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A fast and accurate CAD model based on cavity model analysis has been proposed to predict the input impedance and bandwidth of a tunable right angle isosceles triangular patch antenna (RAITPA). The effect of suspended substrate on the input impedance and bandwidth has been thoroughly investigated. The accuracy of the present model is computed against the HFSS simulated results. The present model shows...
A set of closed form expressions based on cavity model are proposed to investigate the effect of composite and suspended substrate on the input impedance of an equilateral triangular patch antenna (ETPA). The proposed model has been validated employing standard commercial software (HFSS). A comparison of theoretical values for input impedance of an ETPA with that obtained by simulation (HFSS) reveals...
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...
To compute accurately the input impedance of an equilateral triangular patch antenna (ETMPA) with and without air gap, a simple and efficient CAD model based on cavity model analysis is proposed. The computed values for wide range of feed location and air gaps of an ETMPA with different antenna parameters are compared with different experimental and theoretical values available in open literature...
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...
The input impedance of an equilateral triangular shape DRA is theoretically investigated. To the best of our knowledge neither any experimental result nor any design guide line is available in open literature to estimate the input impedance of a triangular shape DRA. So, a very simple CAD model based on cavity model analysis is proposed to compute the input impedance of an equilateral triangular shape...
The effect of cavity backing on the input impedance of a triangular patch antenna is theoretically studied. To the best of our knowledge this is the first time that we have investigated the triangular cavity backing triangular patch antenna. In this paper we have proposed a very simple CAD model based on cavity model analysis to compute the input impedance of an equilateral triangular patch antenna...
A very simple CAD formulae based on cavity model analysis is used to compute the input impedance of an Equilateral Triangular Microstrip Patch Antenna (ETMPA) for wide range of variations of superstrate parameters .The computed values are compared with theoretical and experimental values available in open literature. A simulation software (CFDTD) is also used to validate our model.
An improved CAD formulation is proposed to determine accurate input impedance of rectangular microstrip patches with variable aspect ratio. This paper demonstrate the effect of aspect ratio of rectangular microstrip patch on its input impedance. The computed results have been verified with our own experiments and simulated data showing very close agreement amongst them.
A simple formulation is presented as an extension of Harrington's formula to accurately estimate the feed reactance of probe-fed microstrip patches. This, unlike previous formulas, can efficiently address all sorts of variations of microstrip and probe parameters resulting in a more versatile form. Computed results are verified with some representative measured data on rectangular and circular microstrips,...
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