Results 21 to 30 of about 2,266 (184)

A single‐beam full‐space scanning leaky‐wave antenna with high‐efficiency based on spoof surface plasmon polaritons

IET Microwaves, Antennas &Propagation, Volume 16, Issue 9, Page 602-609, July 2022., 2022
Abstract A single‐beam full‐space scanning leaky‐wave antenna with high‐efficiency based on spoof surface plasmon polaritons (SSPPs) is presented in this paper. An array of circular patches is placed periodically around the SSPPs waveguide to couple the electromagnetic wave and radiate to the free space. The antenna has been simulated, manufactured and
Huan Jiang, Xiangyu Cao, Liaori Jidi, Huanhuan Yang, Jun Gao   +4 more
wiley   +1 more source

Ultrafast carrier dynamics in terahertz photoconductors and photomixers: beyond short‐carrier‐lifetime semiconductors

Nanophotonics, Volume 11, Issue 11, Page 2661-2691, June 2022., 2022
Abstract Efficient terahertz generation and detection are a key prerequisite for high performance terahertz systems. Major advancements in realizing efficient terahertz emitters and detectors were enabled through photonics‐driven semiconductor devices, thanks to the extremely wide bandwidth available at optical frequencies.
Ping‐Keng Lu, Anuar de Jesus Fernandez Olvera, Deniz Turan, Tom Sebastian Seifert, Nezih Tolga Yardimci, Tobias Kampfrath, Sascha Preu, Mona Jarrahi   +7 more
wiley   +1 more source

Enhanced Terahertz Spectral‐Fingerprint Detection of α‐Lactose Using Sub‐Micrometer‐Gap On‐Chip Waveguides

Advanced Theory and Simulations, Volume 5, Issue 3, March 2022., 2022
This work develops a novel method for detecting spectral fingerprints of target materials in the terahertz frequency range by introducing sub‐micrometer‐gap coplanar waveguide (CPW) devices. It is shown that the sensitivity per unit volume of lactose can be improved ≈453 times with the CPW device with a 0.5 µm wide slot compared to the device with a 20 
Sae June Park, Rowan S. Parker‐Jervis, John E. Cunningham   +2 more
wiley   +1 more source

Broadband Low-Loss On-Body UHF to Millimeter-Wave Surface Wave Links Using Flexible Textile Single Wire Transmission Lines

IEEE Open Journal of Antennas and Propagation, 2022
On-body transmission represents a challenge due to human body shadowing. This paper proposes a Sommerfeld-Goubau single-wire transmission line (SWTL) implemented using electronic textiles for low-loss on-body links up to millimeter-wave frequencies ...
Mahmoud Wagih
doaj   +1 more source

Unwinding the roles of RNA helicase MOV10

WIREs RNA, Volume 13, Issue 2, March/April 2022., 2022
MOV10 is an RNA helicase that is involved in a number of cellular roles ranging from mRNA metabolism and translation, modulation of viral infectivity, inhibition of retrotransposition, regulation of synaptic transmission, and the development of cancer.
Aatiqa Nawaz, Temirlan Shilikbay, Geena Skariah, Stephanie Ceman   +3 more
wiley   +1 more source

Numerical method for solving the problem of TE-waves in the Goubau line

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2021
Background. The problems of electromagnetic wave propagation in open metaldielectric structures are important in the study of waveguides. The purpose of the article is to numerically study a problem of the leaky and surface TE-electromagnetic wave ...
E.Yu. Smol'kin, V.Yu. Martynova
doaj   +1 more source

A wide‐angle forward to backward scanning wideband leaky‐wave antenna based on microstrip spoof surface plasmon polaritons

IET Microwaves, Antennas &Propagation, Volume 16, Issue 2-3, Page 91-102, February 2022., 2022
Abstract In this work, a wide‐angle forward to backward scanning wideband leaky‐wave antenna (LWA) based on the microstrip spoof surface plasmon polaritons (SSPPs) transmission line (TL) is proposed. The proposed microstrip SSPP TL has tapered corrugations on both sides of the metallic strip conductor.
Somia Sharma, Rajesh Kumar Singh, Ananjan Basu, Shiban K. Koul   +3 more
wiley   +1 more source

Design and characterization of a kicker for the Tsinghua Thomson scattering storage ring

Results in Physics, 2021
The injection scheme of the Tsinghua Thomson scattering storage ring consists of a kicker and a dipole. The pulse length of the kicker deflection should be less than the revolution period, which is a very difficult challenge to overcome in the kicker ...
Pengrui Zhu, Wenhui Huang
doaj   +1 more source

Sequential MAVS and MyD88/TRIF signaling triggers anti‐viral responses of tick‐borne encephalitis virus‐infected murine astrocytes

Journal of Neuroscience Research, Volume 99, Issue 10, Page 2478-2492, October 2021., 2021
Upon infection of primary neurons, astrocytes and microglia with tick‐borne encephalitis virus, astrocytes mount particularly high IFN‐β responses that initially depend on MAVS and later on MyD88/TRIF signaling. Abstract Tick‐borne encephalitis virus (TBEV), a member of the Flaviviridae family, is typically transmitted upon tick bite and can cause ...
Luca Ghita, Veronika Breitkopf, Felix Mulenge, Andreas Pavlou, Olivia Luise Gern, Verónica Durán, Chittappen Kandiyil Prajeeth, Moritz Kohls, Klaus Jung, Martin Stangel, Imke Steffen, Ulrich Kalinke   +11 more
wiley   +1 more source

On the existence of nonlinear coupled surface TE- and leaky TM-electromagnetic waves in a circular cylindrical waveguide

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022
Background. The purpose of this research is to study the process of propagation of coupled surface TE and leaky TM of polarized electromagnetic waves in the Goubau line (an ideally conducting cylinder covered with a concentric dielectric layer) filled ...
Yu.G. Smirnov, E.Yu. Smol'kin
doaj   +1 more source