KR100836558B1 - Multi band antenna using the heterogeneous dielectric substances - Google Patents

Abstract

A multi-band antenna using heterogeneous dielectrics is provided to improve characteristics of the antenna by operating first and second radiators in specific frequency bands respectively in correspondence to first and second dielectrics. A multi-band antenna using heterogeneous dielectrics includes a first dielectric(100), a second dielectric(200), a radiator(300), and a feed unit(400). The first dielectric has a low dielectric constant. The second dielectric has a high dielectric constant and is coupled with the first dielectric. The radiator is formed in a folded line type single pattern on the first and second dielectrics. The feed unit is connected to one side of the radiator to feed signals. The radiator is composed of a first radiator formed on the first dielectric and a second radiator formed on the second dielectric.

Description

 Multiband Antenna using Heterogeneous Dielectrics. {Multi band antenna using the heterogeneous dielectric substances}

1 is a block diagram of a conventional mobile terminal antenna

2 is a block diagram of a multi-band antenna using a heterogeneous dielectric according to an embodiment of the present invention

3 is an exploded view of a multiband antenna using a heterogeneous dielectric according to FIG. 2 of the present invention.

* Description of the main drawing codes *

10: meander strip 20: square pattern

100: first dielectric 200: second dielectric

300: radiator 310: first radiator

320: second radiator 400: feeder

The present invention relates to a multi-band antenna using a heterogeneous dielectric, and more particularly, a dielectric having a heterogeneous dielectric constant is combined on the same plane and a radiator is formed on the dielectric, thereby limiting the implementation of the multi-band antenna. The present invention relates to a multi-band antenna using heterogeneous dielectrics that efficiently uses the space of antennas and improves antenna characteristics of each band.

As a technology related to an antenna of a conventional mobile terminal, Korean Laid-Open Patent Publication No. 10-2006-0053400 discloses a multi-layer meander strip 10 connecting a plurality of meander pattern layers as shown in FIG. A plurality of rectangular patterns 20 are inserted at regular intervals between the pattern layers. Such a prior art improves polarization characteristics by inserting a square pattern at a predetermined interval between each meander pattern layer of the multilayer meander strip antenna of the mobile terminal, and improves the reception sensitivity of the mobile terminal.

However, the conventional technique has a problem that space constraints are followed because the meander strip is formed in multiple layers.

In addition, because the use of a plurality of patterns, the polarization characteristics are improved, but only a single frequency band has a problem.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to combine the first and second dielectrics having different dielectric constants on the same plane and the radiator is formed on top of the first and second dielectrics The purpose is to provide an antenna that optimizes the utilization of space.

In addition, since the first radiator operates in a specific frequency band corresponding to the first dielectric and the second radiator operates in another specific frequency band in correspondence with the second dielectric, miniaturization of the antenna as well as various characteristics including polarization characteristics of the antenna Not only is this improvement, but its purpose is to provide an antenna that operates in multiple bands.

In order to achieve the above object, a multi-band antenna using a heterogeneous dielectric material according to an embodiment of the present invention includes a first dielectric having a low dielectric constant, a second dielectric having a high dielectric constant, and a first dielectric having the high dielectric constant and the first dielectric. And a radiator formed in a pattern of folded lines on an upper side of the second dielectric, and a feeder connected to one side of the radiator to feed a signal.

According to one embodiment of the invention, the radiator is characterized in that the first radiator formed on the first dielectric and the second radiator formed on the second dielectric.

According to one embodiment of the invention the first radiator is characterized in that it is operated in the DCS and PCS bands.

According to one embodiment of the invention the second radiator is characterized in that it is operated in the GSM band.

According to an embodiment of the present invention, the second dielectric is formed on a portion of the first dielectric periphery.

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

2 is a block diagram of a multi-band antenna using a heterogeneous dielectric according to the present invention, the first dielectric 100 having a low dielectric constant and the second dielectric 200 having a high dielectric constant coupled with the first dielectric 100. ) And a radiator 300 formed in a pattern of folded lines on the upper sides of the first dielectric material 100 and the second dielectric material 200 and one side of the radiator 300 to feed a signal. It consists of a feed unit 400.

In more detail, the first dielectric material 100 is formed to have a predetermined length and thickness and has a low dielectric constant.

The second dielectric 200 is formed at predetermined intervals and widths along the outer surface of the first dielectric 100 and has a high dielectric constant.

Shapes of the first and second dielectrics 100 and 200 may be implemented in various shapes.

As shown in FIG. 3, the radiator 300 includes a first radiator 310 formed on the first dielectric material 100 and a second radiator 320 formed on the second dielectric material 200.

The first radiator 310 is formed as a folded line on the first dielectric 100 to operate in a DCS (Digital Communication System: 1,710 to 1,880 MHz) / PCS (Personal Communication Services: 1,850 to 1,990 MHz) bands. .

In particular, since the first radiator 310 is formed on the first dielectric 100 having a low dielectric constant, the efficiency of the antenna can be increased and bandwidth can be widened.

The second radiator 320 is formed as a folded line on the second dielectric 200 to operate in the global system for mobile communication (GSM) band 824 to 960 MHz.

In addition, since the second dielectric 200 is coupled to the outer periphery of the first dielectric 100 having a low permittivity, the resonance length of the second radiator 320 of the low frequency GSM band can be reduced. The folded line length of the two radiators 320 can be miniaturized.

In addition, the first radiator 310 may be formed on the first dielectric 100 having the low dielectric constant to improve the efficiency of the antenna and widen the bandwidth.

The power supply unit 400 is formed at the first stage where the first and second radiators 310 and 320 are formed to feed signals supplied from the outside to the first and second radiators 310 and 320.

In addition, it can be seen that the first and second radiators 310 and 320 are divided and divided from the feed part 400.

Therefore, the size of the antenna can be reduced and the bandwidth of the high frequency (DCS / PCS) band can be widened by using the second dielectric 200 having a high dielectric constant only in a partially required portion.

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 and the technical spirit and field of the present invention. 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.

 As described above, the present invention not only has the effect of optimizing utilization of space by combining first and second dielectrics having different dielectric constants on the same plane and forming a radiator on the first and second dielectrics. By operating the first radiator in a specific frequency band corresponding to the first dielectric and the second radiator in another specific frequency band corresponding to the second dielectric, miniaturization of the antenna is achieved and the overall characteristics of the antenna are improved. It has the effect of operating in multiple bands.

Claims (5)

A first dielectric having a low dielectric constant; A second dielectric coupled to the first dielectric and having a high dielectric constant; A radiator formed on a top surface of the first and second dielectrics in a single pattern of folded lines; And A multi-band antenna using a heterogeneous dielectric, characterized in that consisting of a feeder for feeding a signal connected to one side of the radiator. The method of claim 1, The radiator includes a first radiator formed on the first dielectric; And A multi-band antenna using a heterogeneous dielectric, characterized in that consisting of a second radiator formed on the second dielectric. The method of claim 2, And the first radiator is operated in the DCS and PCS bands. The method of claim 2, And the second radiator is operated in a GSM band. The method of claim 1, And wherein the second dielectric is formed at a portion of an outer portion of the first dielectric.

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