Calculation of Loop Antennas with Reactive Loads

Wire curvilinear antennas with impedance elements

“…For expansion of computer programs capabilities is offered to approximate the any curvilinear loop back and dipole antennas not only rectilinear pieces, but also curves of higher order, namely modernized Cassiny's oval (modern-oval), that considerably will expand a scope of the given method stated in [1][2][3][4][5][6][7]. Special cases of a modern-oval are usual Cassiny's oval and a lemniscate, the ellipse and a circle.…”

“…These imperfections are substantially eliminated by insertions in wires of antennas of the concentrated or distributed impedances or reactances. For the solution of these problems, since 1972 th year the collective of scientists of the Dnepropetrovsk state university and Design office "Yuzhnoe" has developed, approved and has published [1][2][3][4][5] method of calculation the any curvilinear antennas with the concentrated impedance elements. Calculation was spent by the solution in strict statement of the integral equation Fredgolm's of the 1-st kind concerning distribution of a complex current to wires of the antenna with the subsequent definition of its all parameters.…”

“…Computer program have name DISTRIBUTION. As follows from later foreign publications, and also apparently from widely known foreign computer programs: ELNEC, EZNEC, NEC4WIN, SuperNEC, MMANA, etc., corresponding to these publications, ideas and the results stated in work [1][2][3][4][5] have received wide development and distribution in the world. Unfortunately, the scope mentioned above computer programs is limited by an opportunity of approximation set for calculation curvilinear antennas only wire rectilinear pieces (segments) of wires.…”