Calculation of electric and magnetic energy stored in a rectangular patch

✍ Scribed by KHELLAF, A. ;CHIKOUCHE, D. ;DANIEL, J. P.

• Book ID: 101279034
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 137 KB
• Volume: 13
• Category: Article
• ISSN: 1069-8299
• DOI: 10.1002/(sici)1099-0887(199708)13:8<617::aid-cnm85>3.0.co;2-c

✦ Synopsis

In this paper it is shown that, from the expression of the internal electric and magnetic ®elds, we can express the electric and magnetic energy stored inside a cavity in the form of a simple sum. This proposed method has the advantage of avoiding the calculation of a double integral which needs an appropriate numerical method. The knowledge of the radiating power can lead to the evaluation of the internal impedance at the desired frequency. Also it is shown that the electric and magnetic energy stored in a cavity can be expressed with the internal electric and magnetic ®elds in the form of the presented expression at resonance frequency. There is excellent agreement with the cavity method that has been con®rmed by experimental results.