Results 21 to 30 of about 541,984 (296)

Acoustic scattering characteristics of underwater multicell cavity corner reflectors [PDF]

open access: yesZhihui kongzhi yu fangzhen
Underwater multicell single-layer thin metal plate corner reflectors can’t form a relatively stable TS in a large space because of its strong frequency characteristics.
WANG Jieya, LUO Yi, CHU Zichao, WANG Xiaowei
doaj   +1 more source

Acoustic Scattering Characteristics of Underwater Eight-grid Air-filled Cavity Corner Reflector

open access: yes水下无人系统学报, 2022
Underwater corner reflectors have a strong acoustic scattering ability and can be used to mark underwater structures and simulate underwater false targets. In accordance with the limitation of the reflection range of a single-grid corner reflector, a new
Zi-chao CHU, Yi LUO, Wu-di WEN
doaj   +1 more source

Accurate study of the electromagnetic and circuit behavior of finite conducting wedges and interconnects with arbitrary cross-sections [PDF]

open access: yes, 2010
The manufacturing of interconnects often leads to conductors with a non-rectangular cross-section. Especially for sharp edges, it is therefore important to study the influence of corner effects on the interconnect circuit characteristics.
De Zutter, Daniël   +2 more
core   +1 more source

Toward Information Transfer Around a Concave Corner by a Surface-Plasmon-Polariton Wave

open access: yesIEEE Photonics Journal, 2019
As optical interconnects employing surface-plasmon-polariton (SPP) waves are expected to enable faster communication in integrated circuits, the time-domain Maxwell equations were solved using the finite-difference time-domain method to investigate the ...
Rajan Agrahari   +2 more
doaj   +1 more source

RADAR CROSS SECTION CHARACTERIZATION OF CORNER REFLECTORS IN DIFFERENT FREQUENCY BANDS AND POLARIZATIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Corner Reflectors (CR) are standard passive radar targets which offer one of the best solutions for SAR calibration. Radar Cross Section (RCS) of corner reflectors plays a vital role for estimation of calibration parameters and hence back scatter ...
P. V. Jayasri   +4 more
doaj   +1 more source

Low-temperature measurement of the fundamental frequency response of a semiconductor laser by active-layer photomixing [PDF]

open access: yes, 1989
We use the active-layer photomixing technique to directly modulate the output of a GaAs semiconductor laser operating at temperatures as low as 4.2 K. The technique produces modulation with nearly perfect immunity to device parasitic effects, revealing ...
Newkirk, Michael A., Vahala, Kerry J.
core   +1 more source

Moving Target Simulation of Multi-Band Radar Based on Doppler Frequency Signal Generation Technology [PDF]

open access: yesRadioengineering, 2023
This paper proposes a corner reflector and Luneburg ball reflector group. The omnidirectional radar cross-sectional (RCS) distribution characteristics of a fighter are simulated using the sharp and smooth RCS distribution features of the corner and the ...
J. Hao, X. Wang, X. Sun, H.n Gao, L. Zou
doaj  

Design and Implementation of 2×4 Truncated Corner Patch Microstrip Array Antenna with U-Slot at 2.4 GHz Frequency for Wi-Fi Applications

open access: yesJurnal Jaringan Telekomunikasi, 2022
Antennas are an important component in wireless communication systems that continue to grow in the use of the 2.4 GHz frequency for 4G/LTE applications. Technology in the field of telecommunications has developed very rapidly using wireless communication,
Koesmarijanto Koesmarijanto   +2 more
doaj   +1 more source

Simulation of Ground Motion From Finite‐Fault Modeling Incorporating the Influence of Duration

open access: yesEarth and Space Science, 2023
On 21 May 2021 (local time), an Mw 6.1 earthquake struck the Yangbi County, Yunnan Province, China. The finite fault stochastic simulation approach is usually used to simulate ground motions in high‐frequency band (f > 1 Hz).
Pengfei Dang, Jie Cui, Yi Li, Wenbo Wang
doaj   +1 more source

A wideband high-linearity RF receiver front-end in CMOS [PDF]

open access: yes, 2004
This paper presents a wideband high-linearity RF receiver-front-end, implemented in standard 0.18 /spl mu/m CMOS technology. The design employs a noise-canceling LNA in combination with two passive mixers, followed by lowpass-filtering and amplification ...
Arkesteijn, Vincent J.   +2 more
core   +2 more sources

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