Subharmonically-Pumped Schottky Diode Mixers for Quasi- Optical Terahertz Receivers

9320183 WEIKLE这项研究计划将研究通过使用平面、表面沟道二极管和亚谐混频来提高亚毫米肖特基接收器的性能和降低对高功率太赫兹本机振荡器源的要求的方法。工作在1太赫兹以上的肖特基二极管将被集成到准光学结构中，从而允许使用频率较低、功率相对较低的本地振荡器。还将研究不同二极管几何形状和集成平面天线的射频特性。这项计划预计将产生更可靠的肖特基二极管接收器，减少对太赫兹频率下的本机振荡器的要求。这一进展将有助于为毫米波成像、雷达、大气化学和大气臭氧监测开辟这一重要的光谱区域。

9320183 WEIKLE This research program will investigate methods for improving the performance of submillimeter Schottky receivers and reducing the requirement for high-power THz local oscillator sources through the use of planar, surface-channel diodes and subharmonic mixing. Schottky diodes operating above 1 THz will be integrated into quasi-optical structures that permit the use of lower-frequency, relatively low-power local oscillators. The RF properties of different diode geometries and integrated planar antennas will also be studied. This program is expected to result in more reliable Schottky diode receivers with reduced local oscillator requirements at THz frequencies. This development will help to open up this important region of the spectrum for millimeter wave imaging, radar, atmospheric chemistry, and monitoring of atmospheric ozone.