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Simulation of Characteristics of Terahertz Oscillator Based on Resonant Tunneling Mechanism |
Niu Pingjuan1,Yu Liyuan1,Mao Luhong2,Guo Weilian2 |
1. Tianjin Polytechnic University Tianjin 300387 China 2. Tianjin University Tianjin 300072 China |
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Abstract Because of its high frequency and high speed,resonant tunneling device is suitable for the terahertz oscillator source device. In this paper,the oscillation characteristic of resonant tunneling diodes in THz wave range is simulated. The equivalent circuit theory and Pspice software are used on resonant tunneling oscillator equivalent circuit model for the oscillation frequency and power simulation. In the theoretical calculation,the tunneling and transit-time effects and parasitic elements are analyzed,and the results indicate that by improving the RTD and slot antenna structure,resonant tunneling oscillation frequency can reach 1.2 THz,and the output power can reach 115μW. In the Pspice simulation,the results are more consistent with the theoretical calculation.
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Received: 11 October 2013
Published: 22 January 2015
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