KR100806108B1 - Mobile communication terminal with antenna device - Google Patents

Abstract

The present invention provides a voice call and data using a mobile communication terminal capable of transmitting and receiving mobile and communication signals, such as a mobile phone, a personal digital assistant (PDA) and a notebook computer capable of transmitting and receiving communication signals. In transmitting / receiving communication signals such as communication, low-temperature antenna panels radiate electric wave corresponding to a specific frequency or induce electromotive force by electric wave corresponding to the frequency and are in electrical contact with a printed circuit board of a mobile communication terminal. By applying ceramic dielectric panel sheet manufactured by co-fired ceramic method, antenna size can be miniaturized, gain gain is improved, and antenna device which provides excellent effect in one chip modularization with other electrical elements. The present invention relates to a mobile communication terminal provided. A mobile communication terminal having an antenna device in electrical contact with a printed circuit board to transmit and receive a communication signal, the antenna device is a multi-layer stacked in a plurality of layers by electrically connecting a plurality of antenna panels for transmitting and receiving a communication signal Characterized in that formed in the structure.

Mobile communication terminals, antenna modules, antenna panels, ceramic dielectric panel sheets, ground feed lines, gap capacitors

Description

Mobile communication terminal with antenna device {MOBILE COMMUNICATION TERMINAL HAVING ANTENNA APPARATUS}

1 and 2 show a conventional antenna device,

1 is a side sectional view showing a mobile communication terminal equipped with a conventional antenna device.

2 is a perspective view illustrating a state in which a conventional antenna device is in electrical contact with a printed circuit board provided in a mobile communication terminal.

3 to 7 illustrate an antenna device of a mobile communication terminal according to an embodiment of the present invention.

3 is a perspective view illustrating a state in which an antenna device of a mobile communication terminal according to an embodiment of the present invention is in electrical contact with a printed circuit board.

4 is an exploded perspective view illustrating a configuration of a first antenna panel of an antenna device of a mobile communication terminal according to an embodiment of the present invention.

5 is a perspective view showing the appearance of the first antenna panel of the antenna device of a mobile communication terminal according to an embodiment of the present invention.

6 is an exploded perspective view illustrating a configuration of a second antenna panel of an antenna device of a mobile communication terminal according to an embodiment of the present invention.

7 is a perspective view showing the appearance of the second antenna panel of the antenna device of a mobile communication terminal according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings

100: mobile communication terminal 110: cover part

111: display unit 112: function keys

113: second printed circuit board 114: first printed circuit board

115: receiver 120: main body

121: printed circuit board 122: boss

123: key input unit 124: third printed circuit board

125: battery 200: slide module

500: antenna device 501: pattern

510: ground portion 511: ground feed line

512: signal feed line 600: antenna device

610: first antenna panel 611: first panel sheet

612: second panel sheet 613: third panel sheet

611a: first pattern 612a: second pattern

613a: third pattern 614: feedline support

615: ground feed line 620: second antenna panel

621: first panel sheet 622: second panel sheet

623: third panel sheet 621a: first pattern

622a: second pattern 623a: third pattern

630: gap capacitor 630a: first gap capacitor

630b: second gap capacitor 630c: third gap capacitor

640: signal feed line 650: panel ground

delete

The present invention provides a voice call and data using a mobile communication terminal capable of transmitting and receiving mobile and communication signals, such as a mobile phone, a personal digital assistant (PDA) and a notebook computer capable of transmitting and receiving communication signals. In transmitting / receiving communication signals such as communication, low-temperature antenna panels radiate electric wave corresponding to a specific frequency or induce electromotive force by electric wave corresponding to the frequency and are in electrical contact with a printed circuit board of a mobile communication terminal. By applying ceramic dielectric panel sheet manufactured by co-fired ceramic method, antenna size can be miniaturized, gain gain is improved, and antenna device which provides excellent effect in one chip modularization with other electrical elements. It relates to a mobile communication terminal provided.

In general, a mobile communication terminal is a wireless communication device configured to enable voice communication and data communication with a specific person while being carried by a user, and to call a specific mobile communication terminal when making a voice call using the mobile communication terminal. It is composed of a system for enabling a call between the sender and the receiver when a response is received from the mobile communication terminal after transmitting a call message including the unique number of the base station through the call channel.

