Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Nan-Wei Chen"'
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 1, Pp 215-223 (2012)
We demonstrate a novel scheme for photonic generation of chirped millimeter-wave (MMW) pulse with ultrahigh time-bandwidth product (TBP). By using a fast wavelength-sweeping laser with a narrow instantaneous linewidth, wideband/high-power photonic tr
Externí odkaz:
https://doaj.org/article/af164f46464b4add8fdaa9c13ebcb5db
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 4, Pp 1071-1079 (2012)
We demonstrate a novel technique for photonic generation of few-cycle millimeter-wave (MMW) pulse using a WR-10 waveguide and near-ballistic unitraveling carrier photodiode (NBUTC-PD)-based photonic-transmitter-mixer (PTM). A 2.5-cycle MMW pulse is g
Externí odkaz:
https://doaj.org/article/b2c24c4961c34132a9d3de31be7437c3
Autor:
Nan-Wei Chen Jann-Yenq Liu
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 19, Iss 3, p 291 (2008)
On 24 March 1991, global ultra-low-frequency (ULF) pulsations (1.1 - 3.3 mHz) observed in the magnetosphere as well as on the ground were studied via analyzing magnetic field data obtained from a global network, comprising ground-based observatories
Externí odkaz:
https://doaj.org/article/3a02342ce9744beabb6f9bb193e3e6da
Autor:
Nan-Wei Chen, 陳念偉
83
Global long-period geomagnetic micropulsations were observed ionosphere and magnetosphere during the recovery phase of a storm occuring at 0342UT on March 24,1991. An analysis ofasurement reveals that the pulsations are possibly a consequence
Global long-period geomagnetic micropulsations were observed ionosphere and magnetosphere during the recovery phase of a storm occuring at 0342UT on March 24,1991. An analysis ofasurement reveals that the pulsations are possibly a consequence
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/92796201869035267714
Autor:
null Naseem, Nan-Wei Chen, Syed Hasan Parvez, Zohauddin Ahmad, Sean Yang, H.-S. Chen, Hsiang-Szu Chang, Jack Jia-Sheng Huang, Jin-Wei Shi
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
Flip-chip bonding APDs with 14µm window diameters are demonstrated. Wide-bandwidth (36GHz), high-responsivity (3.4A/W), low dark current (175nA) and high MMW output power (-1dBm at 40GHz) can be achieved simultaneously with 12.5mA Isat under 0.9Vbr.
Publikováno v:
2022 IEEE Conference on Antenna Measurements and Applications (CAMA).
Autor:
Jhih-Min Wun, Suparna Seshadri, Bohao Liu, Nan-Wei Chen, Jin-Wei Shi, Nathan P. O'Malley, Daniel E. Leaird, Andrew M. Weiner
Publikováno v:
Journal of Lightwave Technology. 39:1619-1628
Millimeter wave (MMW) sensing systems have potential for enhanced range and angular resolution in comparison to lower radio frequencies. This article employs photonic-assisted radio-frequency arbitrary waveform generation to implement a high-bandwidt
Autor:
Jhih-Min Wun, Jin-Wei Shi, Hao-Chen Wang, Cooper H. Dreyfus, Rui-Lin Chao, Nan-Wei Chen, Christopher Koh
Publikováno v:
Journal of Lightwave Technology. 36:4235-4242
The design and analysis of novel waveguide-coupled photonic transmitters, which can have an extremely wide $ \pm $ 3-dB fractional optical-to-electrical (O–E) bandwidth at near the terahertz (THz) operating frequency regime (100%; 0.1–0.3 THz), a
Autor:
Bohao Liu, Jhih-Min Wun, Nathan P. O’Malley, Daniel E. Leaird, Nan-Wei Chen, Jin-Wei Shi, Andrew M. Weiner
Publikováno v:
Conference on Lasers and Electro-Optics.
Publikováno v:
2018 IEEE Photonics Conference (IPC).
Waveguide-coupled THz photonic transmitters, which have novel design of dual-ridged horn antenna and ultra-fast photodiodes, demonstrate extremely wide 3-dB fractional O-E bandwidth (100%; 0.1-0.3 THz). A reasonable power (31.6 μW; 0.24 THz) can be