The Slim Jim, similar to the J-pole, is in fact a half wave end fed dipole, in the Slim Jim's case, an end fed folded dipole. As with all folded dipoles, the currents in each leg are in phase, but in the matching stub they in phase opposition, so little or no radiation occurs...
If you are mounting it to a metal pole, care must be taken that the pole does not extend past (above) the aluminum angle. If it does then it will become part of the antenna. I’m also not sure how the antenna would interact with other nearby metallic objects (fence, tower, other a...
während die zweiten Pole der Dipole auf der Oberfläche des Magnetwerkstoffs von der magnetischen Anziehung befestigt und unbeweglich gehalten sind. Die Dipole innerhalb des Magnetwerkstoffs sind konstant streng entlang des geschlossenen Ringkanals ausgerichtet. Das erfolgt dank dem Sättigung...
Generalized oscillator strengths for dipole and octupole 3p → (3d, 4d, 5d), quadrupole and hexadecapole 3p → 4f transitions of argon atomic in the length and velocity formulationsargongeneralized oscillator strengthscorrelation effectsThe generalized oscillator strengths (GOS) of the argon ...
[Incidentally, the total current should be zero ... is it? Yes, for JJbda = JoR(3ks)(27rsds) = 27rkR3, while JKbdl = (-kR2)(27rR) = -27rkR3.] Sincethese currents have cylindrical symmetry, we can get the field by Amperes law: B .27rS = polenc = Po 18 Jb da = 27rk...
t really know how an antenna will perform until you get it in the at. There are times I hear that the J-pole is no different than a dipole or even a ground plane which is not true. This particular antenna has some gain. It’s not as high when compared to the claims of large ...