Equivalent circuit modelling of aperture-coupled microstrip patch antennas
ABSTRACT In this paper we present a new approach for identifying an equivalent circuit for the impedance of an aperture-coupled microstrip patch antenna (AC-MSPA). We then use this equivalent circuit to develop a simple design procedure for the AC-MSPA.
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ABSTRACT: This paper presents a SPICE model for calculating the coupling voltages of a rectangular microstrip antenna illuminated by plane waves. A receiving model based on Thévenin’s theorem is first established in which the ideal voltage source is calculated by the reciprocity theory and the impedance is calculated by the cavity model. Then, by using the method of vector fitting, the obtained receiving model is approximated by rational functions, which can be directly converted to RLC circuits. The proposed SPICE model, which allows the incorporation of either time-varying or nonlinear loads, can be applied to both frequency-domain and time-domain analyses. The proposed SPICE model was verified by several numerical examples.IEEE Transactions on Electromagnetic Compatibility 02/2014; 56(1):83-92. DOI:10.1109/TEMC.2013.2271587 · 1.35 Impact Factor
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ABSTRACT: A SPICE model of an antenna for transmitting is proposed. This model allows for the calculation of the frequency-domain radiation fields for a range of frequencies in which the model is valid, it also allows for the direct calculation of the time-domain (TD) radiation fields for an arbitrary TD excitation signal, the spectrum of which should be within the modeling range. The model is then verified by two examples, both of them demonstrate its validity. This model can be a part of a complete system-level model for electromagnetic compatibility simulation.International Journal of Microwave and Wireless Technologies 04/2014; 7(02):173-178. DOI:10.1017/S1759078714000531 · 0.46 Impact Factor