TWI677137B - Antenna apparatus - Google Patents

Abstract

An antenna device includes an antenna element and a connector. The antenna element includes a first radiating metal layer and a supporting medium. The first radiating metal layer has a signal feeding end. The supporting medium is made of a non-conductive material and has a recessed surface. The recessed surface A volume chamber is defined around, and the signal feeding end is located on the inner wall of the volume chamber. The connector is used to electrically connect the antenna element to transmit radio frequency signals, and includes a signal pin and a first ground pin, and the signal pin is used to be disposed in the receiving chamber of the antenna element and communicate with the antenna element. The signal feeding end is physically contacted and electrically connected, and the signal pin and the first ground pin are respectively used to transmit positive and negative electrical signals.

Description

Antenna device

The present invention relates to an antenna device including an antenna element, and more particularly to a thin antenna device.

Referring to FIG. 1, a conventional antenna device includes an antenna element 11 and a connector 12. The antenna element 11 includes a printed circuit board 111 made of glass fiber and a radiating metal layer 112. The printed circuit board 111 has a plane 1111, and the radiating metal layer 112 is printed on the plane 1111. The connector 12 includes a first fastener 121, a second fastener 122, and a coaxial cable 123. The first fastener 121 is soldered on the plane 1111 of the printed circuit board 111, and the second fastener 122 is used to connect to the coaxial cable 13 and is fastened with the first fastener 121.

One disadvantage of this known technique is that the first fastener portion 121 is soldered to the plane 1111 of the printed circuit board 111, so the thickness of the overall antenna device is the thickness h1 of the printed circuit board 111, the radiating metal The thickness h2 of the layer 112 and the thickness h3 of the solder after the first fastener 121 and the second fastener 122 are fastened, so that the thickness of the overall antenna device H = h1 + h2 + h3 increases, which does not meet the current thin type. Demand for products.

In addition, another disadvantage of this known technique is that since the first fastener 121 and the fixing solder project from the plane 1111 of the printed circuit board 111, it is easy to be pulled by the stress and slide off, causing signal interruption.

Since the known antenna device has the aforementioned problems, it is necessary to develop an antenna device that is thinner and more durable than the known technology to solve the problems of the known technology.

The antenna device of the present invention includes an antenna element and a connector.

The antenna element includes a first radiating metal layer and a supporting medium. The first radiating metal layer has a signal feeding end. The supporting medium is made of a non-conductive material and has a recessed surface. The recessed surface An accommodating chamber is defined around the opening, and the signal feeding end is located on the inner wall of the accommodating chamber.

The connector is used to electrically connect the antenna element to transmit radio frequency signals, and includes a signal pin and a first ground pin, and the signal pin is used to be disposed in the receiving chamber of the antenna element and communicate with the antenna element. The signal feeding end is physically contacted and electrically connected, and the signal pin and the first ground pin are respectively used to transmit positive and negative electrical signals.

The effect of the present invention is that the signal pin is used to be disposed in the receiving chamber of the antenna element, so the signal pin does not increase the thickness of the antenna device of the present invention. In addition, the receiving chamber also has a signal pin. Advantages, avoid problems such as poor contact or falling off in known technology.

11‧‧‧antenna element

111‧‧‧printed circuit board

1111‧‧‧plane

112‧‧‧ Radiation metal layer

12‧‧‧ connector

121‧‧‧First Fastener

122‧‧‧Second Fastener

123‧‧‧Coaxial cable

h1 ~ h3‧‧‧thickness

2‧‧‧antenna element

21‧‧‧Supporting medium

211, 212‧‧‧ plate surface

213‧‧‧ recessed surface

214‧‧‧surrounding the wall

215‧‧‧ sidewall

216‧‧‧Capacity Room

217‧‧‧Slot

2171‧‧‧The first slot room

2172‧‧‧Second Slot Room

218‧‧‧ open groove

2181‧‧‧First groove chamber

2182‧‧‧Second groove chamber

22‧‧‧ the first radiation metal layer

221‧‧‧ signal feed end

23‧‧‧Second radiation metal layer

24‧‧‧ the first ground terminal

25‧‧‧Second ground terminal

3‧‧‧ connector

31‧‧‧Signal pin

32‧‧‧ the first ground pin

33‧‧‧Second ground pin

34‧‧‧first fixed foot

35‧‧‧Second fixing foot

Figure 1 is a schematic diagram of a known technique.

