Results 91 to 100 of about 169,549 (347)

Passivated SiC Surfaces for Photonic and Quantum Applications: Balancing Chemical Stability and Surface Luminescence

Advanced Materials Interfaces, EarlyView.
Low‐temperature passivation of SiC reveals that optical surface quality and chemical stability are not directly correlated. Ar plasma‐treated and SiNx‐passivated surfaces yield the lowest photoluminescence background, whereas CF4 plasma and ALD‐grown dielectrics introduce higher emission.
Marina Scharin‐Mehlmann, Sarah Saarmann, Christian Gobert, Robert Köhler, Patrick Berwian   +4 more
wiley   +1 more source

Design and implementation of a Quarter Mode Substrate Integrated Waveguide (QMSIW) cavity filter

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, a novel Quarter Mode Substrate Integrated Waveguide (QMSIW) cavity filter is presented. A prototype at 5GHz for the proposed filter has been simulated using CST Microwave Studio, and fabricated using standard Printed Circuit Board (PCB ...
Assal Alkhoder Jr, Fariz Abboud
doaj   +1 more source

Dielectric rod loaded tunable substrate integrated waveguide slot antenna

IET Microwaves, Antennas & Propagation, 2022
This paper presents a novel passive tuning technique to mechanically tune the resonant frequency of a substrate integrated waveguide (SIW) slot antenna, by using cylindrical rods of different dielectric materials in the air holes.
Sriparna De, Shiban K. Koul, Kamal K. Samanta   +2 more
doaj   +1 more source

Highly efficient impulse-radio ultra-wideband cavity-backed slot antenna in stacked air-filled substrate integrated waveguide technology [PDF]

, 2018
An impulse-radio ultra-wideband (IR-UWB) cavity-backed slot antenna covering the [5.9803; 6.9989] GHz frequency band of the IEEE 802.15.4a-2011 standard is designed and implemented in an air-filled substrate integrated waveguide (AFSIW) technology for ...
Lemey, Sam, Rogier, Hendrik, Van den Brande, Quinten, Vanfleteren, Jan   +3 more
core   +1 more source

Wideband Substrate Integrated Waveguide Fed Open Slot Antenna Array

IEEE Access, 2020
This work investigates the use of substrate integrated waveguide fed open slot antenna (WOSA) in an array for the first time to provide a new SIW slot antenna array with wide bandwidth and single-layer structure. The antenna array consists of $4 \times 2$
Xuan Yi, H. Wong
semanticscholar   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide

IEEE Access
This paper proposes a sub-THz Riblet coupler based on the empty substrate integrated waveguide (ESIW) and a transition structure between ESIW and a WR-3 rectangular waveguide.
Ching Li, Yu-Hsiang Cheng
doaj   +1 more source

Exploring the Potential of Microwave Annealing for Enhancing Si‐based GeSn Lasers

Advanced Materials Technologies, EarlyView.
We explore low‐thermal‐budget microwave annealing to enhance the performance of group‐IV GeSn lasers on Si. Microwave annealing under optimal conditions can simultaneously relax unwanted compressive strain and enhance the material quality of the GeSn active layer, thereby reducing the threshold and increasing the laser operating temperature.
Yue‐Tong Jheng, Cheng‐Feng Liu, Ruei‐Jhang Wang, Yu Cheng, Lung‐Yi Hsu, Yonder Berencén, Shengqiang Zhou, Hanh Thi‐Thu Tran, Guo‐En Chang   +8 more
wiley   +1 more source

Wideband Transition for Increased-Height Empty Substrate Integrated Waveguide

IEEE Access, 2019
Recently, Empty Substrate Integrated Waveguide (ESIW) technology was proposed for embedding empty waveguides into planar substrates in order to improve their performance.
Juan A. Martinez, Angel Belenguer, Juan J. De Dios, Hector Esteban Gonzalez, Vicente E. Boria   +4 more
doaj   +1 more source

Design study of a thermocouple power sensor as a monolithic fin-line [PDF]

, 2011
Making traceable power measurements above 110 GHz using current measurement technologies is challenging. We investigate a design of power sensor consisting of a thermocouple-based integrated circuit (IC) mounted as a finline component in WR-6 waveguide ...
Jones, Mark Hedley, Scott, Jonathan B.
core   +2 more sources