JPS6088613U - antenna - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Figure 1 is a schematic diagram of a conventional small antenna for VHF low frequency range, Figure 2 is a frequency characteristic diagram of the antenna in Figure 1, Figure 3 is a schematic diagram of another conventional small antenna for positive low frequency range, 4 figure 3
Figure 5 is a schematic diagram of one embodiment of the antenna according to the invention, Figure 6 is an equivalent circuit diagram of the same embodiment, Figure 7 is a frequency characteristic diagram of the same embodiment, and Figure 8 is a frequency characteristic diagram of the antenna shown in the figure. The figure is a directional characteristic diagram of the same embodiment. 10... Ferrite core, 12... Winding wire, 16...
・Copper foil (metal body), 20... intermediate tap. , 140 42 43 4 u μ 47 4g 49
jll-kawa di, & (MHz)-fs mouth

Claims (1)

[Scope of utility model registration request] A winding is wound around the outer periphery of a rod-shaped ferrite core, a metal body is provided parallel to the ferrite core at a distance so as to be distributed and coupled to the winding, and one end of the winding is connected to the metal body. and the other end is open, an intermediate tap is provided in the middle of the winding, and the intermediate tap and one end of the winding connected to the metal body are used as power feeding terminals.