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Coaxial Cable connection to Antenna

Posted 14 févr. 2018, 10:35 UTC−5 Electromagnetics, RF & Microwave Engineering, Geometry 3 Replies

John Glenson
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Hello Guys, I´m new with COMSOL and I try to simulate a quarter wave antenne which is excited by a SMA connector. I designed the coaxial cable like person did it in this tutorial https://www.comsol.com/video/intro-to-electromagnetics-modeling-with-comsol-multiphysics. But now I don´t know how to connect my antenna with the coax cable. Which boundaries do I have to use and is there a gap between the antenna and the coax cable? Thanks for your help

3 Replies Last Post 15 févr. 2018, 04:01 UTC−5
Emily Handerson
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Posted: 6 years ago 15 févr. 2018, 01:32 UTC−5
Updated: 6 years ago 15 févr. 2018, 10:28 UTC−5

any more details?

any more details?
John Glenson
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Posted: 6 years ago 15 févr. 2018, 04:00 UTC−5
Updated: 6 years ago 15 févr. 2018, 10:28 UTC−5

Haha of course, sorry. I want to do a frequency domain simulation to see the electric field. It is a system of one quarter wave antenna, sorrounded by three couplers on a ground plate. You can see a picture in the attachment(the left one). The Antenne should be excited by the coaxial cable but I don´t know how to connect them or which boundaries to use. picture: https://imgur.com/a/3CMU8

Haha of course, sorry. I want to do a frequency domain simulation to see the electric field. It is a system of one quarter wave antenna, sorrounded by three couplers on a ground plate. You can see a picture in the attachment(the left one). The Antenne should be excited by the coaxial cable but I don´t know how to connect them or which boundaries to use. picture: https://imgur.com/a/3CMU8
John Glenson
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Posted: 6 years ago 15 févr. 2018, 04:01 UTC−5
Updated: 6 years ago 15 févr. 2018, 10:28 UTC−5

Picture: https://imgur.com/a/3CMU8

Picture: https://imgur.com/a/3CMU8

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