Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Omid Sotoudeh"'
Autor:
Seyed Omid Sotoudeh Navroodi, Mojgan Nicknam, Ameneh Ahmadi, Fatemeh Pooragha Roodbarde, Saeed Azami
Publikováno v:
Iranian Journal of Psychiatry, Vol 13, Iss 2 (2018)
Objective: Parents of children with autism spectrum disorders are exposed to mental distress because of having a disabled child more than parents with children with other psychological disorders, and their children's disorder has a negative effect on
Externí odkaz:
https://doaj.org/article/05e0ce9f69da437bb2451662e7cf2e61
Publikováno v:
International Journal of Wireless Information Networks. 19:84-96
Next-generation mobile communication systems require high data transmission rate and low bit error rate, but multi-path fading still stands as a major problem. Antenna diversity techniques can overcome the problem. In this paper, we thoroughly study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c686d21c2ffda0784e79a617574c4ea
https://doi.org/10.1007/s10776-011-0160-2
https://doi.org/10.1007/s10776-011-0160-2
Publikováno v:
IEEE Transactions on Antennas and Propagation. 54:330-339
We introduce a partly corrugated hard horn, consisting of a smooth-walled horn with an attached longitudinally corrugated outer section. This alleviates the problems with the manufacturing when the longitudinal corrugations extend into the throat of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0144b9673174a38b282205fc7931cea8
https://doi.org/10.1109/tap.2005.863389
https://doi.org/10.1109/tap.2005.863389
Publikováno v:
Microwave and Optical Technology Letters. 44:516-523
In this paper, a classical-type approach is used to analyze the hard horn antenna. The quasi-TEM mode in the longitudinally corrugated cylindrical waveguide is found by using the homogenized asymptotic boundary conditions. The finite horn length is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::716a64cdd2c2c052f17ce752ed90abcd
https://doi.org/10.1002/mop.20684
https://doi.org/10.1002/mop.20684
Publikováno v:
2008 IEEE Antennas and Propagation Society International Symposium.
In this work, diversity performance of two PIFA antennas on a small ground plane is studied. In this case, when the second antenna is located on the left edge, better diversity gain can be obtained. Matching network can be used to reduce the correlat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3beab4db878fa7e6c311ea33747d458a
https://doi.org/10.1109/aps.2008.4620060
https://doi.org/10.1109/aps.2008.4620060
Publikováno v:
2008 2nd International Conference on Bioinformatics and Biomedical Engineering.
The recent international inter-laboratory study conducted by IEEE TC34, SC2, WG2 to develop the IEEE 1528.3 standard for computational compliance assessment of cell phone exposure is presented. Thirteen laboratories participated in this project with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41bf936316e879724a898811b239c25f
https://doi.org/10.1109/icbbe.2008.194
https://doi.org/10.1109/icbbe.2008.194
Publikováno v:
2005 IEEE Antennas and Propagation Society International Symposium.
A hard hom for dual band operation is designed. Emphasis has been put on low cross-polar performance over both the Rx and Tx bands in the Ka-band multimedia application. The horn has also been designed with manufacturability in mind, with direct tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c01232c5e985ab1ce1f2086df98d7989
https://doi.org/10.1109/aps.2005.1552263
https://doi.org/10.1109/aps.2005.1552263
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).
Recently it has been shown that reverberation chambers can be used to measure radiation efficiency and input impedance of small antennas. In particular, the it can be used to measure these characteristics for small antennas located close to lossy obj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c02b894ee475daa3d60c7fabc2a3ad3
https://doi.org/10.1109/aps.2003.1220374
https://doi.org/10.1109/aps.2003.1220374
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).
We have demonstrated that in a cluster-fed reflector, a normal single-tuned hard horn can satisfy the usual -25 dB requirement for the cross polarization over a large frequency band, but it cannot completely satisfy the requirements for the co-polar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::147995341738767e92b88a03589c6f60
https://doi.org/10.1109/aps.2003.1220321
https://doi.org/10.1109/aps.2003.1220321
Publikováno v:
IEEE Antennas and Propagation Society Symposium, 2004..
We have presented a simple design of the hard horn antenna, electrically designed to be used as feed in the Ka-band cluster-fed multibeam antenna systems, and which can cover both bands of the system with medium efficiency >75 % and maximum cross-pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::365089f7d90cbf933964f57340c69a7a
https://doi.org/10.1109/aps.2004.1330483
https://doi.org/10.1109/aps.2004.1330483