Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Hosein Mohseni Armaki"'
Publikováno v:
IET Radar, Sonar & Navigation. 13:646-652
Mahdasht Satellite Receiving Station (MSRS) has been using 10 m reflector antenna to communicate with LEO satellite at S-band (2.2–2.3 GHz) and X-band (8–8.4 GHz). Presently, antenna pointing operates in program tracking. Pointing accuracy under
In-turn capacitive effect resultant from a high dielectric constant found in a ferromagnetic ferrite
Publikováno v:
AEU - International Journal of Electronics and Communications. 124:153351
Getting negative permeability in ferromagnetic materials as observed in dimensional resonance effect (DRE) raises several questions about the existence of negative permeability in natural materials like ferrite, its dependence on core size, and the w
Publikováno v:
Microwave and Optical Technology Letters. 57:1695-1699
This article presents the results of simulation and fabrica- tion of a new ultra wideband ultra low-profile blade shape monopole antenna. The antenna is a meanderline loaded by lumped elements with an electrically small ground plane. The reflection c
Publikováno v:
2017 Iranian Conference on Electrical Engineering (ICEE).
In this work blind spot phenomenon in phased array antenna is studied and removed by using EBG structures. This phenomenon is produced due to interaction between surface waves propagation in substrate and Floquet mode in array. Blind spot in phased a
Autor:
and Majid Tayarani, Alaa Aldin Sarhan, Homayoon Oraizi, Seyed Hosein Mohseni Armaki, Nader Ghadimi
Publikováno v:
Progress In Electromagnetics Research C. 54:49-56
This paper presents the simulation and fabrication of a new power divider/combiner based on a new waveguide H-plane folded magic-T structure. Measurements of the fabricated magic-T conflrm the accuracy of the optimization algorithms existing in the C
Publikováno v:
Progress In Electromagnetics Research C. 55:43-52
This paper introduces a new method for the design and realization of two monopulse antennas with circular polarization and unique phase center for two different frequency bands. The design uses a compact sequential-rotation serially fed 2×2 patch ar
Publikováno v:
Progress In Electromagnetics Research C. 27:209-222
A novel 180 - hybrid is proposed, based on a modifled Gysel power combiner, using phase shifter and ground bridge for the difierence output. Also the Defected Microstrip Structure has been used to increase the hybrid's phase matching. All steps of th