KR20020015868A - International Mobile Telecommunication-2000 terminal - Google Patents

International Mobile Telecommunication-2000 terminal Download PDF

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Publication number
KR20020015868A
KR20020015868A KR1020000048998A KR20000048998A KR20020015868A KR 20020015868 A KR20020015868 A KR 20020015868A KR 1020000048998 A KR1020000048998 A KR 1020000048998A KR 20000048998 A KR20000048998 A KR 20000048998A KR 20020015868 A KR20020015868 A KR 20020015868A
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KR
South Korea
Prior art keywords
antenna
terminal
imt
circuit board
printed
Prior art date
Application number
KR1020000048998A
Other languages
Korean (ko)
Inventor
김종옥
Original Assignee
김대기
주식회사 신세기통신
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Priority to KR1020000048998A priority Critical patent/KR20020015868A/en
Publication of KR20020015868A publication Critical patent/KR20020015868A/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/245—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Support Of Aerials (AREA)

Abstract

PURPOSE: An IMT(international mobile telecommunication)-2000 terminal is provided to reduce size and volume of the terminal, while preventing a main beam of electromagnetic field from radiating toward a user and eliminating protrusion of an antenna. CONSTITUTION: An IMT-2000 terminal comprises, inside the IMT-2000 terminal, an antenna composed of a multi-layer print circuit board(205) on which micro strip line is printed and many electric components are wired. The antenna is a duplex antenna(210) capable of transmitting and receiving simultaneously. On one side of the print circuit board(205), on which the duplex antenna(210) is wired, a circuit is wired. On the other side of the print circuit board(205), a reflector(207) is printed to have its direction to increase radiation of forward electric waves and decrease radiation of backward electric waves. The reflector(207) reduces electromagnetic interference by 20 dB, i. e., 100 times.

Description

아이엠티-2000 단말기{International Mobile Telecommunication-2000 terminal}IMT-2000 terminal {International Mobile Telecommunication-2000 terminal}

본 발명은 안테나에 관한 것으로, 보다 상세하게는 아이엠티(International Mobile Telecommunication, IMT)-2000 단말기의 내부에 내장되어 있으며 통화자에게 전자파의 영향을 최소화할 수 있는 안테나에 관한 것이다.The present invention relates to an antenna, and more particularly, to an antenna which is embedded in an International Mobile Telecommunication (IMT) -2000 terminal and which can minimize the influence of electromagnetic waves on a caller.

일반적으로 이동통신 단말기를 휴대하는데 불편함을 개선하기 위해, 소형 사이즈를 추구함과 동시에 휴대용 이동통신 단말기의 감도를 향상시킬 수 있도록 비교적 작은 길이를 갖는 안테나를 이동통신 단말기의 케이스에 장착하였다.In general, in order to improve inconvenience in carrying a mobile communication terminal, an antenna having a relatively small length is mounted in a case of a mobile communication terminal so as to pursue a small size and to improve the sensitivity of the mobile communication terminal.

상기 안테나는 송수신이 가능한 것으로 도 1에 도시하였듯이, 통화를 할 경우에는 송수신이 잘 되도록 인출하고, 휴대 시에는 이동통신 단말기의 부피를 줄이기 위하여 상기 이동통신 단말기(100)의 내부에 수장되도록 하였다.As shown in FIG. 1, the antenna is capable of transmitting and receiving, and when the call is made, the antenna is withdrawn so that the transmission and reception is performed well, and when it is carried, the antenna is stored inside the mobile communication terminal 100 to reduce the volume of the mobile communication terminal.

도 2는 상기 안테나의 회로도를 도시한 것으로, 송수신안테나(110)에서 수신한 신호는 듀플렉서(115)에서 송수신 분리되어 대역통과필터(117)를 거친 후, 수신기(119)에 입력된다. 반면, 역방향으로는 송신기(111)에서 대역통과필터(113)로 입력된 신호가 듀플렉서(115)를 거쳐서 송수신안테나(110)에서 송신한다.2 illustrates a circuit diagram of the antenna. A signal received by the transmit / receive antenna 110 is transmitted / received by the duplexer 115, passes through a band pass filter 117, and is input to the receiver 119. On the other hand, in the reverse direction, the signal input from the transmitter 111 to the band pass filter 113 is transmitted by the transmit / receive antenna 110 via the duplexer 115.

그러나, 상기 이동통신 단말기에서 상기 송수신안테나(110)를 하나로 구성하기 위하여 송수신단에 넣은 회로에 듀플렉서(115)를 포함하여 구성하였기 때문에 송수신 신호의 손실이 증가한다.However, since the duplexer 115 is included in the circuit put in the transmitting and receiving terminal in order to configure the transmitting and receiving antenna 110 as one in the mobile communication terminal, the loss of the transmitting and receiving signal increases.

