KR101664506B1 - Unified antenna for shark fin type - Google Patents

Abstract

A base on which a printed circuit board and a plurality of antenna units are installed; A case covering the base; A first antenna unit installed on the base; And an upper portion provided on the first antenna unit and extending upwardly along an inner circumferential surface of the case to improve the electrical characteristics of the first antenna unit and to prevent the performance degradation of the other antenna unit by forming a plurality of mesh- A shank pin integrated antenna including a first sub-unit to which a first sub-unit is connected is disclosed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shank pin integrated type antenna,

The present invention relates to a shark pin integrated antenna, and more particularly, to a shark pin integrated antenna, in which an auxiliary unit which contacts an antenna unit is arranged within an applicable range of a space inside a shark pin type antenna, The present invention relates to a shark pin integrated antenna capable of realizing an antenna with a relatively small size and being capable of receiving signals of various bands smoothly with good gain and radiation pattern conditions of the antenna.

A helical antenna that can receive the radio configured in the vehicle was generally used in the vehicle.

 Here, the conventional helical antenna has a spiral coil-like structure so that resonance may occur at the length (? / 4) of the antenna. Such a helical antenna resonates at a specific frequency depending on the length and pitch.

 However, as the resonance occurs at a specific frequency of a single band, the helical antenna is very difficult to have resonance at another resonance frequency desired by the user.

 That is, in the case of the conventional helical antenna, it is possible to perform the first resonance, but it is difficult to cause the second resonance at the desired frequency, so that there is a problem that the two frequencies can not be selectively received.

 In addition, it is difficult to perform tuning and error occurs largely, and there is a lot of loss at the return value of the resonance frequency, and when the coil is injected by the insert injection method, there is a problem that the tuning state is deformed, there was.

 In recent years, as various services such as mobile communication have been commercialized, the development of such new electronic products and equipments to which the mobile communication technology is applied are also provided in vehicles.

 In addition, electronic products for new applications such as a car internet, a TV receiver, a navigation system, and a DMB (Digital Multimedia Broadcasting) are being developed in order to meet various needs of consumers.

 In other words, conventionally, the function of a vehicle merely provides mobility to the consumer, but recently, the concept of providing safe, comfortable and efficient transportation means has been developed.

 Accordingly, there is a demand for an antenna system for a new use for a variety of wireless services provided in a vehicle such as the above-mentioned vehicle Internet, TV reception, navigation system, and DMB (Digital Multimedia Broadcasting). Due to the development of information communication technology, Complexity is becoming more and more complex.

 However, in the conventional antenna system for a car, reception antennas for various wireless services are individually configured according to respective wireless services.

 The installation of individual antennas according to each wireless service has a fundamental problem such as an increase in installation limit and installation cost in a limited space of a vehicle. Also, in an environment in which a high-speed movement such as a vehicle is frequently encountered in an obstacle area, it was necessary to receive an electric signal more stably.

However, in the related art, there has been a problem in that it can not actively cope with the radio wave disturbance by using only the vertically formed antenna in receiving the electric signal through the antenna.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

SUMMARY OF THE INVENTION It is an object of the present invention to dispose an auxiliary unit in contact with an antenna unit within an applicable range of an inner space of a shank pin type antenna, The antenna can be realized in a comparatively small size, and the gain and radiation pattern conditions of the antenna are good, so that signals of various bands can be received smoothly.

It is still another object of the present invention to provide an antenna unit in which a structure of a helical antenna, a patch, a ceramic, a dipole and a pattern are formed and various combinations thereof are provided, And to provide a shark pin integrated antenna capable of flexibly responding to reception of signals of different bands depending on the area.

It is still another object of the present invention to provide a shark pin integrated antenna that can increase the productivity of a product with a simple internal structure and a compact configuration.

According to an aspect of the present invention, there is provided a shark fin integrated antenna comprising: a base having a printed circuit board and a plurality of antenna units; A case covering the base; A first antenna unit installed on the base; And an upper portion provided on the first antenna unit and extending upwardly along an inner circumferential surface of the case to improve the electrical characteristics of the first antenna unit and to prevent the performance degradation of the other antenna unit by forming a plurality of mesh- And a second sub-unit.

A second antenna unit installed on the base; And a second sub unit provided on the second antenna unit and extending upwardly and having an upper end extending along the inner circumferential surface of the case and having a plurality of mesh-shaped openings to prevent performance degradation of the other antenna unit .

The first antenna unit may receive a signal of a radio band and the second antenna unit may be provided behind the first antenna unit to receive a signal of a DMB band.

A third antenna unit for receiving a GPS band signal may be provided on the base in front of the first antenna unit.

The first subunit extends upward from the upper end of the first antenna unit, and the upper end of the first subunit is formed as a roof having a shape covering the first antenna unit along the inner circumferential surface of the case, can do.

