Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Longfang Ye"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The electromagnetic vortex carrying orbital angular momentum (OAM), which is first studied at optical frequency, has begun to attract widespread attention in the field of radio-frequency/microwave. However, for the OAM mode generated by trad
Externí odkaz:
https://doaj.org/article/39d0ec44c61a46cb9ab18e9bb11b4941
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 4, Pp 1-6 (2021)
An all-dielectric nanoantenna is expected to greatly boost the nonlinear performance owing to its large mode volume and low material loss. However, it still suffers from the relatively weak near-field enhancement and the inferior far-field directivit
Externí odkaz:
https://doaj.org/article/5d20f817bbb4479c8d03211468152ad2
Publikováno v:
IEEE Access, Vol 8, Pp 33461-33470 (2020)
For the terahertz harmonic mixer, a design model based on Half-Subdivision and Half-Global Design Method (HS-HGDM) with a single functional unit is proposed. The single functional unit circuit of the mixer, such as LO or IF Low Pass Filter (LPF), is
Externí odkaz:
https://doaj.org/article/034d96c8b4304e7988375759d339ca4f
Publikováno v:
Results in Physics, Vol 27, Iss , Pp 104553- (2021)
In this paper, we propose and demonstrate a terahertz bandpass filter based on substrate integrated plasmonic waveguide (SIPW) using the standard 0.25-μm InP DHBT fabrication process. In this design, a Yagi-Uda antenna-like subwavelength array with
Externí odkaz:
https://doaj.org/article/a602bcb2740243b783b75bd4a4d89183
Publikováno v:
IEEE Access, Vol 7, Pp 75957-75964 (2019)
In this paper, we numerically and experimentally demonstrate a substrate integrated plasmonic waveguide (SIPW) concept and its application in microwave bandpass filters. This SIPW consists of double arrays of slots etched on the top and bottom metal
Externí odkaz:
https://doaj.org/article/94d8fc64768c4082a18dfb1413a01b14
Publikováno v:
IEEE Access, Vol 7, Pp 173358-173365 (2019)
In this paper, patch antenna structures are studied to simultaneously excite the ground radiation mode and patch radiation mode. Based on the analysis of characteristic current distribution on the ground plane of patch antenna, an exciting method of
Externí odkaz:
https://doaj.org/article/427c4b418f7845d89d5ad200e990c926
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 5, Pp 1-7 (2019)
We numerically demonstrate an ultra-wideband terahertz absorber using dielectric circular truncated cones on a non-structured graphene layer supported by a dielectric spacer on a metal reflector in the bottom. The absorber has an ultra-wideband absor
Externí odkaz:
https://doaj.org/article/9b9d814399e84504a29b0bcc9823414d
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
The characteristic mode theory (CMT) can provide physically intuitive guidance for the analysis and design of antenna structures. In CMT applications, the antenna current distribution is decomposed into the superposition of multiple characteristic mo
Externí odkaz:
https://doaj.org/article/3611e73891a343c0813f094ea1dd4c95
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
In this paper, a compact frequency reconfigurable circular patch antenna with an arc-shaped slot loaded in the ground layer is proposed for multiband wireless communication applications. By controlling the ON/OFF states of the five PIN diodes mounted
Externí odkaz:
https://doaj.org/article/0ba26ffd88c1475b949136f4a7763ba4
Publikováno v:
Nanomaterials, Vol 8, Iss 10, p 834 (2018)
We propose and numerically demonstrate two novel terahertz absorbers made up of periodic single- and double-layer decussate graphene ribbon arrays. The simulated results show that the proposed absorbers have narrowband near-unity terahertz absorption
Externí odkaz:
https://doaj.org/article/23a2a05800ff4c829d664240a7152745