Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators
The influence of mutual coupling effects on the radiation pattern of microstrip antennas is investigated by introducing symmetry properties in the surface current distributions. The standard method of moments is used, which requires only the upper half of three x— and y— direction offset p...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
1992-05-01
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| Series: | Radioengineering |
| Online Access: | http://www.radioeng.cz/fulltexts/1992/92_00_02.pdf |
| _version_ | 1811237670432538624 |
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| author | M. Gimersky J. Bornemann |
| author_facet | M. Gimersky J. Bornemann |
| author_sort | M. Gimersky |
| collection | DOAJ |
| description | The influence of mutual coupling effects on the radiation pattern of microstrip antennas is investigated by introducing symmetry properties in the surface current distributions. The standard method of moments is used, which requires only the upper half of three x— and y— direction offset patch radiators to be solved, while the symmetric lower half is incorporated after the determination of the current distribution. Furthermore, the Toeplitz symmetry of the impedance matrix is taken into account, and the singular value decomposition is used to invert the resulting non-square matrix in a numerically stable way. Both the symmetry property and the Toeplitz symmetry procedures reduce storage and CPU-time requirements in the analysis of broadside microstrip arrays. The pattern characteristics calculated with and without mutual coupling interactions are found to differ up to 10 dB in sideloge levels which clearly demonstrates that the pattern can be as severely affected by mutual coupling as the commonly investigated input impedance. The predicted results are in good agreement with measured data on single patches. |
| first_indexed | 2024-04-12T12:28:20Z |
| format | Article |
| id | doaj.art-21adf386545a4ac58f2ad56acdad0a27 |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-04-12T12:28:20Z |
| publishDate | 1992-05-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-21adf386545a4ac58f2ad56acdad0a272022-12-22T03:33:06ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25121992-05-0110Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch RadiatorsM. GimerskyJ. BornemannThe influence of mutual coupling effects on the radiation pattern of microstrip antennas is investigated by introducing symmetry properties in the surface current distributions. The standard method of moments is used, which requires only the upper half of three x— and y— direction offset patch radiators to be solved, while the symmetric lower half is incorporated after the determination of the current distribution. Furthermore, the Toeplitz symmetry of the impedance matrix is taken into account, and the singular value decomposition is used to invert the resulting non-square matrix in a numerically stable way. Both the symmetry property and the Toeplitz symmetry procedures reduce storage and CPU-time requirements in the analysis of broadside microstrip arrays. The pattern characteristics calculated with and without mutual coupling interactions are found to differ up to 10 dB in sideloge levels which clearly demonstrates that the pattern can be as severely affected by mutual coupling as the commonly investigated input impedance. The predicted results are in good agreement with measured data on single patches.www.radioeng.cz/fulltexts/1992/92_00_02.pdf |
| spellingShingle | M. Gimersky J. Bornemann Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators Radioengineering |
| title | Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators |
| title_full | Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators |
| title_fullStr | Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators |
| title_full_unstemmed | Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators |
| title_short | Utilisation of Symmetry Properites for the Pattern Analysis of Mutually Coupled Patch Radiators |
| title_sort | utilisation of symmetry properites for the pattern analysis of mutually coupled patch radiators |
| url | http://www.radioeng.cz/fulltexts/1992/92_00_02.pdf |
| work_keys_str_mv | AT mgimersky utilisationofsymmetryproperitesforthepatternanalysisofmutuallycoupledpatchradiators AT jbornemann utilisationofsymmetryproperitesforthepatternanalysisofmutuallycoupledpatchradiators |