FIG. 2 is a schematic diagram illustrating an embodiment of the antenna device of the present invention.

FIG. 3 is another schematic diagram, which is an inversion of the embodiment to assist the description of FIG. 2.

FIG. 4 is a schematic diagram of a connector of the antenna device of the present invention.

Referring to FIG. 2 and FIG. 3, an embodiment of an antenna device according to the present invention includes an antenna element 2 and a connector 3.

The antenna element 2 includes a supporting medium 21, a first radiating metal layer 22, a second radiating metal layer 23, a first ground terminal 24, and a second ground terminal 25.

The supporting medium 21 is made of a non-conductive material. In this embodiment, it is generally plate-shaped, and a plastic material with a dielectric coefficient between 1.5 and 3 is selected for injection molding, and This plastic material is suitable for forming a tightly attached metal layer on any of its surfaces.

The supporting medium 21 has two spaced-apart plate surfaces 211 and 212, a recessed surface 213, a surrounding wall 214 and a side wall 215.

The recessed surface 213 is connected to the plate surface 211, and the recessed surface 213 surrounds a receiving chamber 216 defining an opening. The surrounding wall 214 defines a slot 217 penetrating the supporting medium 21, the side wall 215 defines an open groove 218 penetrating the supporting medium 21, and the slot 217, the receiving chamber 216, and the open groove The three 218 are adjacent to each other at intervals, and the receiving chamber 216 is generally located between the open groove 218 and the slot 217.

The first radiating metal layer 22 and the second radiating metal layer 23 are adjacent to each other at intervals and are located on the plate surfaces 211 and 212, respectively. The first radiating metal layer 22 has an inner wall located in the receiving chamber 216. The signal is fed into the end portion 221. The first ground end portion 24 is located in the surrounding On the wall 214, the second ground end portion 25 is located on the side wall 215 of the supporting medium 21, and the second radiating metal layer 23 is electrically connected to the first ground end portion 24 and the second ground end portion 25.

Referring to FIGS. 2 and 4, the connector 3 is used to electrically connect the antenna element 2 to transmit radio frequency signals, and includes a signal pin 31, a first ground pin 32, a second ground pin 33, and a first fixed pin. 34 and a second fixed foot 35.

The signal pin 31 is configured to be disposed in the receiving chamber 216 of the antenna element 2 and is in physical contact with the signal feeding end 221 of the antenna element 2 to be electrically connected. The signal pin 31 and the first ground pin 32 are electrically connected. The first ground pin 32 and the second ground pin 33 are electrically connected to transmit positive and negative electrical signals (RF signals with a phase difference of 180 degrees), and are used to transmit electrical signals of the same phase.

The first grounding pin 32 and the second grounding pin 33 of the connector 3 are used to physically contact and electrically connect the first grounding end portion 24 and the second grounding end portion 25 of the antenna element 2, respectively, and further electrically connect the Two radiating metal sheets 23 (see Fig. 3). In this preferred embodiment, the antenna element 2 is a coaxial coaxial antenna (Coaxial antenna, CoCo antenna), but is not limited thereto. For example, it may be a monopole antenna or a dual dipole antenna. .

The first fixing leg 34 and the second fixing leg 35 of the connector 3 enable the connector 3 to be fixed on the supporting medium 21. The fixing method is to extend and fix the first fixing leg 34 to the slot. The slit 217 extends through the second fixing leg 35 and is fixed to the opening groove 218. More specifically, the slot 217 has a first slot chamber 2171 and a second slot chamber 2172 communicating with each other, and the first slot chamber 2171 is wider than the second slot chamber 2172. When the connector 3 is to be fixed on the supporting medium 21, the first fixing leg 34 is first inserted into the first slot chamber 2171 and slides to the second slot chamber 2172 to be fixed. Approximately, the open groove 218 has a phase A first groove chamber 2181 and a second groove chamber 2182 are communicated with each other, and the first groove chamber 2181 is wider than the second groove chamber 2182. When the connector 3 is fixed on the supporting medium 21 At this time, the second fixing foot 35 first penetrates the first groove chamber 2181 and slides to the second groove chamber 2182 for fixing.

