vertical dipole antennafield patternLossy half-spaceSommerfeld’s integralThe field pattern of the vertical dipole antenna (VDA) placed above a homogenous and isotropic medium is determined in this paper. The unknown current distribution (UCD) on the antenna is evaluated by solving the system of ...
1) double vertical dipole antenna 双(垂直)半波振子天线 2) Half-wave diople antenna 半波振子天线 3) vertical antenna 垂直天线 1. A more integrated measurement method is proposed according to the electric parameters definition of airborne radio compassvertical antennaand its practical application. ...
This pattern is over real earth, where a conventional dipole has about 8 to 8.5 dBi gain. This antenna about -2 dBd gain maximum. It has negative gain over a dipole. The gain over a dipole at mostuseful anglesfor DX is about -10 dB...significant negative gain. Optimum feed line lengt...
RF Toolbox is an antenna design and electronics/electrical tool package. It takes you step by step through the design of the following types of antennas: Dipole Fat Dipole Yagi J-Pole Super J-Pole Log Periodic Cubic Quad Vertical helical It...
plasmon originates predominantly from the short-range Coulomb interactions of higher-order modes, yielding a larger spectral shift in response to the equal gap distance changes in the small gap distance regime, compared to the weaker long-range dipole-dipole interaction in the dimer antenna case19....
A circularly polarized antenna system adapted to provide a desired radiation pattern about a support mast using four horizontal radiating elements spaced at 90° intervals about the support mast and by four vertically polarized dipoles with each vertical dipole mounted vertically spaced from the four ho...
The vertical dipole antenna is suitable for both commercial and amateur radio operation. It has a feed line extending orthogonally inside a tubular metal sleeve. The line upper end carries a protruding upper conductor of quarter wave-length. The upper end of the metal sleeve carries a lower ...
Asymmetrical Hatted Vertical Dipole Antenna, etcHowes, RayOntario Mathematics Gazette
The computations have been undertaken in the far field zone for various antenna parameters and compared to rigorous numerical model. Provided the field radiated from the vertical dipole is determined, whole body average Specific Absorption Rate (SARWB) is computed in a simple ...
J. A. Kuecken, Center fed vertical dipole antenna, United States patent, April, 1969.US3438042 * 1966年3月3日 1969年4月8日 Gen Dynamics Corp Center fed vertical dipole antennaUS3438042 * Mar 3, 1966 Apr 8, 1969 Gen Dynamics Corp Center fed vertical dipole antenna...