KR20090124399A - Gender built-in type pattern antenna - Google Patents

Abstract

PURPOSE: A gender built-in antenna is provided to enable a user to use an additional service such as terrestrial digital multimedia broadcasting by using a gender, carried with a mobile communication terminal, without a special external antenna. CONSTITUTION: An antenna pattern part(410) is located on at least one plane of a printed circuit board capable of exchanging a communication mode of first and second connectors. A power feed terminal(420) feeds power to the antenna pattern part by using one or more pins of the second connector. The antenna pattern part is formed as a PCB pattern on one or more planes of the PCB. The first connector comprises a metal frame part(430). The metal frame part and the antenna pattern part are connected through conductive material. An impedance matching part(440) is connected to the antenna pattern part, and located on one or more planes of the PCB.

Description

Gender built-in antenna {GENDER BUILT-IN TYPE PATTERN ANTENNA}

The present invention relates to a gender built-in antenna, and more particularly, to an antenna using a gender used for data transmission or charging of a mobile communication terminal.

The development of antenna technology may also be an important factor in the slimming and miniaturization of mobile communication terminals and portable digital TV (eg, DMB, DVB-H, MediaFlo) terminals, which are becoming more common.

For example, the conventional first generation mobile communication terminals are equipped with a stud type antenna, and have a protruding exterior at one side of the upper end of the mobile communication terminal, which is inconvenient to carry and has a high risk of damage. There was a problem in that the degree of freedom of design, which greatly affects the commerciality of the product, was limited. In recent years, however, an intena type has been generally adopted in which an antenna is mounted in a housing of a terminal and a protruding antenna is not exposed in appearance.

In addition, most recent terminals have to accommodate two or three or more bands. For example, in the case of a mobile communication terminal that complies with the Wide-band Code Division Multiple Access (WCDMA) technology of the 3GPP standard, which is widely used worldwide as a representative of the third generation mobile communication, in most cases, the GSM frequency band is basically used. (860 ~ 960MHz), UMTS (Universal Mobile Telecommunications System) band (1,920 ~ 2,170MHz) should be supported, and additionally PCS (Personal Communication Service) band (1,880 ~ 1,990MHz) must be supported. In other words, even in the case of the built-in antenna, there is a need to have excellent radiation characteristics and wide bandwidth even in a small volume to meet the design trend of slim and miniaturized mobile communication terminals.

Moreover, recent terminals support various additional services. For example, it supports additional services such as Global Positioning System (GPS), Bluetooth, Terrestrial or Satellite Digital Multimedia Broadcasting (DMB), and recently, RFID (Radio Frequency) such as Near Field Communication (NFC). Identification (ID) support is also becoming common.

On the other hand, since these various additional services are overlapping with each other or using different frequency bands, it is necessary to use a separate antenna corresponding to a separate frequency band from the aforementioned internal antenna of the terminal. In this case, there is also a method using a wideband external antenna that comprehensively supports the frequency bands of various supplementary services, but it is difficult to obtain a broadband characteristic that evenly covers the frequency bands of all supplementary services with one antenna. In the frequency band corresponding to, a decrease in reception sensitivity necessarily follows.

Therefore, a method of connecting an external antenna corresponding to each additional service to an external antenna RF connector of a terminal whenever necessary is used, but in this case, there is a risk of inconvenience and loss of the external antenna. When a force is applied in a state where it is attached to the terminal, there is a secondary problem such as a high risk of damage.

Therefore, to improve the shape of the external antenna to minimize the user's inconvenience, or to allow the accessory (product) that the user is most likely to carry with the mobile terminal to perform the role of the external antenna It is preferable. However, most external antennas are also difficult to secure a sufficient size, and in particular, in order for accessory products to function as external antennas, an antenna structure capable of securing sufficient characteristics of the antenna even in a small mounting space is required.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide an antenna embedded in a gender which is an accessory product of a mobile communication terminal.

In one embodiment of a gender built-in antenna according to the present invention for achieving the object of the present invention, a gender having a first connector and a second connector, the communication method of the first connector and the second connector are interchanged. And an antenna pattern portion positioned on at least one surface of the printed circuit board and a feed terminal configured to feed the antenna pattern portion by using at least one pin of the second connector. To provide.

Here, the antenna pattern portion may be formed in a printed circuit board pattern on at least one surface of the printed circuit board.

