Experimental and theoretical characteristics of sub-terahertz and terahertz oscillations of resonant tunneling diodes integrated with slot antennas
Experimental and theoretical characteristics of sub-terahertz and terahertz oscillations of resonant tunneling diodes integrated with slot antennas
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DOI：
10.1143/jjap.44.7809
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发表时间：
2005-11-01
期刊：
影响因子：
--
通讯作者：
Asada, M
中科院分区：
文献类型：
--
作者：
Orihashi, N;Hattori, S;Asada, M
报道了缝隙天线集成的共振隧穿二极管（RTD）亚太赫兹和太赫兹振荡的实验和理论特性。在实验中，在GaInAs/AlAs双势垒RTD中获得了高达0.6 THz的振荡。从理论上分析了包括RTD和缝隙天线在内的整个器件结构的振荡特性。考虑了RTD的所有寄生元件的等效电路，并使用三维电磁仿真器对天线的实际结构进行了分析。理论分析与振荡频率和输出功率的测量结果吻合较好。理论结果表明，RTD本身具有3.0 THz的振荡潜力，如果对器件结构进行优化，采用缝隙天线的RTD振荡器可以实现2.8 THz的振荡。输出功率分析表明，90 μ W在1太赫兹是可能的，通过优化器件结构。
Experimental and theoretical characteristics of sub-terahertz and terahertz oscillations in resonant tunneling diodes (RTDs) integrated with slot antennas are reported. In the experiments, oscillations up to 0.6 THz were obtained in GaInAs/AlAs double-barrier RTDs. The oscillation characteristics were theoretically analyzed for the total device structure including RTD and slot antenna. The equivalent circuit with all parasitic elements was taken into account for the RTD, and the actual structure of the antenna was analyzed using a three-dimensional electromagnetic simulator. The theoretical analysis was in good agreement with the measurements of oscillation frequency and output power. It was shown from the theoretical results that the RTD itself has the potential to oscillate up to 3.0 THz, and that the RTD oscillator with slot antenna is able to oscillate up to 2.8 THz if the device structure is optimized. The output power analysis showed that 90 mu W at 1 THz is possible by optimizing the device structure.