그리고, 상기 이동통신 단말기는 외형적으로 안테나가 돌출 되어 있어 휴대의 편리성이 저하되며, 통화 시 인체의 귀에 밀착되면서 안테나에서 방사되는 유해한 전자파가 인체에 직접 흡수되는 문제점이 있었다.In addition, the mobile communication terminal has a problem that the antenna protrudes outwardly, thereby reducing the convenience of carrying and absorbing harmful electromagnetic waves directly emitted from the antenna while being in close contact with the ears of the human body during a call.

또한, 종래의 내장식 안테나를 구비한 휴대폰은 점차 소형화되어 가는 이동통신 단말기의 본체에 휩 안테나를 붙일 경우에 안테나의 길이가 짧아져서, 안테나의 지향성 및 이득이 충분히 얻어지지 않고 무선성능을 약화시킨다.In addition, a conventional mobile phone having a built-in antenna is shortened when the whip antenna is attached to the main body of a mobile communication terminal, which is becoming smaller, thereby weakening wireless performance without sufficiently obtaining the directivity and gain of the antenna. .

본 발명은 상기 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 안테나를 적절하게 구성하여, 전자계의 메인 빔(main beam)의 방향이 이용자의 몸 쪽으로 방사(Radiation)되지 않게 하며, 안테나의 돌출부분을 없애고 크기와 부피를 줄여 이용자가 휴대하기 편리한 휴대폰을 제공하는데 있다.The present invention has been invented to solve the above problems, an object of the present invention is to properly configure the antenna, so that the direction of the main beam of the electromagnetic field is not radiated toward the user's body, It is to provide a cell phone that is convenient for users to carry by eliminating protrusions and reducing size and volume.

상기 목적을 달성하기 위한 본 발명은 인쇄회로기판에 배선되어 송수신안테나로부터 송수신되는 IMT-2000 통신신호를 처리하기 위한 회로부에 있어서, 상기인쇄회로기판의 일면에 배선되어 IMT-2000 통신신호를 송수신하기 위한 송수신안테나; 및 상기 인쇄회로기판의 타면에 프린트된 리플렉터를 포함하는 것을 특징으로 하고,In order to achieve the above object, the present invention provides a circuit unit for processing an IMT-2000 communication signal wired to a printed circuit board to be transmitted and received from a transmission / reception antenna, and wired to one surface of the printed circuit board to transmit / receive IMT-2000 communication signals. Transmit and receive antennas; And a reflector printed on the other side of the printed circuit board,

상기 송수신안테나가 상기 인쇄회로기판 위에 마이크로 스트립 라인으로 프린트됨을 특징으로 한다.The transceiving antenna is printed on the printed circuit board by a micro strip line.

또한, 상기 송수신안테나를 송신안테나와 수신안테나로 분리하여 상기 인쇄회로기판 위에 프린트할 수도 있다.In addition, the transmission and reception antenna may be separated into a transmission antenna and a reception antenna and printed on the printed circuit board.

따라서 본 발명에 의하면, 안테나를 휴대폰에 내장시켜 휴대하는데 편리하다.Therefore, according to the present invention, it is convenient to carry the antenna built into the mobile phone.

도 1은 종래 기술에 따른 안테나 구조를 가진 이동통신 단말기의 구조도이다.1 is a structural diagram of a mobile communication terminal having an antenna structure according to the prior art.

도 2는 종래 기술에 따른 안테나의 회로도이다.2 is a circuit diagram of an antenna according to the prior art.

도 3a는 본 발명에 따른 안테나가 내장된 IMT-2000 단말기의 외형도이다.3A is an external view of an IMT-2000 terminal with an antenna according to the present invention.

도 3b 및 도 3c는 본 발명에 따른 안테나가 내장된 IMT-2000 단말기의 단면도이다.3B and 3C are cross-sectional views of an IMT-2000 terminal with an antenna according to the present invention.

도 4는 본 발명에 따른 안테나의 일실시예이다.4 is an embodiment of an antenna according to the present invention.

도 5는 상기 도 4에 도시된 안테나의 블록 다이어그램이다.FIG. 5 is a block diagram of the antenna shown in FIG. 4.

도 6은 본 발명에 따른 송수신기가 분리된 안테나의 일실시예이다.6 is an embodiment of an antenna in which a transceiver is separated according to the present invention.

