Results 21 to 30 of about 442,005 (317)
Fundamental issues in antenna design for microwave medical imaging applications [PDF]
, 2010 This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Fernando, Michael +7 more
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Highly Efficient Angular Array Calibration Based on the Modal Wave Expansion Technique
IEEE Open Journal of Antennas and Propagation, 2021 In the upper millimeter wave range above 100 GHz, the effect of array imperfections like manufacturing uncertainties and mutual antenna coupling increases, which leads to deviations from the nominal antenna positions and angle-dependent errors in ...
Andre Durr +3 more
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Bandwidth and Center Frequency Reconfigurable Waveguide Filter Based on Liquid Crystal Technology
IEEE Journal of Microwaves, 2022 This paper presents for the first time a fully electronically reconfigurable waveguide filter tunable in bandwidth and center frequency based on liquid crystal (LC) technology.
Fynn Kamrath +10 more
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Noise considerations when determining phase of large-signal microwave measurements [PDF]
, 2006 Advances in microwave instrumentation now make it feasible to accurately measure not only the magnitude spectrum, but also the phase spectrum of wide-bandwidth signals.
Scott, Jonathan B. +3 more
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Acrylic denture base repair (Part II): St-rength of acrylic denture base cured by four different techniques [PDF]
Al-Rafidain Dental Journal, 2006 Aim: To investigate the effect of repair techniques, surface treatment, and repair space design (3 mm space and no repair space) on the transverse, and tensile strengths of repaired denture base. Materials and methods: Four hundred and sixteen samples of
Repair acrylic denture base, microwave, thermo press. +1 more
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MTT-S Mexico trip: addressing the RF and microwave community in Mexico [PDF]
, 2015 This article focuses on a recent IEEE Microwave Theory and Techniques Society (MTT-S) initiative, conceived by the Membership and Geographical Activities Committee (MGA-C) of the Society’s Administrative Committee (AdCom).
Gupta, Madhu S. +3 more
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IEEE Access, 2020 This paper focuses on the application of radio tomographic imaging in through-the-wall image reconstruction. By using the simple wireless communication devices, e.g., Wi-Fi cards, the whole building layout can be reconstructed with only the received ...
Qichang Guo +4 more
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Dispersive Fourier Transformation for Versatile Microwave Photonics Applications [PDF]
, 2014 : Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform with its intensity profile mirroring the spectrum using chromatic dispersion.
Wang, Chao, Chao Wang
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Leida xuebao, 2016 Sparse microwave imaging is new concept, theory and methodology of microwave imaging, which introduces the sparse signal processing theory to microwave imaging and combines them together to overcome the paradox of increasing system complexity and imaging
Zhang Zhe +3 more
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Estimating Significant Wave Height from SAR with Long Integration Times
Applied Sciences, 2022 Synthetic aperture radar (SAR) is an important means of estimating significant wave height with obvious advantages of all-day, all-weather, high resolution and wide swath coverage.
Yawei Zhao +4 more
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