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Analysis of proximity fed circularly polarized square patch antenna with multiple triangular notches is presented. The triangular notch tunes the spacing between TM10 and TM01 modes to yield circular polarization. Further a design of single triangular notch cut square patch antenna is also proposed which gives similar axial ratio bandwidth. The resonant length formulation at modified TM01 and TM10...
The notch cut circular microstrip antenna to realize circular polarization on thinner substrate is proposed. The notch degenerates fundamental TM11 mode into two orthogonal modes, to yield circular polarization. To improve upon the gain and bandwidth, its three layer suspended configuration is proposed. It yields VSWR and axial ratio BW of 60 and 15 MHz, respectively with gain of more than 5 dBi over...
The broadband microstrip antenna is more commonly realized by fabricating the patch on lower dielectric constant thicker substrate. While using thicker substrate, close form expressions for calculating edge extension length due to fringing fields is not available. In this paper, an artificial neural network model for suspended rectangular microstrip antenna is proposed. The resonance frequency calculated...
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