Follow up postI have researched the concept of a rectangular cavity resonator and have come across the term modes. For a given frequency one can have multiple modes. What do these multiple modes signify practically? Are some modes better than others?

In addition, when multiple modes do co-exist in a rectangular cavity resonator was does mean. I am not designing a but have got a metal container to which I have fitted an antenna to it. There are multiple modes that co-exist. Is this a bad thing?

  • \$\begingroup\$ depends on dimension of the cavity vs. frequency \$\endgroup\$ Sep 13, 2019 at 22:30
  • \$\begingroup\$ @MarkoBuršič size is 12.03m by 2.39m by 1.84m (lxbxh) and frequency is 915MHz. \$\endgroup\$
    – JoeyB
    Sep 13, 2019 at 22:50
  • \$\begingroup\$ Note: This looks like a follow up to this user's earlier question on Physics SE. And this one on EE. \$\endgroup\$
    – The Photon
    Sep 13, 2019 at 22:53
  • \$\begingroup\$ What problem are you trying to solve? When you ask if some modes are better, better at what? \$\endgroup\$
    – The Photon
    Sep 13, 2019 at 22:54
  • \$\begingroup\$ @ThePhoton it is, but is seemed to me that is a different topic to the question I have asked in that post. Hence I thought it deserved its own post. Should I remove this post and continue it on my previous post? \$\endgroup\$
    – JoeyB
    Sep 13, 2019 at 22:55


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