The first sub-unit may be formed of an electrically conductive metal material and the upper end thereof may be formed to correspond to the inner circumferential surface of the case through folding.

The first antenna unit may include a coil wound around an outer surface of a cradle and the cradle, and the cradle may be formed of at least one of polyoxymethylene or acetyl polymer or ABS (Acrylonitrile Butadiene Styrene) resin or PC (PolyCarbonate) .

The second antenna unit is formed of a glass epoxy substrate on which an antenna pattern is formed and may be provided to receive Terrestrial Digital Multimedia Broadcasting (TDMB), HSDPA or DAB III (Digital Audio Broadcasting Band III), and a DAB-L signal or a GMS signal .

According to the present invention, by arranging the auxiliary unit in contact with the antenna unit within the applicable range of the inner space of the shark fin type antenna and forming the mesh-shaped opening in the auxiliary unit, the antenna can be realized in a comparatively small size And the gain of the antenna and the radiation pattern condition are good, so that signals of various bands can be smoothly received.

 In addition, since the antenna unit is provided with a helical, patch, ceramic, dipole, and patterned substrate structure and various combinations thereof, the shapes of the antenna unit and the auxiliary unit are variously provided. It is possible to flexibly respond to signal reception.

In addition, the mass productivity of the product can be increased with a simple internal structure and a compact configuration.

1 is an exploded perspective view of a shark pin integrated antenna according to the present invention;
FIG. 2 is a perspective view showing an internal configuration of a shark pin integrated type antenna according to the present invention. FIG.
FIG. 3 is a graph illustrating the measurement and comparison of gains of the integrated antenna, the standard antenna, and the micro antenna according to the present invention.
4 (a), 4 (b) and 4 (c) are graphs showing the radiation characteristics and gains of the standard antenna, the micro antenna, and the shark pin integrated antenna of the present invention.

Hereinafter, a shark fin integrated antenna according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a perspective view illustrating an internal configuration of a shark pin integrated type antenna according to the present invention. FIG. 3 is a perspective view illustrating an integrated antenna according to the present invention, a standard antenna, (A), (b), and (c) are graphs showing measured radiation characteristics and gain for each band of a standard antenna, a micro antenna, and a shark pin integrated antenna of the present invention. to be.

 1 to 4, a shark pin integrated type antenna according to the present invention includes a pad 20 and a mounting space for a printed circuit board 12 and a plurality of antenna units disposed on the upper surface of the pad 20 A shark pin integrated antenna comprising a base (10) for covering the pad (20) and a base (10) covering the base (10) A first antenna unit (40) provided so as to be able to receive a signal; A second antenna unit 50 disposed at a rear end of the first antenna unit 40 and capable of receiving a signal of a DMB (Digital Multimedia Broadcasting) band; And a third antenna unit 70 disposed at a front end of the first antenna unit 40 and capable of receiving signals in a global positioning system (GPS) band. The first antenna unit 40, A first auxiliary unit 60 for improving the electrical characteristics of the first antenna unit 40 is disposed on the first auxiliary unit 60 and a plurality of mesh openings 62 are formed in the first auxiliary unit 60 do.

 1, the shark fin integrated antenna according to the present invention may be provided in a shape such that the shark fin is reminiscent of the shark fin as shown in FIG. 1, and may have a size of about 160 mm in length, 68 mm in height, and 80 mm in width.

 1 and 2, the first antenna unit 40 is a component for receiving a signal of a radio frequency band. The first antenna unit 40 includes a cradle, a coil wound around the outer surface of the cradle, A protruding extension may be provided and a protruding portion for contacting with the auxiliary unit 60, which will be described later, may be provided.

 Here, the cradle is fixed to the base 10 by a bolt, and the coil is wound several to several tens of times along the body of the cradle to receive a signal in the radio band.

 The holder may be made of a synthetic resin material having a dielectric constant higher than a certain level, and is preferably made of polyoxymethylene (POM) or an acetal polymer or an acrylonitrile butadiene styrene (ABS) And a PC (poly carbonate) resin.

 Here, since the cradle has different dielectric constants depending on the material, the height and width of the cradle can be different according to the material. Depending on the configuration of the cradle, the characteristics of the first antenna unit 40, that is, , The gain and bandwidth of the antenna can be displaced.

 In addition, the coil may be formed of various metal materials through which electrical signals are conducted, and may be formed of any one of copper or steel use stainless steel (SUS).

 The first antenna unit 40 may be a glass epoxy substrate on which an antenna pattern is formed and may be provided on the printed circuit board 12 in a standing manner.

 In this case, the glass epoxy substrate and the antenna pattern serve to receive signals in the radio band, and the performance of the signal reception ratio is determined according to the length of the antenna pattern formed on the glass epoxy substrate.