The mobile communication terminal is commonly referred to as a portable mobile communication device capable of being portable and capable of transmitting and receiving communication signals such as a mobile phone or a personal digital assistant (PDA) and a notebook computer capable of transmitting and receiving communication signals. The mobile communication terminal is provided with an antenna device capable of transmitting and receiving a communication signal such as the voice call or data signal in order to transmit and receive the above-mentioned communication signal such as voice call or data communication.

Here, the antenna device provided in the mobile communication terminal receives a communication signal introduced from the outside of the mobile communication terminal and transmits a communication signal transmitted from the communication signal transmitting device provided inside the mobile communication terminal to the outside of the mobile communication terminal. The above-described antenna device mounted on the mobile communication terminal will be described with reference to FIGS. 1 and 2.

1 and 2 illustrate a conventional antenna device, FIG. 1 is a side cross-sectional view showing a mobile communication terminal equipped with a conventional antenna device, and FIG. 2 is a printing in which a conventional antenna device is provided in a mobile communication terminal. A perspective view showing a state in which the circuit board is in electrical contact with the circuit board.

As shown in FIG. 1 and FIG. 2, the mobile communication terminal 100 equipped with a conventional antenna device includes a liquid crystal display (LCD) module for outputting an image signal. Function key 112 for inputting data for controlling various functions of the display unit 111, the first printed circuit board 114 processing the electrical signal of the display unit 111, and the mobile communication terminal 100. ) And a cover 110 provided with a second printed circuit board 113 for processing an electrical signal of the function key 112.

The cover unit 110 includes a main printed circuit board 121 mounted with a plurality of chipsets (not shown) for controlling basic arithmetic functions of the mobile communication terminal 100 and electrical signals such as the display 111. It is coupled to the main body portion 120 provided with the cover 110 is configured to slide the movement relative to the main body portion 120 to open and close the front of the main body portion 120.

On the other hand, the upper end of the main body 120 using the mobile communication terminal 100 in transmitting and receiving communication signals, such as voice calls and data communication, radiates a radio wave corresponding to a specific frequency or to a radio wave corresponding to the frequency By discharging the electromotive force by the built-in antenna module 500 is electrically connected to the main printed circuit board 121.

However, the built-in antenna device 500 provided in the mobile communication terminal 100 provided with the conventional built-in antenna module having the structure as described above is the main body 120 of the mobile communication terminal 100 as shown in FIG. It is configured to be fixed inside, and is also designed to cover a plurality of frequency bands using the fixed one antenna device.

The conventional antenna device 500 formed as described above may not be able to transmit and receive a communication signal in a specific frequency band other than a plurality of preset frequency bands, and may be covered by the conventional internal antenna device 500. Even in the frequency band, there is a problem in that transmission and reception loss of the communication signal or degradation of the antenna gain occurs in any specific frequency band.

In addition, the built-in antenna device 500 provided in the conventional mobile communication terminal 100 with the built-in antenna module is not converted into the optimal frequency band required to implement a specific function of the mobile communication terminal 100 There is a problem in that the frequency band required for implementing a specific function using the mobile communication terminal 100 can not be easily converted.

And the characteristics and bands of the frequency may be different for each region where the user of the mobile communication terminal 100 is present, the built-in antenna device 500 provided in the mobile communication terminal 100 equipped with the conventional built-in antenna module is a specific frequency Because it is designed to only correspond to the user of the mobile communication terminal 100 is subject to the place and time using the mobile communication terminal 100, thereby smoothly moving the position to be used of the mobile communication terminal 100 There is a problem that it cannot be coped.

In the conventional antenna device 500, a predetermined pattern 501 designed to transmit and receive the above communication signals is printed on one surface of the antenna panel constituting the antenna device 500. Since it has a thickness of and consists of a single layer, there is a problem that its size cannot be miniaturized.

