Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Mohammad Mohammadirad"'
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 15, Iss 3, Pp 225-236
Abstract A novel FSS-Backed reflectarray unit cell is introduced to design a dual-band X/Ku Reflectarray Antenna (RA). A Ku-band RA based on this FSS-Backed cell element is designed and located on the top of a conventional X-band RA. Actually, the ba
Externí odkaz:
https://doaj.org/article/621a094de82740abb319304b641efe6d
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 14:84-87
A novel broadband unit cell is proposed in this letter. This new cell element consists of three coupled circular rings where four quasi-spiral delay lines are connected to the outer ring to provide the required phase shift. The spiral shape of the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7736324f31415c2e7b7329f66e35191
https://doi.org/10.1109/lawp.2014.2355496
https://doi.org/10.1109/lawp.2014.2355496
Autor:
Mohammad Mohammadirad, Nader Komjani
Publikováno v:
Electromagnetics. 34:111-127
This article describes the analysis and design of a new beam-scanning dual-reflectarray antenna in an offset Gregorian configuration. The phase distribution on sub-reflectarray is introduced based on a new formulation. In this method, the distances b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34be2309f9a33fe217ee1566337f248f
https://doi.org/10.1080/02726343.2014.863685
https://doi.org/10.1080/02726343.2014.863685
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Volume: 15, Issue: 3, Pages: 225-236, Published: SEP 2016
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 15, Iss 3, Pp 225-236
Journal of Microwaves, Optoelectronics and Electromagnetic Applications v.15 n.3 2016
Journal of Microwaves. Optoelectronics and Electromagnetic Applications
Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)
instacron:SBMO
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 15, Iss 3, Pp 225-236
Journal of Microwaves, Optoelectronics and Electromagnetic Applications v.15 n.3 2016
Journal of Microwaves. Optoelectronics and Electromagnetic Applications
Sociedade Brasileira de Microondas e Optoeletrônica (SBMO)
instacron:SBMO
A novel FSS-Backed reflectarray unit cell is introduced to design a dual-band X/Ku Reflectarray Antenna (RA). A Ku-band RA based on this FSS-Backed cell element is designed and located on the top of a conventional X-band RA. Actually, the band-stop F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f89b0a316eb9dc9dbc128bdd24abefc
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742016000300225&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742016000300225&lng=en&tlng=en
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 23:517-526
A new cell element is introduced for broadband reflectarray applications. The presented unit cell exhibits linear phase response which makes it a suitable candidate for broadband X-Ku band applications. This cell element consists of three concentric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::153478431f1a4f5070eeccf6097a0c37
https://doi.org/10.1002/mmce.20685
https://doi.org/10.1002/mmce.20685
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 11:1104-1107
In this letter, the effect of moving the feed on the operation bandwidth of a broadband reflectarray is investigated through simulation and measurement. A new broadband cell element with optimized dimensions to achieve linear phase shift is proposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fb228cec9b01814c7c1822c219bf859
https://doi.org/10.1109/lawp.2012.2218563
https://doi.org/10.1109/lawp.2012.2218563
Scattering from spherical conducting/dielectric objects in a rotationally uniaxial anisotropic media
Publikováno v:
AEU - International Journal of Electronics and Communications. 65:539-542
In this paper the electric-type dyadic Green’s function for a conducting and a homogeneous dielectric sphere in a uniaxial anisotropic media is presented. For this purpose we use the modified spherical vector wave functions in the uniaxial unbounde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e85d7342ee4817e823bb6e145b11d65
https://doi.org/10.1016/j.aeue.2010.08.006
https://doi.org/10.1016/j.aeue.2010.08.006
Autor:
Mohammad Reza Chaharmir, Nader Komjani, Abdel-Razik Sebak, Mohammad Mohammadirad, Jafar Shaker
Publikováno v:
2011 IEEE International Symposium on Antennas and Propagation (APSURSI).
The effect of changing the feed position on performance of a broadband reflectarray is investigated in this paper. An offset-fed broadband reflectarray is designed based on a unit-cell with wideband properties in X-Ku band. The proposed cell element
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6f2eb96b305bb70829b40872f25e603
https://doi.org/10.1109/aps.2011.5996650
https://doi.org/10.1109/aps.2011.5996650
Publikováno v:
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference.
This paper presents a new microstrip-fed wideband low-profile planar quasi-monopole antenna with total size of 30×40×0.79mm3. Practically, this antenna is a modified and improved version of Planar Inverted Cone Antenna (PICA). The proposed antenna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04b2c030e00133dbc389b9f4ef08599c
https://doi.org/10.1109/antem.2010.5552511
https://doi.org/10.1109/antem.2010.5552511