H. Hajghassem

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A Si/SiO(2)/CuPt structure is formed by depositing a very thin SiO(2) layer between CuPt and P-type Si layers using e-beam evaporation. SEM images show the formation of CuPt nano clusters with an average size of less than 100 nm. This structure shows high sensitivity to applied magnetic fields at 77K and at low and high dc voltages such that magnetic field(More)
Design and implementation of a low loss Surface Acoustic Wave (SAW) filter is presented in this work. The transducer insertion loss with respect to the various design parameters, particularly acoustic aperture length is investigated. Simultaneous improvement of quality coefficient, reflection loss and insertion loss (IL) are considered in our simulation.(More)
By increasing the request for mobile services, the CDMA cellular system has been used extensively. This is due to advantages of spread spectrum techniques used in CDMA systems, and their higher capacity in compare to the FDMA & the TDMA systems. Power control is a very important issue in the CDMA systems. Different types of power control are used in the(More)
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