 Further, the first antenna unit 40 may be provided with two glass epoxy substrates, and the two glass epoxy substrates may be arranged so as to be spaced apart from each other by a predetermined distance, thereby receiving signals in the radio band.

 A first auxiliary unit 60 for improving the electrical characteristics of the first antenna unit 40 may be disposed on the first antenna unit 40.

 The first subunit 60 is a component for contacting the first antenna unit 40 to improve the reception performance of the first antenna unit 40. The first antenna unit 40 is a component And extends the length of the first antenna unit 40 so that the first antenna unit 40 can be resonated with a longer length.

 1 and 2, a plurality of openings 62 provided in a mesh form are formed in the first subunit 60 so that the electrical characteristics of the first antenna unit 40, for example, Thereby improving the gain, directivity, bandwidth, and the like, and preventing the receiving performance of the second antenna unit 50 and the third antenna unit 70, which will be described later, from deteriorating.

 Also, the first auxiliary unit 60 can be easily fixed to the inner circumferential surface of the case 30 through the thermal fusion process by the opening 62.

 1 and 2, the first subunit 60 is disposed in proximity to the upper portion of the first antenna unit 40 and is provided in a shape corresponding to the inner circumferential surface of the case 30 .

 This is to improve the receiving performance of the first antenna unit 40 by increasing the area of the first subunit 60 within the applicable range of the inner space of the antenna. As shown in FIGS. 1 and 2, And may be provided in a shape corresponding to the inner circumferential surface of the case 30 so as to improve the electrical characteristics of the first antenna unit 40. [

 The first sub-unit 60 can be easily fixed to the inner circumferential surface of the case 30 by a thermal fusion process using the open portion 62 to increase the mass productivity of the product assembly, And may be made of aluminum.

 The first auxiliary unit 60 may be formed in a circular or polygonal shape with respect to a plane and may be formed to have a shape corresponding to the inner circumferential surface of the case 30 through folding and may be fixed to the inner circumferential surface of the case 30. [ have.

 Here, the structure and the shape of the first sub-unit 60 are not limited to those shown in FIGS. 1 and 2, and a desired reception band may be provided within a geometrical range that can be fixed along the inner circumferential surface of the case 30. [ And may be provided in various shapes depending on performance.

 The second antenna unit 50 is a component for receiving a signal of a DMB (Digital Multimedia Broadcasting) band. As shown in FIGS. 1 and 2, the second antenna unit 50 is provided with a glass epoxy substrate on which an antenna pattern is formed, And can be placed on the printed circuit board 12 at the rear end of the antenna unit 40. [

 The second antenna unit 50 may be a terrestrial digital multimedia broadcasting (TDMB), a digital multimedia broadcasting broadcasting (DAB-III) signal or a digital multimedia broadcasting broadcasting (DAB-III) signal, May be provided to receive the GSM signal (GSM850 / 1900).

 That is, the shark pin integrated type antenna according to the present invention can be divided into domestic, North American, and Europe, and since the frequency bands are different according to the communication standards described above for each country, The antenna must be manufactured.

 Here, the second antenna unit 50 may be provided to receive a Terrestrial Digital Multimedia Broadcasting (TDMB) signal and a HSDPA signal for a domestic band, and may be configured to receive a GMS signal of a North American band, (Digital Audio Broadcasting Band III) and a DAB-L signal. However, the present invention is not limited thereto, and it may be provided in various forms to smoothly receive frequencies of each country.

 1 and 2, a second sub-unit 52 for improving the electrical characteristics of the second antenna unit 50 may be disposed on the second antenna unit 50 .

 Here, the second sub-unit 52 is a component for contacting the second antenna unit 50 to improve the reception performance of the second antenna unit 50, The second antenna unit 50 can be extended in the length of the second antenna unit 50 so that the second antenna unit 50 can resonate with the second antenna unit 50. In this way, the electrical characteristics of the second antenna unit 50, such as gain, have.

 1 and 2, a plurality of openings provided in a mesh form are formed in the second sub-unit 52 so that the electrical characteristics of the second antenna unit 40, for example, gain, directivity, The bandwidth and the like of the first antenna unit 40 and the reception performance of the third antenna unit 70 are prevented from being deteriorated.

 1 and 2, a portion of the second sub-unit 52 may be in contact with the first sub-unit 60. Preferably, the inner sub- As shown in Fig.

 This is to improve the receiving performance of the second antenna unit 50 by increasing the area of the second subunit 52 within the applicable range of the antenna internal space and to improve the receiving performance of the second antenna unit 50, And may be provided to improve the electrical characteristics of the second antenna unit 50.