In addition, since the pattern 501 printed on one surface of the antenna panel is only printed on a single layer, there is a problem that a transmission / reception rate for transmitting and receiving a communication signal is lowered, and thus, with other electrical elements mounted in the mobile communication terminal. There is a problem that one-chip modularization is difficult.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to transmit and receive mobile and communication signals, such as a mobile phone or a personal digital assistant (PDA) and a notebook computer capable of transmitting and receiving communication signals. In transmitting and receiving communication signals such as voice call and data communication by using a mobile communication terminal, a radio wave corresponding to a specific frequency may be emitted or electromotive force may be induced by a radio wave corresponding to the frequency. By applying a ceramic dielectric panel sheet made of low temperature co-fired ceramic method to the antenna panel in electrical contact with the printed circuit board of the mobile communication terminal, it is possible to reduce the size of the antenna device and improve the gain. Provides excellent effects on one-chip modularization with electrical components It is a mobile communication terminal having an antenna device to provide.

In order to achieve the above object, a mobile communication terminal having an antenna device according to the present invention is a mobile communication terminal having an antenna device in electrical contact with a printed circuit board so as to transmit and receive a communication signal, the antenna device is a communication signal A plurality of antenna panels for transmitting and receiving are characterized in that formed in a multi-layer structure laminated electrically in a plurality of layers are electrically connected to each other.

According to the above configuration, the voice is transmitted using a mobile communication terminal capable of transmitting and receiving mobile and communication signals such as a mobile phone, a personal digital assistant (PDA) and a notebook computer capable of transmitting and receiving communication signals. In transmitting and receiving communication signals such as call and data communication, an antenna radiates electric wave corresponding to a specific frequency or induces electromotive force by electric wave corresponding to the frequency and is in electrical contact with the printed circuit board of the mobile communication terminal. By applying the ceramic dielectric panel sheet manufactured by low temperature co-fired ceramic method, the panel can be miniaturized and gain gain can be improved. It can be effective.

Hereinafter, a mobile communication terminal according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 to 7 show an antenna device of a mobile communication terminal according to an embodiment of the present invention, Figure 3 is an antenna device of the mobile communication terminal according to an embodiment of the present invention is in electrical contact with the printed circuit board It is a perspective view which shows the state.

As shown in FIG. 3, the antenna device 600 of the mobile communication terminal 100 according to the embodiment of the present invention is electrically connected to the printed circuit board 121 so as to transmit and receive a communication signal. to be. The antenna device 600 provided in the mobile communication terminal 100 has a multi-layered structure in which a plurality of antenna panels 610 and 620 for transmitting and receiving communication signals are electrically connected to each other and stacked in a plurality of layers. The plurality of antenna panels 610 and 620 may be electrically connected to each other by a panel grounding part 650 (panel connecting part) as shown. In addition, a signal feed line 640 and a ground feed line 615 are provided to transmit and receive signals.

Although the antenna panels 610 and 620 constituting the antenna device of the mobile communication terminal 100 according to the embodiment of the present invention having the above-described configuration may be formed in plural, the mobile communication terminal according to the embodiment of the present invention. In configuring the antenna device, it is preferable that the first antenna panel 610 and the second antenna panel 620 are formed in a dual structure in which two antenna panels 610 and 620 are stacked.

The detailed configuration of the antenna device 600 of the mobile communication terminal 100 according to the embodiment of the present invention formed as described above will be described below with reference to FIGS. 4 to 7.

4 is an exploded perspective view showing the configuration of the first antenna panel 610 constituting the antenna device 600 of the mobile communication terminal 100 according to an embodiment of the present invention, Figure 5 is a view shown in FIG. FIG. 1 is a perspective view illustrating the appearance of a state in which the first antenna panel 610 of the antenna device of the mobile communication terminal 100 is coupled.

6 is an exploded perspective view showing the configuration of the second antenna panel 620 of the antenna device of the mobile communication terminal 100 according to an embodiment of the present invention, Figure 7 is a mobile communication terminal according to an embodiment of the present invention It is a combined perspective view showing the appearance of the second antenna panel 620 of the antenna device of (100).

