Results 31 to 40 of about 24,010 (297)
Modal and Polarization Qubits in Ti:LiNbO$_3$ Photonic Circuits for a Universal Quantum Logic Gate [PDF]
, 2010 Lithium niobate photonic circuits have the salutary property of permitting the generation, transmission, and processing of photons to be accommodated on a single chip.
Alferness +34 more
core +3 more sources
A Transistorized Directional Coupler
IEEE Transactions on Circuit Theory, 1968 In previous papers an active directional coupler using a triode, [1],[2] and its use in a bidirectional broad-band amplifier, [3] has been described. It is obvious that it is important to investigate how such a device can be realized using semiconductor techniques.
Denoth F., Pellegrini B.
openaire +4 more sources
Modal Analysis of Directional Coupler and Its Equivalent Circuit
Advanced Electromagnetics, 2019 A modal analysis for the directional coupler is presented in this paper. The analysis is based on the mode-matching technique. The theory is verified by Ansoft HFSS software at a directional coupler with standard X-band (WR 90) rectangular waveguide ...
M. Mohammadi
doaj +1 more source
Calibration of a Polarimetric Microwave Radiometer Using a Double Directional Coupler
Remote Sensing, 2021 This paper presents a built-in calibration procedure of a 10-to-20 GHz polarimeter aimed at measuring the I, Q, U Stokes parameters of cosmic microwave background (CMB) radiation.
Luisa de la Fuente +3 more
doaj +1 more source
Coupling tunable D-band directional coupler for millimeter-wave applications
, 2018 A coupling tunable D-band directional coupler is designed based on a novel coupling grid structure proposed in this letter. The designed directional coupler has excellent performance with ultra-wideband.
Liu, Fukun, Xu, Handong, Xu, Weiye
core +1 more source
Near-infrared Hong-Ou-Mandel interference on a silicon quantum photonic circuit [PDF]
, 2012 Near-infrared Hong-Ou-Mandel quantum interference is observed in silicon nanophotonic directional couplers with raw visibilities on-chip at 90.5%. Spectrally-bright 1557-nm two-photon states are generated in a periodically-poled KTiOPO4 waveguide chip ...
Englund, Dirk R. +11 more
core +2 more sources
Novel broadband design of SIW directional coupler
The Journal of Engineering, 2019 To enable broadband characteristic, a novel type of directional coupler based on slot coupling theories is proposed. Besides, this directional coupler is designed on the basis of substrate integrated waveguide.
Jia Wang, Tianqing Ling
doaj +1 more source
Spin filtering in nanowire directional coupler
, 2013 The spin transport characteristics of a nanowire directional electronic coupler have been evaluated theoretically via a transfer matrix approach. The application of a gate field in the region of mixing allows for control of spin current through the ...
Dias, M. Rebello Sousa +3 more
core +1 more source
A broadband directional coupler based on ferrite cores
Electronics Letters, 2021 A broadband directional coupler based on ferrite cores is proposed for high frequency (HF)/Very high frequency (VHF)/Ultra High Frequency (UHF) communication systems.
Lei Liu, Nan Song, Zheng‐Bin Wang
doaj +1 more source
The Design of Directional Coupler for ECRH System
IEEE Access, 2017 A study of coupling characteristic between circular corrugated waveguide and rectangular smooth waveguide has been presented in this paper, which aims to develop a directional coupler integrated into a miter bend for an electron cyclotron resonance ...
Dajun Wu +7 more
doaj +1 more source