Connection device and reception device
A connection device includes a rod-shaped electrode, a plurality of cylindrical electrodes through which the rod-shaped electrode passes, the plurality of cylindrical electrodes being sequentially exposed on a surface in order from a front end side of the rod-shaped electrode, an insulation section configured to insulate the rod-shaped electrode and the plurality of cylindrical electrodes from each other, and a plurality of connection terminals electrically connected to the rod-shaped electrode and the plurality of cylindrical electrodes in a vicinity of a rear end of the rod-shaped electrode, the plurality of connection terminals being protruded from a rear side.
1. A connection device, comprising:
a rod-shaped electrode;
a plurality of cylindrical electrodes through which the rod-shaped electrode passes, the plurality of cylindrical electrodes being sequentially exposed on a surface in order from a front end side of the rod-shaped electrode;
an insulation section configured to insulate the rod-shaped electrode and the plurality of cylindrical electrodes from each other; and
a plurality of connection terminals electrically connected to the rod-shaped electrode and the plurality of cylindrical electrodes in a vicinity of a rear end of the rod-shaped electrode, the plurality of connection terminals being protruded from a rear side, wherein the connection terminals are connected to a conductor pattern on a wiring substrate and establish a connection with an external unit through the wiring substrate, and wherein the wiring substrate is located at the rear end of the rod-shaped electrode.
2. The connection device according to claim 1 ,
wherein three or more cylindrical electrodes are provided, and
wherein four or more connection terminals that are electrically connected to the rod-shaped electrode and the cylindrical electrodes are led out.
3. The connection device according to claim 1
wherein the wiring substrate is either one of a rigid substrate, a flexible substrate, and a rigid flexible substrate.
4. The connection device according to claim 1
wherein a cable configured to function as an antenna is connected through the wiring substrate.
5. The connection device according to claim 1
wherein a cable configured to function as an antenna and an audio signal transmission cable are connected through the wiring substrate.
6. The connection device according to claim 1
wherein the connection terminals are each inserted into a hole formed in the wiring substrate.
7. The connection device according to claim 1 ,
wherein the plurality of cylindrical electrodes are led out as the connection terminals through extension electrodes, and
wherein intervals between the extension electrodes are substantially equal to each other in a cross-sectional direction.
8. The connection device according to claim 1 ,
wherein a first pair of the rod-shaped electrode and one of the cylindrical electrodes adjacent to the rod-shaped electrode, and a second pair of two cylindrical electrodes form two high-frequency signal transmission paths.
9. The connection device according to claim 8 ,
wherein the connection terminals are connected to a conductor pattern on a wiring substrate, and two coaxial wires corresponding to the two high-frequency signal transmission paths are connected to the conductor pattern.
10. A reception device to which a connection device is capable of being connected,
wherein the connection device includes
a rod-shaped electrode,
a plurality of cylindrical electrodes through which the rod-shaped electrode passes, the plurality of cylindrical electrodes being sequentially exposed on a surface in order from a front end side of the rod-shaped electrode,
an insulation section configured to insulate the rod-shaped electrode and the plurality of cylindrical electrodes from each other, and
a plurality of connection terminals electrically connected to the rod-shaped electrode and the plurality of cylindrical electrodes in a vicinity of a rear end of the rod-shaped electrode, the plurality of connection terminals being protruded from a rear side, wherein the connection terminals are connected to a conductor pattern on a wiring substrate and establish a connection with an external unit through the wiring substrate, and wherein the wiring substrate is located at the rear end of the rod-shaped electrode.
11. The reception device according to claim 10 ,
wherein first and second high-frequency signals are obtained from two terminals among the plurality of connection terminals through capacitors.
12. The reception device according to claim 10 ,
wherein two terminals among the plurality of connection terminals are connected to a high-frequency attenuation element and the two terminals are configured as first and second audio signal terminals.