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—In this paper, a stair-planar phased array antenna system for mobile broadcast satellite reception in Ku-band will be introduced. The height of the antenna is only 6 cm and the system has two-dimensional electronic scanning capability. The design procedures of low profile high gain microstrip sub-array antennas, low noise amplifiers, hybrid analog phase(More)
Smart cards provide a convenient way of carrying a limited amount of personal information. This may include medical information, bank account and password information, etc. To protect this information from unauthorized access, data can be encrypted when stored on the card. To ensure privacy, we require an authentication process to ensure legitimate access(More)
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