KR101033817B1 - Clip type sub antenna - Google Patents

Abstract

The present invention relates to a clip-type subantenna, wherein a clip-type subantenna according to the present invention has a feed pad and a ground pad formed at one side edge of a printed circuit board, and a feed unit connected in one-to-one correspondence with the feed pad and the ground pad. And a first connection means formed in a clip form including a grounding portion and a second connection means formed in a clip form on one side surface of the printed circuit board and spaced apart from the first connection means. The second radiator formed by a predetermined pattern at one end of the first connecting means and the first radiator which is formed in a predetermined pattern to interconnect the two connecting means and spaced apart from the first radiator and predetermined in the central portion of the first radiator It is made of a carrier formed in the form.

Therefore, the present invention forms the first and second radiator formed in a predetermined pattern with the first and second connecting means in the form of a clip as an integral conductive conductor pattern, and fixedly coupled in the longitudinal direction of the printed circuit board side to form an antenna mounting space. In addition to the reduction, there is an effect of providing a clip-type sub antenna for miniaturizing and slimming the terminal by forming a carrier having a predetermined shape from a plastic resin having a high dielectric constant in the center of the first radiator.

In addition, the present invention has the effect of providing a clip-type sub-antenna that is easy to be attached to and removed from the printed circuit board by the first and second connecting means of the clip form to improve the antenna characteristics.

Clip type, sub antenna, carrier, conductive conductor pattern, connecting means, radiator, loop

Description

Clip-type subantennae {CLIP TYPE SUB ANTENNA}

The present invention relates to a clip-type subantenna using a limited space inside a mobile communication terminal. More particularly, the clip-shaped connecting means and the radiator of a predetermined pattern are formed of an integral conductive conductor pattern and injection molded from a plastic resin having a high dielectric constant. The present invention relates to a clip-type subantenna attached to a side portion of a printed circuit board having a main circuit of a mobile communication terminal.

1 is a block diagram of a conventional surface mount subantenna for Bluetooth.

As illustrated in FIG. 1, a chip-shaped sub antenna 20 is surface mounted on a printed circuit board 10 of a mobile communication terminal.

However, when the chip-shaped subantenna 20 is surface mounted on the printed circuit board 10 of the mobile communication terminal, the chip-shaped subantenna 20 is formed on the printed circuit board 10 to realize the performance of the subantenna 20. The space from which the ground on which the subantenna 20 is to be mounted is removed is required, and mounting of other electronic components is not possible in the space from which the ground of the printed circuit board 10 is removed.

As described above, the conventional sub antenna 20 built-in method in which the chip-shaped sub antenna 20 is formed on the printed circuit board of the mobile communication terminal further secures a separate space for the antenna mounting space. There is a problem that makes it difficult to miniaturize and slim.

Therefore, the present invention has been made to solve the above problems, the present invention is to form the first and second radiator formed in a predetermined pattern and the first and second connecting means of the clip form as an integral conductive conductor pattern and printed circuit The purpose is to provide a clip-type sub antenna for miniaturizing and slimming a terminal by forming a carrier of a predetermined type from a plastic resin having a high dielectric constant at the center of the first radiator by fixedly coupling in the longitudinal direction of the substrate to reduce the antenna mounting space. have.

In addition, an object of the present invention is to provide a clip-type sub-antenna that is easy to be attached to and detached from the printed circuit board by the first and second connecting means in the form of clips, and improves antenna characteristics.

In order to achieve the above object, a clip-type subantenna according to an embodiment of the present invention includes a feed pad and a ground pad formed at one edge of a printed circuit board, and a feed unit that is connected in one-to-one correspondence with the feed pad and the ground pad. A first connection means formed in the form of a clip, including a ground portion, and a second connection means formed in the form of a clip to be spaced apart from the first connection means and fitted to one side portion of the printed circuit board, and the first connection means; The first radiator which is connected to the second connecting means and formed in a predetermined pattern and the second radiator formed in a predetermined pattern at one end of the first connecting means spaced apart from the first radiator and the central portion of the first radiator It characterized in that the carrier is formed in a predetermined form.

