Zobrazeno 1 - 10
of 6 137
pro vyhledávání: '"W band"'
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 23, Iss 6, Pp 482-489 (2023)
In this study, a dual-band low-noise amplifier (LNA) was implemented by applying a transformer-based neutralization technology to the W-band. Incorporating the neutralization technique was difficult owing to performance degradation in the W-band. How
Externí odkaz:
https://doaj.org/article/1624347c00b04bef9d53698bbc5bee73
Autor:
Yuxin Wang, Jingyu Guo, Yang Dong, Duo Xu, Yuan Zheng, Zhigang Lu, Zhanliang Wang, Shaomeng Wang
Publikováno v:
Sensors, Vol 24, Iss 12, p 3709 (2024)
A staggered vane-shaped slot-line slow-wave structure (SV-SL SWS) for application in W-band traveling wave tubes (TWTs) is proposed in this article. In contrast to the conventional slot-line SWSs with dielectric substrates, the proposed SWS consists
Externí odkaz:
https://doaj.org/article/b489cc96115946998b56f1ec89b7a871
Publikováno v:
Microelectronics International, 2022, Vol. 40, Issue 2, pp. 104-108.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/MI-06-2022-0111
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 9350-9357 (2023)
In-cloud vertical air motion is a key parameter to describe cloud dynamics and lifecycles. Short-wavelength ($Ka$- and $W$-band) radars are often used to observe clouds and extract the vertical air motion from the radar-measured Doppler velocity. How
Externí odkaz:
https://doaj.org/article/ccede964d80e403eb9df5d6e7085b1ad
Publikováno v:
IEEE Access, Vol 11, Pp 86945-86952 (2023)
This article presents a high-efficiency circularly polarized slotted waveguide leaky wave antenna for the W band frequency range. The wall thickness of the slotted waveguide leaky wave antenna containing the radiating slots is tuned to optimize the o
Externí odkaz:
https://doaj.org/article/0c27ebe11d134173a28fefb83f7a6d15
Publikováno v:
IEEE Access, Vol 11, Pp 66309-66317 (2023)
In this paper, a W-band single-layer reflectarray antenna is proposed with the advantages of broadband and high aperture efficiency. A novel dual rotation-symmetry windmill element is designed in the W-band, which consists two layers of copper patche
Externí odkaz:
https://doaj.org/article/fc438be997c74495b1c2ea42b97cac79
Publikováno v:
Micromachines, Vol 15, Iss 3, p 385 (2024)
A wideband multi-polarized square-horn antenna based on an orthogonal mode transducer (OMT) is developed for working in the whole W-band in this paper. The designed antenna is capable of radiating multiple polarization modes as horizontal polarizatio
Externí odkaz:
https://doaj.org/article/3c749da7ba0c4b3299423decbf2c532a
Publikováno v:
Applied Sciences, Vol 14, Iss 4, p 1622 (2024)
With increasing interest in the W-band, there is growing focus on parabolic reflector antennas that are known for efficiently inducing high-gain radiation characteristics. There is particular focus on parabolic antennas with diverse defocus-fed appli
Externí odkaz:
https://doaj.org/article/e7a23e2f944a44c49cc609fee50e8f7d
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 8, Pp 544-551 (2022)
Abstract The development of multi‐pixel receivers on the millimetre‐wave and terahertz bands demands on the integration of key waveguide devices. In this paper, two waveguide bandpass filters operating at the W‐band are developed based on the l
Externí odkaz:
https://doaj.org/article/4ff2cc89c693433ab5cfc18382852a39
Autor:
Jun Shi, Yihang Zhou, Zhikun Xie, Xiaqing Yang, Wenxuan Guo, Fuwei Wu, Chengyuan Li, Xiaoling Zhang
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 118, Iss , Pp 103295- (2023)
Due to the existence of antenna phase center (APC) error, drift occurs on the sequence of images acquired by video-SAR back projection (BP) algorithm with respect to a fixed coordinate system. Theoretical analysis shows that the drift is directly rel
Externí odkaz:
https://doaj.org/article/b0bc5fce63a14a10b12e4e342bebadf7