Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Sajad Jahanbakht"'
Autor:
Sajad Jahanbakht, Seyed Ahmad Abtahi
Publikováno v:
IET Microwaves, Antennas & Propagation. 14:1909-1917
A frequency-domain approach for phase noise analysis of integer-N multiplier-type phase-locked loops (PLLs), based on the conversion matrix approach, is introduced that can take all non-linearities in the loop into account. It can also characterise a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de6bf0ed97954a0d5b90eb336f34f9cd
https://doi.org/10.1049/iet-map.2020.0672
https://doi.org/10.1049/iet-map.2020.0672
Publikováno v:
Waves in Random and Complex Media. 31:1287-1302
Using the suitable boundary conditions, the problem of wave transmission from a loss free isotropic cylindrical metallic waveguide to a semi-bounded plasma waveguide has been analyzed. The consider...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5e57c5ab429a6d396a85f2aaf15f317
https://doi.org/10.1080/17455030.2019.1660015
https://doi.org/10.1080/17455030.2019.1660015
Autor:
Sajad Jahanbakht
Publikováno v:
Journal of the Optical Society of America B. 39:2742
Optoelectronic oscillators (OEOs) have recently been considered very good candidates for producing ultra-low phase noise radio frequency (RF) oscillations. One of the most important noise sources of any OEO is the relative intensity noise (RIN) of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68702a0ed6bd5f6eed8c4cd7450e33ac
https://doi.org/10.1364/josab.462858
https://doi.org/10.1364/josab.462858
Publikováno v:
Optics Communications. 407:349-354
In this paper a theoretical derivation of unloaded and loaded Q -factor of delay-line cavities, such as optical fiber delay-lines, and delay-line based oscillators, such as optoelectronic oscillators (OEOs), is presented based on three approaches: (I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f4e5f9dafe537b84737ac867149fbc9
https://doi.org/10.1016/j.optcom.2017.09.077
https://doi.org/10.1016/j.optcom.2017.09.077
Autor:
Mohammad Rahimi, Sajad Jahanbakht
Publikováno v:
Applied Optics. 60:11125
Optoelectronic oscillators (OEOs) are hybrid systems consisting of optical and radio-frequency (RF) parts that are used to produce ultralow phase noise RF oscillations. Dual-loop OEOs can overcome some problems incorporated with single-loop OEOs such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd0dfa07e676471ea0cf3cfa66efe4f9
https://doi.org/10.1364/ao.444345
https://doi.org/10.1364/ao.444345
Autor:
Sajad Jahanbakht
Publikováno v:
Journal of the Optical Society of America B. 38:2813
Optoelectronic oscillators (OEOs) have attracted much attention for producing ultra-low phase-noise microwave/millimeter-wave oscillations. Traditional delay-based OEOs usually suffer from strong spurious peaks in their phase noise power spectral den
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d4d9294b299322d51e868fccc712b7f
https://doi.org/10.1364/josab.435698
https://doi.org/10.1364/josab.435698
Publikováno v:
Waves in Random and Complex Media. 28:488-507
In this paper, a plasma waveguide made of two eccentric cylindrical metallic walls have been studied according to the theory of transmission lines. The inductance per unit length L, the capacitance...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f24dc1e21d6f16da655d064c1e2fb1f
https://doi.org/10.1080/17455030.2017.1367436
https://doi.org/10.1080/17455030.2017.1367436
Autor:
Sajad Jahanbakht, Zahra Chamani
Publikováno v:
Progress In Electromagnetics Research M. 61:205-213
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dae9ced813e28af1b920c0f2f2607e60
https://doi.org/10.2528/pierm17090301
https://doi.org/10.2528/pierm17090301
Publikováno v:
Optics & Laser Technology. 135:106665
Optoelectronic oscillators (OEOs) based on optical whispering gallery mode resonators (WGMRs) are amongst state-of-the-art technologies to generate ultra-low phase noise microwave signals. In this paper, a WGMR-based OEO is designed and effects of di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::825ecfdd6f798ad217f3384e557b88cc
https://doi.org/10.1016/j.optlastec.2020.106665
https://doi.org/10.1016/j.optlastec.2020.106665
Publikováno v:
Plasmonics. 12:1245-1255
Using the solutions of field equation, due to the electromagnetic wave scattering phenomena from a nano plasma sphere(NPS), the inserted force on nano plasma sphere is simulated. For this purpose, with using suitable Green’s function, the scatterin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77ada208b7f0d1c987d9361987c9fd8c
https://doi.org/10.1007/s11468-016-0382-3
https://doi.org/10.1007/s11468-016-0382-3