 The second sub-unit 52 may be fixed to the inner circumferential surface of the case 30 by a thermal fusion process to increase the mass productivity of the product assembly, or may be formed of a copper plate or an aluminum material.

 The structure and the shape of the second sub-unit 52 are not limited to those shown in Figs. 1 and 2, and may be a required reception band in a geometrical range that can be fixed along the inner circumferential surface of the case 30 And may be provided in various shapes depending on performance.

1 and 2, the third antenna unit 70 may be a patch antenna or a ceramic antenna mounted on the printed circuit board 12, have.

Hereinafter, the radiation characteristics and gain for each band of the standard antenna, the micro antenna, and the shark pin integrated type antenna of the present invention will be described with reference to FIGS. 3 to 4. FIG.

FIG. 3 is a graph illustrating the measurement and comparison of gains of the integrated antenna, the standard antenna, and the micro antenna according to the present invention. FIGS. 4A, 4B, ) And the shark pin integrated type antenna (c) of the present invention.

As can be seen from FIG. 3, when a standard antenna having a length of 750 mm and a shark-pin integrated antenna according to the present invention are compared with each other, the standard antenna shows high performance over the entire band, A comparison between a micro antenna having a length of 180 mm and a shark pin integrated antenna of the present invention confirms that the shark pin integrated antenna exhibits good or equivalent performance over the entire section.

4, the radiation characteristics of the standard antenna having a length of 750 mm, the micro antenna having a length of 180 mm, and the shark-pin integrated type antenna of the present invention show almost similar values over the entire range of 88 MHz to 108 MHz And it is comparatively small compared with a comparatively large standard antenna and a micro antenna, and shows comparable or similar performance.

As described above, according to the present invention, by arranging the auxiliary unit in contact with the antenna unit within the applicable range of the inner space of the shark fin type antenna and forming the mesh-shaped opening in the auxiliary unit, And at the same time, it is possible to smoothly receive signals of various bands because the antenna has good gain and radiation pattern conditions.

 In addition, since the antenna unit is provided with a helical, patch, ceramic, dipole, and patterned substrate structure and various combinations thereof, the shapes of the antenna unit and the auxiliary unit are variously provided. It is possible to flexibly respond to signal reception.

In addition, the mass productivity of the product can be increased with a simple internal structure and a compact configuration.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: base 120: printed circuit board
20: Pad 30: Case
40: first antenna unit 50: second antenna unit
52: second auxiliary unit 60: first auxiliary unit
62: opening portion 70: second antenna unit

Claims (8)

A base (10) on which a printed circuit board (12) and a plurality of antenna units are installed;
A case 30 covering the base 10;
A first antenna unit (40) mounted on the base (10); And
The first antenna unit 40 is provided with an upwardly extending upper end extending along the inner circumferential surface of the case 30 to improve the electrical characteristics of the first antenna unit 40 and to provide a plurality of mesh- And a second sub-unit (60) formed on the other sub-unit to prevent degradation of performance of another antenna unit. The method according to claim 1,
A second antenna unit (50) installed on the base (10); And a second auxiliary unit (not shown) provided on the second antenna unit 50 and extending upwardly and having an upper end extending along the inner circumferential surface of the case 30 and having a plurality of mesh-shaped openings, 52). ≪ / RTI > The method of claim 2,
Characterized in that the first antenna unit (40) receives signals in the radio band and the second antenna unit (50) is provided in the rear of the first antenna unit (40) to receive signals in the DMB band. antenna. The method according to claim 1,
And a third antenna unit (70) for receiving a GPS band signal is installed on the base in front of the first antenna unit (40). The method according to claim 1,
The first auxiliary unit 60 extends upward from the upper end of the first antenna unit 40 and the upper end of the first auxiliary unit 60 is formed into a roof shape covering the first antenna unit 40 along the inner circumferential surface of the case 30 And a plurality of openings (62) are formed at the top end of the roof. The method according to claim 1,
Wherein the first sub-unit (60) is formed of a metal material that can be energized and has an upper end portion formed to correspond to an inner circumferential surface of the case (30) through a folding process. The method according to claim 1,
The first antenna unit 40 includes a coil wound around an outer surface of a cradle and the cradle is formed of at least one of a polyoxymethylene or an acetyl polymer or an acrylonitrile butadiene styrene (ABS) resin or a polycarbonate (PC) Wherein the shark pin integrated antenna comprises: The method of claim 2,
The second antenna unit 50 is formed of a glass epoxy substrate on which an antenna pattern is formed. The second antenna unit 50 is formed of a glass epoxy substrate, and is configured to receive TDMB (Terrestrial Digital Multimedia Broadcasting), HSDPA or DAB III (Digital Audio Broadcasting Band III) Wherein the shark pin integrated antenna comprises:

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