An Efficient Method to Calculate the Sommerfeld Integrals Concerning a Microstrip Antenna in Stratified Media: Extension of Discrete Complex Image Theory without the Optimization Process
✍ Scribed by Xiaowen, Xu ;Shizhi, Li
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 651 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1050-1827
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✦ Synopsis
Abstract
Discrete complex image theory (DCIT) without the optimization process is used in the calculation of some Sommerfeld integrals (SI) involved in the problem of a microstrip antenna covered with a layer of medium. By comparison to the results of numerical integration method (NIM), it is proved that this DCIT not only has very high efficiency but also has rather satisfying accuracy so long as the proper spatial quasi‐static images (SQSI) are found. Special effort is made to the extraction of the above‐mentioned SQSI, and the analytic expressions of them are presented for the particular SI discussed here. The computation time of DCIT and that of NIM are compared to each other with microcomputer AFTI486, and the result shows that DCIT is several hundred times faster than NIM in the calculation of SI.