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|Title||Nonlinear Resonant Tunneling Diode (RTD) Circuits for Microwave A/D Conversion|
In this work, we design a nonlinear transmission line (NLTL), which is loaded with Resonant Tunneling Diode (RTD) to be suitable for microwave analog to digital converter (ADC). A resonant tunneling diode has a negative differential resistance that means when the voltage increases the current decreases. The equivalent circuit of monostable line is given. The simulation for the NLTL is performed by using OrCad program. Results show that a spike is produced and after a charging time constant, another switching occurs. Hence – similar to a relaxation oscillator - the spiking period is determined by the amplitude and frequency of the input current. The transmission line itself ensures the generation and propagation of identical spikes such as solitons formed after few diodes.
|Publisher||الجامعة الإسلامية - غزة|
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