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

小行星9320183 本研究计划将研究提高亚毫米肖特基接收器性能的方法，并通过使用平面，表面沟道二极管和次谐波混频降低对高功率THz本振源的要求。 工作在1 THz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。 不同的二极管几何形状和集成平面天线的RF特性也将被研究。 该计划预计将导致更可靠的肖特基二极管接收器在太赫兹频率降低本地振荡器的要求。 这一发展将有助于开辟毫米波成像、雷达、大气化学和大气臭氧监测的这一重要频谱区域。

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.