Zobrazeno 1 - 10
of 12 724
pro vyhledávání: '"Radar cross section"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract This study proposes and experimentally validates a multifunctional, ultra-wideband polarization conversion metasurface. The design integrates polarization conversion and electromagnetic scattering functions into a single structure, enabling
Externí odkaz:
https://doaj.org/article/8cd046bae97d4f69b0bbdf9fe21c44f5
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract The work report on architecture of integrated frequency selective meta-surface (IFSMS) absorbers for aerospace stealth applications. Fabricated IFSMS comprised of a pattern metasurface integrated with dielectric interlayer and conducting gro
Externí odkaz:
https://doaj.org/article/b54ae113c04b40e5aec2da29cf49ad5e
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 5, Pp 458-466 (2024)
In this paper, a hybrid checkerboard metasurface is proposed for controlling radar cross-sections (RCSs) using a small number of active devices. The proposed metasurface consists of passive and active artificial magnetic conductors. The passive metas
Externí odkaz:
https://doaj.org/article/454132afdc1e4e2481b7cbc659b830e2
Simplistic metasurface design approach for incident angle and polarization insensitive rcs reduction
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract This paper proposes the design of a metasurface for polarization and incident angle-insensitive RCS reduction applications. An ellipse-shaped unit cell is utilized as a polarization converter, which is then arranged to form a checkerboard su
Externí odkaz:
https://doaj.org/article/4eae4914c4d74f47a90a2798dacad7f8
Autor:
Coşkun, Aysu, Bilicz, Sándor
Publikováno v:
COMPEL -The international journal for computation and mathematics in electrical and electronic engineering, 2024, Vol. 43, Issue 3, pp. 507-518.
Publikováno v:
Nanophotonics, Vol 13, Iss 19, Pp 3737-3748 (2024)
Retroreflectors can scatter the arbitrarily incident wave back to incoming direction, demonstrating great potential in wireless communication. However, there are limitations in adaptive retroreflection and polarization modulation with the existing re
Externí odkaz:
https://doaj.org/article/188270471fbc4953b1925fbdbec38acf
Autor:
ZHAO Qijun
Publikováno v:
Hangkong gongcheng jinzhan, Vol 15, Iss 3, Pp 143-150 (2024)
High requirements have been placed on the stealth performance of armed helicopters during wartime missions，in order to reduce the probability of the helicopter being found during the task，based on geometric optics method and consistent diffractio
Externí odkaz:
https://doaj.org/article/89a771c6128f4c8d8d0410a8c059d0e8
Publikováno v:
Geo Data, Vol 6, Iss 1, Pp 32-42 (2024)
The accuracy of microwave remote sensing relies on the calibration of the radar measurement. It is important to estimate the radar cross-section (RCS) using a passive corner reflector (CR) or active transponder to evaluate the quality of imaging rada
Externí odkaz:
https://doaj.org/article/f366167f0e8243b6bb77d7f40fd78e96
Autor:
Mengrong Xi, Yongjiu Feng, Zhenkun Lei, Pengshuo Li, Rong Wang, Panli Tang, Xiaoyan Tang, Xiaohua Tong
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
The geometric positioning accuracy of synthetic aperture radar images is a key factor impacting their application, necessitating geometric calibration for improved accuracy. Traditional geometric calibration methods rely on ground calibration fields
Externí odkaz:
https://doaj.org/article/4f37ada77f3243fe9f4421086903da89
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 8, Iss , Pp 100572- (2024)
A wide-band microwave absorber using five layers of resistive ink patterns is designed with a periodicity of 0.15λL, where λL denotes the wavelength at the lowest operating frequency. Symmetrically shaped resonators are patterned on five layers of
Externí odkaz:
https://doaj.org/article/1477128a7d49400b8c04feca6e7388da