Results 231 to 240 of about 664,413 (294)

Holographic inspired high-performance circular polarized spoof surface plasmon polariton leaky-wave antenna excited by a novel launcher. [PDF]

Sci Rep
Zohrevand S, Chaychi Zadeh MA, Farokhipour E, Erni D, Komjani N.   +4 more
europepmc   +1 more source

Condition Monitoring System for Planetary Journal Bearings in Wind Turbines Based on Surface Acoustic Wave Measurements-Validation on a System Level. [PDF]

Sensors (Basel)
Decker TM, Jacobs G, Scholz T, Röder J, Knops M, Blumenthal J, Bauer T.   +6 more
europepmc   +1 more source

From dysbiosis to malignancy: decoding gut-driven pathways to clinical management in hepatocellular carcinoma. [PDF]

Front Cell Infect Microbiol
Ismaiel A, Almonajjed MB, Wardeh M, Abdelghafar A, Popa SL, Sabo C, Dumitrascu DL.   +6 more
europepmc   +1 more source

Epineuronal space: an emerging hidden hierarchy bridges neuron and mind space. [PDF]

Cell Biosci
Zhang YX, You QL, Sun XD.
europepmc   +1 more source

Piezoelectric-Metal Phononic Crystal Enabling GHz Tunable Ultrahigh Q Quasi-BIC Mode. [PDF]

Adv Sci (Weinh)
Xu X, Li J, Wang R, Xiong R, Wang Y, Shen X, Wu T.   +6 more
europepmc   +1 more source

A History of Leaky Waves and Leaky-Wave Antennas

2019 URSI International Symposium on Electromagnetic Theory (EMTS), 2019
The history of leaky waves and leaky-wave antennas is an interesting one, with much of the theory being put on a firm foundation in the 1950s and 1960s by early pioneers such as Nathan Marcuvitz and Arthur A. Oliner. Rapid development of leaky-wave antennas took place after the foundation was established, and the development spread to areas such as ...
Jackson D R, Baccarelli P, Burghignoli P, Fuscaldo W, Galli A, Lovat G   +5 more
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Holographic-Based Leaky-Wave Structures: Transformation of Guided Waves to Leaky Waves

IEEE Microwave Magazine, 2021
The term space wave refers to a wave that is propagating through an open medium with a diverging wavefront as it moves away from the source. The term guided wave denotes a variety of wave configurations that are being carried by a closed/open/partially open structure [1].
Ali Araghi, Mohsen Khalily, Pei Xiao, Rahim Tafazolli   +3 more
openaire   +2 more sources

Leaky-Wave Antennas

Proceedings of the IEEE, 2012
This paper gives a basic review and a summary of recent developments for leaky-wave antennas (LWAs). An LWA uses a guiding structure that supports wave propagation along the length of the structure, with the wave radiating or “leaking” continuously along the structure. Such antennas may be uniform, quasi-uniform, or periodic.
David R. Jackson, Christophe Caloz, Tatsuo Itoh   +2 more
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Propagation characteristics of leaky waves on a 2D periodic leaky-wave antenna

2017 IEEE MTT-S International Microwave Symposium (IMS), 2017
A two-dimensional (2D) periodic leaky-wave antenna consisting of a periodic distribution of rectangular patches on a grounded dielectric substrate, excited by a narrow slot in the ground plane, is studied here. The TM0 surface wave that is normally supported by a grounded dielectric substrate is perturbed by the presence of the periodic patches to ...
Sohini Sengupta, David R. Jackson, Stuart A. Long   +2 more
openaire   +1 more source

Review of Recent Advances in the Leaky-Wave Analysis of 2-D Leaky-Wave Antennas

2020 14th European Conference on Antennas and Propagation (EuCAP), 2020
Recent developments are reviewed in the area of leaky-wave analysis of two-dimensional (2-D) leaky-wave antennas. Recent results are reviewed in three areas: (1) new beamwidth formulas for 2-D leaky-wave antennas, (2) leakywave analysis of wideband Fabry-Perot cavity antennas, and (3) leaky-wave analysis of 2-D periodic leaky-wave antennas (those that ...
Jackson D. R., Capolino F., Almutawa A., Kazemi H., Sengupta S., Fuscaldo W., Galli A., Long S. A.   +7 more
openaire   +2 more sources