The printed circuit board patterns may be formed on the front and rear surfaces of the printed circuit board, and the printed circuit board patterns formed on the front and rear surfaces of the printed circuit board may be connected to each other by thru vias.

Here, the antenna pattern portion may be formed in a pattern of a conductive metal material fixed by at least one surface of the printed circuit board by a heat fusion method or a method using fastening holes and fastening protrusions.

Here, the frequency band of the gender built-in antenna may correspond to a frequency band of terrestrial digital multimedia broadcasting (TDMB).

Here, the gender may be a gender for converting a TTA 24-pin connector into a TTA 20-pin connector.

Here, in another embodiment of the gender-embedded antenna according to the present invention for achieving the above object of the present invention, the first connector has a metal frame portion, the metal frame portion and the antenna pattern portion is connected to a conductive material It provides a gender built-in antenna.

Here, another embodiment of the gender-embedded antenna according to the present invention for achieving the above object of the present invention is connected to the antenna pattern portion, the impedance matching portion located on at least one surface of the printed circuit board It further provides a gender built-in antenna configured to include.

Here, the impedance matching unit may include at least one pad capable of attaching the inductor element and at least one inductor element attached to the pad.

In the case of using the gender-embedded antenna according to the present invention, it is possible to secure sufficient antenna characteristic values corresponding to the frequency band of additional services such as terrestrial digital multimedia broadcasting even in a narrow internal space of gender.

Accordingly, the mobile communication terminal user can use additional services such as terrestrial digital multimedia broadcasting by using a gender that is always carried with the mobile communication terminal without the inconvenience of having a separate external antenna.

As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description.

However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. In the following description of the present invention, the same reference numerals are used for the same elements in the drawings and redundant descriptions of the same elements will be omitted.

1 is a conceptual diagram illustrating an embodiment of a gender built-in antenna according to the present invention.

Referring to FIG. 1, one embodiment of a gender embedded antenna according to the present invention is a gender having a first connector and a second connector, and the printing method of exchanging communication methods of the first connector and the second connector may be performed. And a feed terminal 120 that feeds the antenna pattern portion using at least one pin of the second connector and an antenna pattern portion 110 positioned on at least one surface of the circuit board. .

First, an antenna is generally made of a metal material, and is an apparatus for receiving or generating radio waves at a long distance. Since the antenna should be synchronized with the wavelength of the radio wave to be transmitted and received, the antenna is closely related to the wavelength of the radio wave. Although transmission and reception are performed with the same type of antenna, an antenna specifically designed for transmission or reception may be designed. Therefore, there are various types of antennas according to the wavelength and the purpose of the radio waves to be transmitted and received. That is, a mono-pole antenna, a di-pole antenna, a Yagi-Uda antenna and a parabola antenna exist. In particular, a planar inverted antenna (PIFA) is used as a mobile communication terminal.

Next, a gender is a component that converts a connector of one type into a connector of another type, and a connector provided in a mobile communication terminal to connect a data communication and charging cable to a connector of a desired type. Means converting means for converting.

For example, a part (TTA 24pin to 20pin) for converting a TTA (Telecommunications Technology Association) 24-pin connector applied to a mobile communication terminal into a TTA 20-pin connector may be representative. However, the gender to which the gender embedded antenna according to the present invention is applied is not necessarily limited to a gender for converting a TTA 24-pin connector into a 20-pin connector. Another example of a gender may be a TTA 24pin to USB gender that converts a TTA 24-pin connector to a USB connector, or a TTA 20pin to USB gender that converts a TTA 20-pin connector to a USB connector.

Next, the antenna pattern portion 110 which is located on at least one surface of the printed circuit board that can exchange the communication method of the first connector and the second connector is on at least one surface of the printed circuit board. It may be formed in a printed circuit board pattern. The printed circuit board patterns may be formed on the front and rear surfaces of the printed circuit board, and the printed circuit board patterns formed on the front and rear surfaces of the printed circuit board may be connected to each other by thru vias.

For example, the printed circuit board pattern may be formed on one or both sides of the printed circuit board, and each formed printed circuit board pattern may be adjusted in length and shape to form a wavelength and resonance of radio waves to be transmitted and received. It may be one. In addition, when formed on both sides may be electrically connected to each other using through vias.