In summary, the above embodiment has the following advantages: 1. As the present invention has designed the receiving chamber 216 in the supporting medium 21 of the antenna element 2, the signal pin 31 of the connector 3 is partially or completely built in In the receiving chamber 216, the thickness of the antenna element 2 plus the connector 3 can be reduced. 2. The accommodating chamber 216 also has the effect of fixing the signal foot 31 of the connector 3, so as to prevent it from being slipped and shifted to the outside of the accommodating chamber 216 due to external force, resulting in poor assembly work or sliding off. 3. The present invention further designs the first ground end portion 24 and the second ground end portion 25 of the antenna element 2 on the surrounding wall 214 and the side wall 215 of the supporting medium 21, instead of the plate surfaces. On 211 and 212, the first ground pin 32 and the second ground pin 33 of the connector 3 can also be partially embedded in the slot 217 and the open groove 218, so the antenna element 2 can also be reduced. The thickness of the entire antenna device after the connector 3 is assembled (the thickness of the antenna element 2 plus the thickness of the connector 3 overlaps).

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (9)

An antenna device includes: an antenna element including a first radiating metal layer and a supporting medium, the first radiating metal layer having a signal feeding end, the supporting medium being made of a non-conductive material and having a A recessed surface, and the recessed surface defines a receiving chamber with an opening, the signal feeding end is located on the inner wall of the receiving chamber; and a connector for electrically connecting the antenna element to transmit a radio frequency signal, and The signal pin includes a signal pin and a first ground pin, and the signal pin is used to be disposed in the receiving chamber of the antenna element, and is in physical contact with the signal feeding end of the antenna element to be electrically connected. The first ground pin is used for transmitting positive and negative electrical signals respectively, and the supporting medium also has a surrounding wall, the surrounding wall defines a slot penetrating the supporting medium, and the slot is adjacent to the receiving space at intervals. The antenna element further includes a second radiating metal layer and a first ground end portion. The second radiating metal layer and the first radiating metal layer are adjacent to each other at a distance from each other, and the first ground end portion is located on the surrounding wall. On and with A first ground pin electrically second radiating metal plate and the connector is connected. The antenna device according to item 1 of the scope of patent application, wherein the supporting medium further has a side wall, the side wall defines an open groove penetrating the supporting medium, and the open groove, the accommodating chamber, and the slot The three are adjacent to each other at intervals, the receiving chamber is generally located between the open groove and the slot, the antenna element further includes a second grounding end, the connector further includes a second grounding pin, and the first The two ground ends are located on the side wall of the supporting medium, and are used to be in physical contact with the second ground pin of the connector to be electrically connected, and the first ground pin and the second ground pin are electrically connected to transmit the same phase. Electrical signal. The antenna device according to item 2 of the scope of patent application, wherein the connector further includes a first fixing leg for extending and fixing to the slot, so that the connector is fixed on the supporting medium. According to the antenna device of claim 3, the connector further includes a second fixing leg for extending and fixing to the open groove, so that the connector is fixed on the supporting medium. According to the antenna device of claim 3, wherein the slot has a first slot chamber and a second slot chamber which are communicated with each other, and the first slot chamber is wider than the second slot chamber, When the connector is to be fixed on the supporting medium, the first fixing foot is first penetrated into the first slot chamber and slides to the second slot chamber for fixing. The antenna device according to item 4 of the patent application, wherein the open groove has a first groove chamber and a second groove chamber which are communicated with each other, and the first groove chamber is wider than the second groove chamber. When the connector is to be fixed on the supporting medium, the second fixing foot is first penetrated into the first groove chamber and slides to the second groove chamber for fixing. The antenna device according to item 1 of the scope of patent application, wherein the supporting medium is substantially a plate shape, and further includes two spaced-apart plate surfaces, the first radiation metal layer and the second radiation metal layer are respectively located on the plates Surface. The antenna device according to item 1 of the patent application scope, wherein the supporting medium is made of plastic injection molding. According to the antenna device of claim 8, the dielectric constant of the supporting medium is between 1.5 and 3.