A Power Combined 240 GHz Frequency-Multiplier Source for Cloud Radar Applications
收藏DataCite Commons2025-10-24 更新2026-05-03 收录
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http://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.AJZDLM
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We present the design and testing of a >400 mW solid-state G-band transmitter developed for cloud radar applications. The source relies on GaAs on-chip power-combined Schottky diode frequency-triplers operating over a bandwidth that includes the 238-240 GHz span allocated for radar. High continuous-wave output power is achieved with additional four-way waveguide power combining, for a total of eight Schottky diode frequency-tripler circuits. This device achieves a conversion efficiency of ~15% near 240 GHz, and was measured to have an 8% fractional bandwidth spanning 235-255 GHz. The source has been integrated into the Jet Propulsion Laboratory’s CloudCube radar instrument for profiling clouds and drizzle to reveal aspects of their microphysics and dynamics.
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Root
创建时间:
2025-09-21