In addition, the antenna pattern portion 110 which is located on at least one surface of the printed circuit board that can interchange the communication method of the first connector and the second connector is arranged on at least one surface of the printed circuit board. It may be formed in a pattern of a conductive metal material fixed by a fusion method or a method using a fastening hole and a fastening protrusion.

For example, the pattern of the conductive metal material may be formed on one or both sides of the printed circuit board, and the length and shape may be adjusted to form the wavelength and resonance of the radio wave to be transmitted and received. In addition, it may be bonded to the upper portion of the printed circuit board by a thermal fusion method for bonding with the printed circuit board. In addition, a fastening hole or a fastening protrusion may be formed in the pattern of the conductive metal material, and the printed circuit board may be coupled by forming a fastening protrusion or a fastening hole which may be coupled thereto.

Next, when the power supply terminal 120 that feeds the antenna pattern portion 110 using at least one pin of the second connector is connected to the antenna pattern portion, when the gender is coupled to the mobile communication terminal And a power supply line in the mobile communication terminal through at least one pin constituting the second connector connected to the mobile communication terminal included in the gender.

Referring back to FIG. 1, in one embodiment of a gender embedded antenna according to the present invention, a gender built-in antenna including the antenna pattern unit 110 and the power supply terminal 120 may be adjusted for synchronization with a specific transmission / reception wave. It may be.

For example, a frequency band of a gender built-in antenna including the antenna pattern unit 110 and the feed terminal 120 is adjusted to correspond to a frequency band of terrestrial digital multimedia broadcasting (TDMB). It may be. In addition, the frequency band of the antenna may be adjusted to correspond to the frequency band of the global positioning system (GPS).

2 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

Referring to FIG. 2, another embodiment of the gender embedded antenna according to the present invention further includes a metal frame portion 230 of the first connector having the antenna pattern portion 210 and the feed terminal 220. It can be configured. The metal frame portion 230 of the first connector may be connected to the antenna pattern portion 210 with a conductive material.

The metal edge portion 230 of the first connector is generally configured to protect pins of the first connector, but is connected to the antenna pattern portion 210 by a conductive material and is a length component of a gender-embedded antenna according to the present invention. It can serve as a reward. Therefore, it may be to form a resonance with the wavelength of the radio wave to be transmitted and received.

For example, the metal edge portion 230 of the first connector is electrically connected to the antenna pattern portion 210, and again, the antenna pattern portion 210 is a feed terminal composed of at least one pin of the second connector. Is electrically connected to 220. Therefore, when the gender is coupled to the mobile communication terminal, the gender is connected to the power supply line in the mobile communication terminal through the power supply terminal 220. Therefore, it becomes possible to act as an antenna.

3 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

Referring to FIG. 3, another embodiment of the gender embedded antenna according to the present invention is connected to the antenna pattern part having the antenna pattern part 310 and the feed terminal 320, and connected to the printed circuit board. It may be configured to further include an impedance matching unit 340 located on at least one surface. The impedance matching unit 340 may be connected to the antenna pattern unit 310 and the power feeding terminal 320 using a conductive material. In addition, the impedance matching unit 340 may include at least one pad capable of attaching the inductor device and at least one inductor device attached to the pad.

An impedance matching unit 340 positioned on at least one surface of the printed circuit board is connected to the antenna pattern unit 310 to form a wavelength and resonance of a radio wave to be transmitted and received with a gender built-in antenna according to the present invention. This is to match the impedance. In addition, the pad and the inductor element may be used for impedance matching.

For example, the impedance matching unit 340, the antenna pattern unit 310, and the feed terminal 320 are electrically connected to each other. Therefore, when the gender is combined with the mobile communication terminal, the gender may serve as an antenna. In addition, the pad and the inductor element may be used while adjusting the capacity of the inductor element to adjust the impedance to form a resonance with the transmission and reception radio waves.

4 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

Referring to FIG. 4, another embodiment of the gender embedded antenna according to the present invention further includes the antenna pattern part 410 and the feed terminal 420, and further includes a metal edge part 430 of the first connector. And an impedance matching unit 440 positioned on at least one surface of the printed circuit board.

For example, the metal frame portion 430 of the first connector, the antenna pattern portion 410, the impedance matching portion 440, and the feed terminal 420 may be electrically connected to each other. The feed terminal 420 may be connected to a feed line of a mobile communication terminal to serve as an antenna. In addition, in the case of the above configuration, since the compensation of the length component becomes easier, impedance matching for generating resonance with the wavelength of the radio wave to be transmitted and received can be achieved more easily.

