Zobrazeno 1 - 10
of 113
pro vyhledávání: '"RongXin Tang"'
Frequency selection mechanism of sub-terahertz wave propagation within the sharp-coned plasma sheath
Publikováno v:
AIP Advances, Vol 14, Iss 4, Pp 045211-045211-8 (2024)
The propagation characteristics of sub-terahertz (sub-THz) waves through the sharp-coned plasma sheath are investigated, revealing a frequency selection phenomenon. Two significant electron density gradients within the sharp-coned plasma sheath, whic
Externí odkaz:
https://doaj.org/article/7433e04e4e534fbba030c6644fea7f8b
The propagation characteristics of low frequency radio waves in magnetized hypersonic plasma sheaths
Publikováno v:
AIP Advances, Vol 13, Iss 9, Pp 095019-095019-7 (2023)
Communication blackouts have been a main threat to hypersonic vehicles for decades. The low frequency communication was considered a potential approach to mitigate the “blackout.” Nowadays, low frequency transmitters serving underwater communicat
Externí odkaz:
https://doaj.org/article/ed877aa304a348a1a51ea68438616011
Autor:
Bopu Feng, Haimeng Li, Xiongdong Yu, Zhigang Yuan, Rongxin Tang, Dedong Wang, Zhihai Ouyang, Xiaohua Deng
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 8, Pp n/a-n/a (2023)
Abstract The exohiss waves are hiss‐like whistler mode waves that occur outside plasmapause. Although these waves can cause the loss of radiation belt electrons ∼
Externí odkaz:
https://doaj.org/article/ef53074661224776b50fc751846ee8c5
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 189-195 (2022)
A compact wideband dual-polarized antenna for base station application is proposed. The antenna element consists of a main radiator, two baluns, and a reflector. Two methods are used to enhance bandwidth and improve the port-to-port isolation. Firstl
Externí odkaz:
https://doaj.org/article/cc28dfa4119847939d74cbd642c5e833
Autor:
Yangyang Wang, Zhihai Ouyang, Rongxin Tang, Haimeng Li, Xiongdong Yu, Zhigang Yuan, Xiaohua Deng
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 3, Pp n/a-n/a (2023)
Abstract Magnetosonic waves (MSWs) can be discrete or continuous in a time‐frequency spectrogram. For discrete MSWs that satisfy the Chirikov resonance overlap criterion (CROC), the spectrum can be regarded as continuous and hence the quasi‐linea
Externí odkaz:
https://doaj.org/article/3513b8d14e774a0c89d70ff43bfc3737
Publikováno v:
Electronics Letters, Vol 58, Iss 13, Pp 499-501 (2022)
Abstract In the recent couple of decades, some multifunctional spaceborne active radars had been launched. Those radars used to be broadband radars using dipole transmitting antennas. The odd‐order resonant frequency of the antenna does not complet
Externí odkaz:
https://doaj.org/article/262578ee6c514532b9ac5e8110525ae4
Publikováno v:
Frontiers in Materials, Vol 9 (2022)
The increasing demands for metasurfaces have led researchers to seek effective inverse design methods, which are counting on the developments in the optimization theory and deep learning techniques. Early approaches of the inverse design based on dee
Externí odkaz:
https://doaj.org/article/27e2a52a18b14889ad90b9d42197477f
Publikováno v:
Atmosphere, Vol 14, Iss 5, p 810 (2023)
Electron density (or electron concentration) is a critical metric for characterizing the ionosphere’s mobility. Shortwave technologies, remote sensing systems, and satellite communications—all rely on precise estimations of electron density in th
Externí odkaz:
https://doaj.org/article/4b452da90445408ab1fc0a248ba1e46b
Autor:
Peng Hu, Haimeng Li, Zhihai Ouyang, Rongxin Tang, Liangjin Song, An Yuan, Bopu Feng, Yangyang Wang, Wenqian Zou
Publikováno v:
Magnetochemistry, Vol 9, Iss 2, p 52 (2023)
Earth’s radiation belt and ring current are donut-shaped regions of energetic and relativistic particles, trapped by the geomagnetic field. The strengthened solar wind dynamic pressure (Pdyn) can alter the structure of the geomagnetic field, which
Externí odkaz:
https://doaj.org/article/4ef483d9826a4d43b67bdee4524bf3fa
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 141 (2023)
The behavior of the Martian ionosphere during global dust storms has always been a popular topic. Based on many Mars Atmosphere and Volatile Evolution observations, a Martian ionospheric electron density model is constructed herein using a physical-g
Externí odkaz:
https://doaj.org/article/dd898ba597cb479bada1517a7b36523b