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How to evaluate a big microstrip antenna performance vs temperature?

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tony_lth

tony_lth

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Hi, Gurus,
I want to build a big microstrip antenna with high gain.
But I need to evaluate its performance under -40deg and +85deg first.
I checked the substrate spec, and found that Er can vary in +85deg.
But how to evaluate the CTE effect on performance.
For example, I got one substrate CTE spec as following, do I need to expand the antenna dimensions according to the CTE factor to evaluate antenna performance?
Best,
Tony Liu
CTE1.JPG
 

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