As described above, the present invention is formed by forming the first and the second connecting means of the clip form and the first and second radiators formed in a predetermined pattern as an integral conductive conductor pattern and fixedly coupled in the longitudinal direction of the side surface of the printed circuit board. In addition to reducing the antenna mounting space, there is an effect of providing a clip-type sub antenna for miniaturizing and slimming the terminal by forming a carrier of a predetermined type from a plastic resin having a high dielectric constant in the center of the first radiator.

In addition, the present invention has the effect of providing a clip-type sub-antenna that is easy to be attached to and removed from the printed circuit board by the first and second connecting means of the clip form to improve the antenna characteristics.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a clip-type sub antenna 200 according to an embodiment of the present invention.

Clip-type subantenna 200 formed according to an embodiment of the present invention, the first, second connecting means (210, 220) formed in the form of a clip and the first, second radiator (230, 240) formed in a predetermined pattern and the carrier Consists of 250.

Looking at the structure of the clip-type sub-antenna 200 according to the present invention in more detail, the first connecting means 210 is a feed pad 111 and the ground pad 112 formed on one side edge of the printed circuit board 100 The feeder 211 and the grounding unit 212 which are in one-to-one correspondence with and connected to each other are formed in a clip shape.

The second connecting means 220 is formed in the shape of a clip to be spaced apart from the first connecting means 210 to be fitted to one side portion of the printed circuit board 100.

In this case, each of the first and second connection means is formed as a removable clip of a predetermined shape having a curved surface having an open side at one side, and is wrapped around one side of the printed circuit board.

The first radiator 230 connects the first connecting means 210 and the second connecting means 220 to each other, and the second radiator 240 is spaced apart from the first radiator 230 by a predetermined interval. It is formed on one end of the first connecting means (210).

Here, the first and second connecting means (210, 220) is formed of a conductive pattern and an integral conductive conductor pattern with the first and second radiators (230, 240) formed in a predetermined pattern, the integral conductive conductor pattern is the first and second The resonance frequency band is formed by the total resonance length consisting of the connecting means 210 and 220 and the first and second radiators 230 and 240.

In addition, the resonant frequency band formed in the integrated conductive conductor pattern increases due to the loop structure of the first connecting means 210 having the feed part 211 formed therein.

The carrier 250 is formed in a central portion of the first radiator 230 in a predetermined pattern.

More specifically, the carrier 250 is a plastic resin surrounding the central portion of the first radiator 230 It is formed of an injection molding, and in one embodiment of the present invention has a cavity structure.

In addition, the carrier is formed with a fixing groove on one side edge of the printed circuit board is coupled to the fixing groove by interference fit.

Here, the carrier 250 is injection molded into a plastic resin having a high dielectric constant to reduce the wavelength of the resonant frequency.

Accordingly, the present invention forms the first and second connecting members 210 and 220 in a clip form and the first and second radiators 230 and 240 formed in a predetermined pattern as an integrated conductive conductor pattern, and has a side portion of the printed circuit board 100. It is formed in the longitudinal direction of the antenna mounting space to reduce the center of the first radiator 230 to form the carrier 250 of the plastic resin with a high dielectric constant to provide a clip-type sub-antenna 200 for miniaturizing and slimming the terminal It works.

3 is a configuration diagram in which the clip-type subantenna 200 according to one embodiment of the present invention is fixedly coupled to the printed circuit board 100.

As shown in FIG. 3, the first and second connection means 210 and 220 and the first and second radiators are formed at one side surface of the printed circuit board 100 on which the feed pad 111 and the ground pad 112 are formed. (230,240) and the clip-shaped sub-antenna 200 consisting of the carrier 250 is coupled in the longitudinal direction.

In this case, the clip-type subantenna 200 is attached to one side surface of the printed circuit board 100 by first and second connecting means 210 and 220 formed of the removable clip, and the carrier 250 is a printed circuit board. Combine with the fixing groove 113 and the interference fit formed on one side edge of the (100).

As such, the clip-shaped subantenna 200 is connected to the first and second connection means 210 and 22 formed by the clip and the carrier 250 is coupled to the printed circuit board 100 by interference fit. It is fixed to one side of the printed circuit board 100 to prevent deformation caused by external factors.

4A and 4B are graphs showing antenna gains before and after an embodiment of the present invention is applied.

