Results 121 to 130 of about 16,826 (314)

Simple SLL Reduction Method for an SIW Longitudinal Slot Array Antenna

IEEE Access
The deployment of Ka-band radar necessitates addressing increased losses due to rain and free-space propagation, in addition to achieving low sidelobe levels (SLL).
Deokjin Seo, Junmo Choi, Jongin Ryu, Kyung-Young Jung   +3 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Numerical and experimental evaluation of phantoms for off-body wireless communications [PDF]

, 2011
The effects of a numerical and a physical phantom on different antenna configurations are evaluated. Input response, radiation patterns and efficiency are considered in the presence of the phantoms.
Paul, DL, G.S Hilton, D.L. Paul, McGeehan, JP, Giddens, H, H. Giddens, Hilton, GS, J.P. McGeehan   +7 more
core   +1 more source

Dual-Band Dielectric Resonator Antenna for C and X Band Application

International Journal of Antennas and Propagation, 2012
The proposed technique combines a slot antenna and a dielectric resonator antenna (DRA) to effectively design a dual band dielectric resonant antenna without compromising miniaturization or its efficiency.
Deepak Batra, Sanjay Sharma, Amit Kumar Kohli   +2 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Monolithic Dispersion Element‐Free Optical Spectrometer Fabricated by Combinatorial Inkjet‐Printing of Metal Halide Perovskites

Advanced Electronic Materials, EarlyView.
This work presents inkjet‐printed MHP photodetectors and optical filters. Three precursor inks enable bandgaps from 1.6–3.1 eV, covering the visible spectrum. Combining detector and filter produces a fully printed, dispersion‐free optical spectrometer with precisely tunable spectral selectivity and a minimum spectral bandwidth of 30 nm.
Vincent R. F. Schröder, Nicolas Frantzscher, Felix Hermerschmidt, Florian Mathies, Eva L. Unger, Emil J. W. List‐Kratochvil   +5 more
wiley   +1 more source

Effect of 433 MHz double-slot microwave antennas for double-zone ablation in ex vivo swine liver experiment.

PLoS ONE
PurposeTo evaluate the effects of axial length and slot-to-slot distance of double-slot microwave antenna (DSMA) with frequency of 433 MHz on the size and shape of ablation zones created under different input microwave powers.Materials and methodsThe ...
Xiaofei Jin, Mengwei Jiang, Lu Qian, Ling Tao, Yamin Yang, Lidong Xing, Zhiyu Qian, Weitao Li   +7 more
doaj   +1 more source

Mutual Coupling Reduction between Patch Antennas Using Meander Line

International Journal of Antennas and Propagation, 2018
Meander lines (MLs) in two configurations are presented to reduce the mutual coupling (MC) between two microstrip patch antenna elements. Inserting a slot in the ground plane between the antenna elements is a simple method to reduce the MC, while adding ...
Qian Li, Chong Ding, Ruichao Yang, Mingtao Tan, Gangxiong Wu, Xia Lei, Xuebing Jiang, Shuanzhu Fang, Minzhi Huang, Yubin Gong, Yanyu Wei   +10 more
doaj   +1 more source

Characteristic modes of a slot antenna design based on defected ground structure for 5G applications. [PDF]

Sci Rep, 2023
Gaber MA, El-Aasser M, Yahia A, Gad N.
europepmc   +1 more source

Environmental Effects on RRAM Cells Based on 2D Halide Perovskite Materials

Advanced Electronic Materials, EarlyView.
RRAM offers high speed, scalability, and low power, positioning it as a next‐generation non‐volatile memory. Two‐dimensional halide perovskites show promise due to tunable optoelectronic properties and flexible processing but suffer from environmental sensitivity. This review examines degradation from humidity, temperature, light, and strain, discusses
Mojtaba Joodaki, Babitha Arun, Hartmut Hillmer, Chih‐Chieh Hsu   +3 more
wiley   +1 more source