Value chain · CLM-0971
In plain terms
The heat from each tiny rectifier can only escape downwards into the copper it sits on, because the two hair-thin gold wires on top barely conduct heat at all. That one-sided path, not the sheet's ability to radiate, is what sets the limit.
The claim as recorded
The same model identifies the thermal bottleneck of the thin-film rectenna as the diode package: heat leaves the Schottky junction almost entirely through the base to the copper circuit, because the two 1 mil gold wires on the lid side present a very large thermal resistance, so the diode dissipates on one side only.
Evidence behind this: T3-modelled result, the mechanism behind CLM-0970.
Scope and limits
SPECIFIC TO THE RAYTHEON CERAMIC-PACKAGED SCHOTTKY DIODE OF BROWN'S DESIGN; A DIFFERENT PACKAGE CHANGES THE PATH. A model result about a modelled package.
What it assumes
No assumptions are recorded against this claim.
Where it comes from
p.5, verbatim: "the heat flow on the lid side is poor because of the 1 mil thick gold wires (2) which have a very large thermal resistance". p.7: the bypass filter's interconnect doubles the effective radiating area of the base path.
Basis: thermal resistance of the diode package's two conduction paths
Related records
- Answers question
- QST-018 not published in this release
Cite this
energyaperture.com/c/clm-0971
CLM-0971, Energy Aperture, as of 1992.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-339
- CLM-0970A 1992 computer model of the same thin-film receiving antenna, sitting in space with nothing but radiation to cool it, found its diodes...
- Contradicted by
- CLM-0941In space there is no air to carry away the waste heat, so a rectenna's output is limited by how much waste heat it can radiate. The report...CLM-0970A 1992 computer model of the same thin-film receiving antenna, sitting in space with nothing but radiation to cool it, found its diodes...