5 is an exemplary view for explaining the shape of the gender used in the present invention.

Referring to FIG. 5, a gender having a first connector and a second connector according to the present invention includes a second connector connected to a connector provided in a mobile communication terminal, and a second connector connected inside the gender with the second connector. It consists of a connector and a first connector of a different type.

For example, if the gender is a TTA 24pin to 20pin gender, the first connector may be a TTA 24-pin connector (male or female) and the second connector may be a TTA 20-pin connector (male or female). .

6 is a graph showing the change of the S-parameter according to the frequency change of an embodiment of the gender-built antenna according to the present invention.

Referring to FIG. 6, the magnitude of the S-parameter value in the frequency range for receiving terrestrial digital multimedia broadcasting (TDMB) can be described through an embodiment of a gender embedded antenna according to the present invention. Therefore, it can be seen that excellent reception sensitivity is maintained in the frequency range used for terrestrial digital multimedia broadcasting (TDMB).

For example, the measured S-parameter value in the vicinity of 200 MHz, which is a frequency band of terrestrial digital multimedia broadcasting (TDMB) currently used in Korea, has a value of -20 to -30 dBm. Thus, one embodiment of the gender embedded antenna according to the present invention may be utilized to watch terrestrial digital multimedia broadcasting (TDMB).

In addition, the following table measures the characteristics of the minimum receivable radio wave strength for each channel of the terrestrial digital multimedia broadcasting (TDMB) currently used in Korea by using an embodiment of a gender built-in antenna according to the present invention.

Referring to the table, when looking at the strength of the minimum receivable radio wave for each frequency band of various channels for receiving a terrestrial digital multimedia broadcasting (TDMB) using a gender built-in antenna in accordance with the present invention Since it corresponds to -39.5 to -43.0 dBm, it will be possible to watch terrestrial digital multimedia broadcasting (TDMB) using an embodiment of a gender embedded antenna according to the present invention.

 TDMB Channel Frequency band (MHz) Minimum Receivable Value (dBm) 8A (YTN) 180.512-182.048 -42.5 8B 182.240 ~ 183.776 -43.5 8C 183.968-185.504 -39.5 12A (MBC) 204.512-206.048 -42.0 12B (KBS) 206.240-207.776 -43.0 12C (SBS) 207.968-209.504 -42.5

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

1 is a conceptual diagram illustrating an embodiment of a gender built-in antenna according to the present invention.

2 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

3 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

4 is a conceptual diagram illustrating another embodiment of a gender built-in antenna according to the present invention.

5 is an exemplary view for explaining the shape of the gender used in the present invention.

6 is a graph showing the change of the S-rameter according to the frequency change of the embodiment of the gender-built antenna according to the present invention.

<Description of the reference numerals for the main parts of the drawings>

410 antenna pattern part

420 Feed terminal of the second connector

430 metal rim of the first connector

440 Impedance Match

Claims (9)

In a gender having a first connector and a second connector, An antenna pattern part disposed on at least one surface of a printed circuit board which may exchange communication methods between the first connector and the second connector; And And a feed terminal configured to feed the antenna pattern portion using at least one pin of the second connector. The method of claim 1, And the antenna pattern part is formed in a printed circuit board pattern on at least one surface of the printed circuit board. The method of claim 2, The printed circuit board pattern is formed on the front and back of the printed circuit board, the printed circuit board pattern formed on the front and back of the printed circuit board is a gender built-in antenna, characterized in that connected to each other by a through (thru via). The method of claim 1, And the antenna pattern part is formed in a conductive metal pattern fixed on at least one surface of the printed circuit board by a heat fusion method or a method using fastening holes and fastening protrusions. The method of claim 1, And a frequency band of the gender built-in antenna corresponds to a frequency band of terrestrial digital multimedia broadcasting (TDMB). The method of claim 1, And the gender is a gender for converting a TTA 24-pin connector into a TTA 20-pin connector. The method of claim 1, The first connector has a metal rim, And the metal frame portion and the antenna pattern portion are connected to each other using a conductive material. The method of claim 1, And a impedance matching part connected to the antenna pattern part and positioned on at least one surface of the printed circuit board. The method of claim 8, The impedance matching unit includes at least one pad to which the inductor element can be attached and at least one inductor element attached to the pad.

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