Phase Progression of a Radiation Field From Circular and Square Active Regions

The radiation generated by the current in an active region (ACT-R), specified propagation phase constant $\beta $ , is investigated with special interest its progression (PhasProg). ACT-R modeled circular and square loops, classified into two types: a right-handed positive left-handed negative . Firstly, of length $n$ guided wavelengths formulated. It found that, at any depression angle $\theta PhasProg respect to azimuth $\phi downward-sloping for upward-sloping ACT-R. These PhasProgs have perfectly linear change $360n$ degrees ( $n =1$ 2) Secondly, When $k_{0}/\vert \beta \vert $k_{0}$ being free-space constant, be ACT-R, quasi-linear Thirdly, formulated numerical expressions are compared simulated results obtained using natural metaloop antennas, reasonable agreement between these observed. Fourthly, comment made on singular phenomenon =2$ example where $k_{0}/\beta