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kleinesmurf69
Joined: 06 Mar 2003
Posts: 101
Helped: 3
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 02 Aug 2004 21:34 cavity model problem: eigen mode coefficients calculation |
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Hello,
I have a problem understanding a derivation of the eigen mode coefficients of the cavity model of a circular disk and an annular ring microstrip antennna. A summary of this derivation is given in the book: Microstrip antenna design handbook, Ramesh Garg et al., Artech House 2001, pp326-327. The derivation of these coefficients involves some integrations that are not fully outlined. Immediately after that the solutions are given. I tried Maple without any result. I would really like to understand the derivation in detail. Does anuone have any relevant information regarding to this problem? Thank you.
Best regards
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eirp
Joined: 11 Dec 2001
Posts: 807
Helped: 9
Location: Phase center
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| 02 Aug 2004 21:56 Re: cavity model problem: eigen mode coefficients calculatio |
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| kleinesmurf69 wrote: |
Hello,
I have a problem understanding a derivation of the eigen mode coefficients of the cavity model of a circular disk and an annular ring microstrip antennna. A summary of this derivation is given in the book: Microstrip antenna design handbook, Ramesh Garg et al., Artech House 2001, pp326-327. The derivation of these coefficients involves some integrations that are not fully outlined. Immediately after that the solutions are given. I tried Maple without any result. I would really like to understand the derivation in detail. Does anuone have any relevant information regarding to this problem? Thank you.
Best regards |
Hello!
I don't have enough time now to give you detailed explanation..
In the meantime please look on the (without comments) derivation in attachment and try to understand..
Regards
eirp
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kleinesmurf69
Joined: 06 Mar 2003
Posts: 101
Helped: 3
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| 03 Aug 2004 10:17 Re: cavity model problem: eigen mode coefficients calculatio |
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Hello,
First of all, thank you for your respons.
The outline you gave explains the part I almost completely understood. My problem is primerly the evaluation of the integrals for the calculation of the mode coefficients. I tried a lot, but there is no way I can get the end result as given in the book on p327.
Best regards.
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irfan1
Joined: 26 Oct 2003
Posts: 292
Helped: 15
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| 03 Aug 2004 15:23 Re: cavity model problem: eigen mode coefficients calculatio |
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| Could you please include the part you didnt understand. Maybe in .pdf format?
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kleinesmurf69
Joined: 06 Mar 2003
Posts: 101
Helped: 3
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| 03 Aug 2004 18:33 Re: cavity model problem: eigen mode coefficients calculatio |
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Hello,
you may find a scan of the relevant pages and some accompanying notes In attachment.
Thanks.
Best regards.
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