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This paper presents a microstrip dual band band pass filter using two hairpin resonators with symmetric and asymmetric feed lines. A simple transmission line model is used to determine the two transmission zeros for the two hairpin resonator structure. The locations of transmission zeros are at the fundamental and higher mode resonances. The analysis is done through MATLAB and the equivalent circuits...
We outline the design of a system to exploit the TV whitespaces for dynamically gathering video feeds from public buses in a city. The system consists of the following components: (1) A FPGA based SDR board to be fixed on buses to collect the video feed from inside the bus and transmit it to the central location, (2) An open source software (GNU-radio) to configure and control the hardware and, (3)...
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