Modelling of mutual coupling in microstrip antenna arrays fed by microstrip line

• Autorzy: Kosowski M. , Zieniutycz W.
• Konferencja: 15th International Conference on Microwaves, Radar and Wireless Communications MIKON'04. Warsaw, 17-19.05, 2004
• Języki publikacji: EN

Abstrakty

EN

The results of modelling of the coupling between the rectangular microstrip patches in linear array are presented. The equivalent circuit in form of a combination of the transmission lines stubs is proposed. It is then applied to model the coupling between two subsequent patches and two patches separated by third one. It is shown that such circuit well represents the mutual coupling in the narrow frequency band (4%). The equivalent circuit was applied to examine how the coupling modified the signals in the input ports of the array and as a consequence how the radiation pattern of the array is changed due to the coupling between the patches. Two linear arrays with cocecans radiation pattern were next designed to verify the theory: first which included proposed equivalent circuit and second one without the coupling (reference array). The results of measurements of VSWR and the radiation pattern for both arrays are presented and compared with theory.

Słowa kluczowe

EN

microstrip antenna; modelling

• Wydawca: Wydawnictwo Naukowe PWN SA
• Czasopismo: Kwartalnik Elektroniki i Telekomunikacji
• Rocznik: 2004
• Tom: Vol. 50, z. 4
• Strony: 629--636
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Kosowski M.

• Gdańsk University of Technology, Faculty of Electronics Telecommunications, and Informatics (ETI), Department of Microwave and Antenna Engineering, ul. Narutowicza 11/12, 80-952 Gdańsk, Poland

autor

Zieniutycz W.

• Gdańsk University of Technology, Faculty of Electronics Telecommunications, and Informatics (ETI), Department of Microwave and Antenna Engineering, ul. Narutowicza 11/12, 80-952 Gdańsk, Poland

Bibliografia

• 1. H. Steyskal, J. S. Herd. “Mutual Coupling Compensation in Small Array Antennas IEEE Trans Antennas Propagat., vol. AP-38, December 1990, pp. 1971-1975.
• 2. P. B. Katehi. “Mutual Coupling between Microstrip Dipoles in Multielements Arrays”, IEEE Trans. Antennas Propagat., vol. AP-38, December 1990, pp. 1971-1975.
• 3. R. R. Ramirez, F. De Flaviis, “A Mutual Coupling Study of Linear and Circural Polarized Microstrip Antennas for Diversity Wireless Systems” IEEE Trans. Antennas Propagat., vol. AP-51, February 2003, pp. 238-248.
• 4. E. Penard, C. Terret, “Design and Technology of Low-Cost Printed Antennas”, In Handbook of Microstrip Antennas, Vol. 1, J. R. James and P. S. Hall Peter Peregrinus, London, UK, 1989.