structure (DGS)

Engineering Science and Technology, an International Journal, 2017
In this paper, various microstrip filters, such as bandpass (narrow/wideband) filters, dual band bandpass filter and lowpass filters, are designed with new metal strips loaded defected ground structure (DGS).
Arjun Kumar, M.V. Kartikeyan
doaj   +1 more source

Low-Cost Hybrid Manufactured Waveguide Bandpass Filters with 3D Printed Insert Dielectric [PDF]

, 2019
In this paper, a new type of simple and inexpensive waveguide filter manufacturing that minimizes material consumption and has capabilities of high performance and rapid prototyping is presented. Filter inserts are fabricated by a combination of additive
Budimir, D., Jankovic, U., Mohottige, N., Basu, A.   +3 more
core  

Miniaturized dual-mode microstrip bandpass filters with a reconfigurable notched band for UWB applications

, 2013
A novel, compact, and highly selective dual-mode microstrip bandpass filter with a switchable notched band is presented. A notched band is developed by employing an open-circuited stub which can be switched by a pin diode to avoid WLAN interferences (5.8
Budimir, D., Rabbi, K.M.F.
core   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

Advanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan, Yuqing Zhang, Wangzhe Zhou, Zhaojian Zhang, Xiaoyun He, Xinpeng Jiang, Yiyi Li, Xin He, Jiagui Wu, Yuanmu Yang, Junbo Yang   +10 more
wiley   +1 more source

RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter [PDF]

Radioengineering, 2015
A tunable bandpass filter based on a technique that utilizes substrate integrated waveguide (SIW) and double coupling is presented. The SIW based bandpass filter is implemented using a bowtie shaped resonator structure.
M. Z. Ur Rehman, Z. Baharudin, M. A. Zakariya, M. H. M. Khir, M. T. Jilani   +4 more
doaj