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A new 2D-beamsteering antenna technique using an electronically controlled transmitarray is presented in this paper. When coupled to a conventional horn or an array patch antenna, the proposed transmitarray has the ability to steer the main lobe of the original antenna radiation pattern in both elevation and azimuth planes, with ranges up to 30° and 30°, respectively. The transmitarray is implemented...
A Simple channel modeling method based on correlation analysis of the electric field inside jet engine is presented. The analysis of the statistical propagation characteristics of electromagnetic field inside harsh jet engine environment is presented by using ‘Ansys® HFSS’. In this paper, we propose a method to locate the best position for receiving probes inside jet engine with minimum correlation...
In this paper, the performance of a proposed antenna selection algorithm is evaluated that is based on cooperative interference mitigation among neighbouring base stations. This algorithm has been evaluated in MIMO - OFDMA multicellular networks, for various bit rates per mobile user and blocking probabilities via extended Monte Carlo simulations. As results indicate, for 64QAM modulation type and...
This paper presents a small aperture shaped ring focus reflector antenna that covers the frequency band from 7.9 GHz to 9.1 GHz, featuring a wide bandwidth, low VSWR and low-cross-polarization levels. The proposed antenna is composed of a feed horn, a polarizer, a main- and sub- reflector. To validate the concept, an antenna prototype is manufactured and then tested. Both simulated and measured results...
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