First, as illustrated in FIGS. 4 to 7, the plurality of antenna panels 610 and 620 constituting the antenna device of the mobile communication terminal 100 according to the embodiment of the present invention may have a predetermined pattern for transmitting and receiving the communication signal ( 611a, 612a, 613a, 621a, 622a, and 623a are constructed by stacking a plurality of panel sheets 611, 612, 613, 621, 622, and 623 printed on their respective surfaces.

The panel sheets 611, 612, 613, 621, 622, and 623 constituting the antenna panels 610 and 620 are preferably made of a ceramic dielectric, wherein the ceramic dielectric is a low temperature co-fired ceramic. (Multi layered Low Temperature Co-firing Ceramics; LTCC) can be manufactured by the process of simultaneously processing ceramics and electrodes at temperatures below 900 degrees.

In addition, each of the antenna panels 610 and 620 constituting the antenna device of the mobile communication terminal 100 according to an embodiment of the present invention, the antenna panel 610 so that the resonance frequency and sufficient bandwidth of the antenna device can be secured 620 and a ground feed line 615 electrically connecting the ground layer (not shown) of the printed circuit board 121. The ground feed line 615 may be configured such that one end is connected to the first antenna panel 610 as shown, and the other end of the ground feed line 615 is a printed circuit as in the configuration of a general antenna. It may be connected to the ground of the substrate 121.
Meanwhile, in order to connect the ground feed line 615 to the first antenna panel 610, the first antenna panel 610 may further include a feed line support 614. In this case, one end of the ground feed line 615 may be connected to the feed line support part 614 provided in the first antenna panel 610 to be connected to the first antenna panel 610.

That is, in order to secure a resonant frequency and sufficient bandwidth of the antenna device due to being grounded inside the mobile communication terminal 100 and grounded with a ground layer (not shown) provided on the printed circuit board 121 for processing various electrical signals. The antenna device 600 according to the embodiment of the present invention includes a ground feed line 615 that is grounded with a ground layer (not shown) provided in the printed circuit board 121.
In addition, a signal feed line 640 is provided between the antenna device 600 and the printed circuit board to transmit and receive signals. The signal feed line 640 has a second antenna panel as shown at one end thereof. The other end of the signal feed line 640 may be connected to a signal line (not shown) of the printed circuit board 121 like a general antenna.

The antenna panels 610 and 620, which envision the antenna device of the mobile communication terminal 100 according to the embodiment of the present invention, have a ring shape having a hole having a predetermined size in the center thereof, as described above. One of the panel 610, 620 of each of the antenna panel (610, 620) formed in a ring shape is provided with a gap capacitor (630) formed by opening a portion of the annular panel desirable.

Here, the gap capacitor 630 formed as described above has an effect of reducing the resonance length by reducing the frequency due to the impedance characteristic of the antenna device, thereby reducing the overall length of the antenna device, thereby The overall size of the antenna device can be miniaturized.

In addition, as described above, the antenna panels 610 and 620 constituting the antenna device of the mobile communication terminal 100 according to an embodiment of the present invention may be configured in plural, but according to an embodiment of the present invention. In configuring the antenna device, it may be preferably composed of a first antenna panel 610 and a second antenna panel 620. in this case,
As mentioned above, the two antenna panels 610 and 620 may be signal-connected by the panel ground 650 (panel connection). That is, it is preferable to have a dual structure in which two antenna panels 610 and 620 are stacked. According to the above configuration, a first antenna in which a predetermined pattern is printed in an upper direction of a second antenna panel 620 located in a lower layer is formed. The panel 610 is configured to be stacked in a state in which the panel 610 is connected by the panel grounding part 650 (panel connecting part) so that the first antenna panel 610 and the second antenna panel 620 have a current pattern in the same direction. By doing so, gain gain can be improved.

In addition, the antenna device of the mobile communication terminal 100 according to an embodiment of the present invention having the above-described configuration has the effect of transmitting and receiving at the same time the frequency band of 824 ~ 894Mhz and 2.63 ~ 2.655Ghz, it is attached below Reflection coefficient test result and omni-directional characteristic of antenna device of mobile communication terminal 100 according to an embodiment of the present invention with reference to an experimental result graph obtained by simulating antenna device of mobile communication terminal 100 according to an embodiment of the present invention It will be described as follows.

