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Microwave heating simulation

Posted 5 janv. 2021, 21:49 UTC−5 RF & Microwave Engineering, Heat Transfer & Phase Change 2 Replies

Wang Yang
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I'm trying a power temperature rise simulation of RF connector. After setting the input port and output port of the microwave frequency and power, I check the temperature rise, but the temperature rise result is far greater than the experimental result. I wonder if there is a problem with the boundary conditions, Thanks!

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2 Replies Last Post 6 janv. 2021, 00:27 UTC−5
Robert Koslover Certified Consultant
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Posted: 4 years ago 5 janv. 2021, 23:22 UTC−5

Are you allowing your RF connector to lose heat to the surrounding enviroment? If not, perhaps that is your problem. If yes, have you modeled that heat loss realistically? Perhaps you should post your model to the forum.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Are you allowing your RF connector to lose heat to the surrounding enviroment? If not, perhaps that is your problem. If yes, have you modeled that heat loss realistically? Perhaps you should post your model to the forum.
Wang Yang
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Posted: 4 years ago 6 janv. 2021, 00:27 UTC−5

Are you allowing your RF connector to lose heat to the surrounding enviroment? If not, perhaps that is your problem. If yes, have you modeled that heat loss realistically? Perhaps you should post your model to the forum.

Thank for your answer. I have added heat radiation and heat convection to the outer surface of the part, and it plays a role in heat dissipation, but the temperature is still very high. I'm not sure if the microwave power is not set properly.

>Are you allowing your RF connector to lose heat to the surrounding enviroment? If not, perhaps that is your problem. If yes, have you modeled that heat loss realistically? Perhaps you should post your model to the forum. Thank for your answer. I have added heat radiation and heat convection to the outer surface of the part, and it plays a role in heat dissipation, but the temperature is still very high. I'm not sure if the microwave power is not set properly.

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