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The characteristics of circular patch antenna (CPA) with and without air gaps in between substrate and ground plane are thoroughly investigated. We present a set of closed‐form expressions based on cavity model analysis to predict accurately the characteristics of CPA with and without air gaps. The proposed model is valid for both coaxial‐fed and microstrip line‐fed CPA operated in dominant and higher...
A fast and accurate CAD model based on cavity model analysis is proposed in this paper for computing the input impedance of circular patch antenna operated in between 0.8 to 1.33 GHz. The proposed model is valid for vary large to very small value patch diameter with any feed position. The computed values of circular patch having different diameter with different feed locations are compared with different...
An improved and simple CAD model based on cavity model analysis is proposed in this paper for computing the input impedance of circular patch antenna with and without variable air gap in between substrate and ground plane. The proposed model is valid for vary large to very small value of variable air gaps. The computed values of circular patch with and without variable air gaps are compared with different...
For computing the resonant frequency of circular patch antenna with and without variable air gap in between substrate and ground plane an improved and simple CAD model based on cavity model analysis is proposed in this paper. The proposed model is valid for vary large to very small value of patch diameter with entire range of permittivity and thickness of the substrate with variable air gaps. The...
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