In one embodiment of the present invention, the resonance frequency at which the first and second connection means 210 and 220 are formed in the conductive conductor pattern integrated with the first and second radiators 230 and 240 is, for example, 2.44 GHz. It is preferable.

Due to the loop structure formed on the first connecting means 210, the resonance frequency band formed on the integrated conductive conductor pattern increases.

As shown in FIG. 4A, before the embodiment of the present invention is applied, the conventional subantenna 20 exhibits an antenna characteristic having a value of -6.43 dB as an antenna gain (3D Gain) value at 2.44 GHz.

On the other hand, as shown in Figure 4b, the clip-shaped sub-antenna 200 after the embodiment of the present invention is applied has an antenna characteristic having a value of -6.07dB as the antenna gain (3D Gain) value at 2.44GHz.

As such, it can be seen that the loop structure formed on the first connection means 210 has an effect on the resonance frequency bandwidth and the antenna gain formed on the integrated conductive conductor pattern, thereby improving antenna characteristics according to the present invention.

As described above, the present invention forms the first and second connecting means (210,220) and the first and second radiators (230,240) formed in a predetermined pattern in the form of an integral conductive conductor pattern and the longitudinal direction of the printed circuit board side portion Fixed to the antenna to reduce the mounting space and to form the carrier 250 from the plastic resin of a predetermined shape having a high dielectric constant in the center of the first radiator 230 to provide a clip-type sub-antenna 200 for miniaturizing and slimming the terminal It is effective.

In addition, the present invention is an effect of providing a clip-type sub-antenna 200 that is easy to be detached to the printed circuit board 100 by the first and second connecting means (210,220) in the form of a clip, as well as improve the antenna characteristics. There is.

The present invention has been described in detail so far, but the embodiments mentioned in the process are only illustrative and are not intended to be limiting, and the present invention is provided by the following claims. Within the scope not departing from the scope of the present invention, changes in the components that can be coped evenly will fall within the scope of the present invention.

1 is a configuration diagram of a conventional subantenna

2 is a block diagram of a clip-type subantenna according to an embodiment of the present invention;

3 is a configuration diagram in which a clip-type subantenna is fixedly coupled to a printed circuit board according to a temporary embodiment of the present invention.

Figure 4a is a graph showing the antenna gain before applying an embodiment of the present invention

Figure 4b is a graph showing the antenna gain after one embodiment of the present invention is applied

* Description of the main drawing codes *

10,100: printed circuit board 20: chip-shaped sub-antenna

200: clip-type sub-antenna 111: feeding pad

112: grounding pad 113: fixing groove

210: first connecting means 211: feeding part

212: ground portion 230: first radiator

240: second radiator 250: carrier

Claims (6)

A first connection means having a feed pad and a ground pad formed on one side edge of the printed circuit board, the feed pad and a ground part including a feed part and a ground part connected in one-to-one correspondence with the feed pad and the ground pad; Second connecting means formed in a clip shape to be spaced apart from the first connecting means and fitted to one side portion of the printed circuit board; A first radiator which interconnects the first connecting means and the second connecting means and is formed in a predetermined pattern; A second radiator formed in a predetermined pattern on one end of the first connecting means spaced apart from the first radiator by a predetermined distance; And Clip sub-antenna characterized in that the carrier is formed in the central portion of the first radiator in a predetermined shape. The method according to claim 1, wherein the first and second connecting means, Clip sub-antenna is formed in a conductive conductor pattern integral with the first and second radiators. The method according to claim 2, wherein the first and second connecting means, Clip sub-antenna characterized in that each side is formed of a removable clip of a predetermined form consisting of a curved surface of the open loop structure is wrapped around one side of the printed circuit board. The method of claim 2, wherein the integrated conductive conductor pattern, Clip sub-antenna characterized in that the resonant frequency band is formed by the total resonant length consisting of the first and second connecting means and the first and second radiators. The method according to claim 1, wherein the carrier, Plastic resin surrounding the central portion of the first radiator Clip-type sub-antenna characterized in that formed by injection molding. The method according to claim 1 or 5, wherein the carrier, Clip-type sub-antenna, characterized in that the fixing groove is formed on one side edge of the printed circuit board coupled to the fixing groove by interference fit

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