First, the attached experimental result graph 1 shows a result of simulating the reflection coefficient of the mobile communication terminal 100 according to the embodiment of the present invention.

[Experimental Graph 1]

That is, in general, in order to have the performance of the antenna, the coefficient of reflection (Voltage Standing Wave Ratio; VSWR) should be 2: 1 or less. In other words, when the reflection coefficient of 2: 1 is converted into db, the graph shown in the attached experimental result graph 1 is shown. As shown, the figure should be 10db.

As shown in Graph 1, it can be seen that the frequency bands of the antenna device of the mobile communication terminal according to the embodiment of the present invention represent a satisfactory performance as an antenna because the frequency bands are represented by a value of -10 db or less.

The attached experimental result graphs 2 and 3 show simulation result values of the antenna device of the mobile communication terminal according to the embodiment of the present invention, and the experimental result values shown in the attached experimental result graphs 2 and 3 indicate the present invention. The antenna device of the mobile communication terminal according to the embodiment of the present invention can be seen that it has the characteristics of the omni-directional direction required in the conventional mobile communication terminal.

[Experiment Graph 2]

[Experimental Graph 3]

As described above, the band of the frequency disclosed in the claims of the present invention is referred to as a "tenna device", but it is necessary to use a specific mobile communication terminal according to the development of the mobile communication terminal and the change of the communication signal transmission method. Of course, it can be implemented by changing to the frequency band.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

As described above, the mobile communication terminal including the antenna device according to the present invention radiates radio waves corresponding to a specific frequency or transmits or receives electromotive force by radio waves corresponding to the frequency in transmitting and receiving communication signals such as voice calls and data communications. The antenna panel is made of low temperature co-fired ceramic method and the antenna panel which is in electrical contact with the printed circuit board of the mobile communication terminal can be reduced in size and gain. The gain is improved and it can provide an excellent effect on the one-chip modularization with other electrical elements.

Claims (10)

A printed circuit board mounted inside the terminal body; And an antenna device electrically connected to the printed circuit board, The antenna device At least one first antenna panel having an annular closed loop pattern ; At least one second antenna panel having an open-loop pattern in which a gap capacitor is formed in one region and electrically connected to the first antenna panel. A mobile communication terminal having an antenna device, characterized in that configured to be capable of transmitting and receiving communication frequencies of at least two bands. The method of claim 1, wherein the first antenna panel is composed of a plurality of panel sheets, each of which is printed a predetermined pattern for transmitting and receiving communication signals on one surface thereof is stacked, The second antenna panel has a mobile communication terminal having an antenna device, characterized in that a plurality of panel sheets each of which is printed a predetermined pattern for transmitting and receiving a communication signal is laminated on one surface. The mobile communication terminal with an antenna device according to claim 2, wherein each panel sheet constituting the first antenna panel and each panel sheet constituting the second antenna panel are made of a ceramic dielectric. The mobile communication device of claim 1, wherein the antenna device further comprises a ground feed line electrically connected to a ground layer of a printed circuit board to secure a resonance frequency and a frequency bandwidth. terminal. delete delete The mobile terminal of claim 1, wherein the antenna device simultaneously transmits and receives a frequency band of 824 to 894Mhz and 2.63 to 2.655Ghz. The antenna device of claim 1, wherein the antenna device has an open loop pattern in which a transmission and reception of a frequency band of 824 to 894Mhz is formed in an annular closed loop pattern of the first antenna panel and a gap capacitor is formed in one region of the second antenna panel. A mobile communication terminal having an antenna device, characterized in that implemented through the entire length of the pattern of states. The mobile communication terminal of claim 1, wherein the antenna device transmits and receives the 2.63 to 2.655 Ghz frequency band only through a length of an annular closed loop pattern of the first antenna panel. The method of claim 1, wherein the antenna device is characterized in that the transmission and reception of the 824 ~ 894Mhz frequency band is implemented only through the entire length of the pattern of the open loop in which a gap capacitor (Gap Capacitor) is formed in one region of the second antenna panel A mobile communication terminal having an antenna device.

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