도 7은 상기 도 6에 도시된 안테나의 블록 다이어그램이다.FIG. 7 is a block diagram of the antenna shown in FIG. 6.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

100 : 이동통신 단말기100: mobile communication terminal

110, 210 : 송수신 안테나110, 210: transmit and receive antenna

111, 211, 311 : 송신기111, 211, 311: transmitter

113, 117, 213, 217, 313, 317 : 대역통과필터113, 117, 213, 217, 313, 317: bandpass filter

115, 219, 319 : 수신기115, 219, 319: receiver

120, 215, 216, 315, 316 : 정합기120, 215, 216, 315, 316: matcher

130, 230 : 스피커 140, 240 : 정보표시판130, 230: speaker 140, 240: information display board

150, 250 : 버튼 160, 260 : 마이크150, 250: Button 160, 260: Microphone

200 : IMT-2000 단말기200: IMT-2000 terminal

205, 305 : 인쇄회로기판(Print Circuit Board, PCB)205 and 305: Print Circuit Board (PCB)

207 : 리플렉터(reflector)207 reflector

310 : 송신안테나 320 : 수신안테나310: transmitting antenna 320: receiving antenna

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대하여 설명한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

도 3a는 안테나가 내장된 IMT-2000 단말기의 정면 외형을 도시한 것으로, IMT-2000 시스템은 2 GHz 대역의 주파수를 이용한 범세계 이동통신 시스템이다. 상기 IMT-2000 시스템에서 사용하는 주파수는 순방향의 경우 2140 MHz 가 중심주파수이고, 역방향은 1950MHz가 중심주파수이다. 따라서, 안테나의 길이는 λ/2인 경우 약 7 cm 정도이면 되므로, IMT-2000 단말기 내부에 안테나를 구현할 수 있는 것이다.FIG. 3A illustrates an external appearance of an IMT-2000 terminal in which an antenna is embedded, and the IMT-2000 system is a global mobile communication system using a frequency of 2 GHz band. The frequency used in the IMT-2000 system is 2140 MHz in the forward direction and the center frequency in the reverse direction is 1950 MHz. Therefore, since the length of the antenna is about 7 cm in the case of λ / 2, the antenna can be implemented inside the IMT-2000 terminal.

도 3b 및 도 3c는 상기 안테나가 내장된 IMT-2000 단말기의 측면 내부 및 후면 내부를 도시한 것이다.3B and 3C illustrate the inside of the side and the inside of the IMT-2000 terminal in which the antenna is built.

IMT-2000 단말기용 안테나는 각종 전자부품을 배선할 수 있는 다층의 인쇄회로기판(Print-Circuit Board, 205)에 마이크로 스트립 라인(Micro Strip Line)으로 프린트하여 구성한다.The antenna for the IMT-2000 terminal is printed by printing a micro strip line on a multilayer printed circuit board 205 capable of wiring various electronic components.

상기 IMT-2000 단말기용 안테나는 송신 및 수신이 동시에 가능한 송수신안테나(210)이며, 상기 송수신안테나(210)가 배선된 동일면에 회로부를 배선한다.The antenna for the IMT-2000 terminal is a transmission / reception antenna 210 capable of transmitting and receiving at the same time, and wires a circuit part on the same surface to which the transmission / reception antenna 210 is wired.

또한, 상기 인쇄회로기판(205)의 타면에 앞 방향으로 나오는 전파의 복사를 증대시키고 뒤 방향으로 나가는 전파의 복사를 감소시키는 방향을 갖게 되는 리플렉터(207)를 프린트한다. 상기 리플렉터(207)가 있는 경우에는 약 20dB 정도 즉, 100배 정도의 전자파 영향을 줄일 수 있다.In addition, a reflector 207 is printed on the other surface of the printed circuit board 205 to have a direction of increasing radiation of an electric wave coming out in the forward direction and reducing radiation of an electric wave going out in the back direction. If the reflector 207 is present, the electromagnetic wave effects of about 20 dB, that is, about 100 times, can be reduced.

도 4는 상기 IMT-2000 단말기 안테나의 일실시예를 도시한 것이다.4 illustrates an embodiment of the IMT-2000 terminal antenna.

상기 도 4는 전파의 송신 및 수신이 모두 되는 송수신안테나(210)로서, 상기 송수신안테나(210)의 가로의 길이 L1, 세로의 길이L2 는 다음 수학식 1 및 수학식 2에 의하여 정해진다.4 is a transmission / reception antenna 210 in which both transmission and reception of radio waves are performed. The horizontal length L1 and the vertical length L2 of the transmission / reception antenna 210 are determined by Equations 1 and 2 below.

상기 λ1d 는 빛의 속도/송신주파수를 나타내며, α는 정합회로에 따른 지수이다.Λ 1 d represents the speed / transmission frequency of light, and α is an index according to the matching circuit.

상기 λ2d 는 빛의 속도/수신주파수이며, α는 정합회로에 따른 지수이다.Λ 2 d is the speed / receive frequency of light, and α is the exponent according to the matching circuit.

도 5는 IMT-2000 단말기용 안테나 중 송수신안테나와 연결된 회로도를 도시하고 있다.5 is a circuit diagram connected to a transmit / receive antenna of an antenna for an IMT-2000 terminal.

IMT-2000 단말기를 사용하는 사용자가 보낸 정보를 송신하기 위하여 먼저, 상기 정보가 송신기(211)에 입력되면 대역통과필터(213)을 통과하여 정합기(215)로 입력된다. 상기 정합기(215)를 거친 신호는 송수신안테나(210)로 외부로 송신된다.In order to transmit the information sent by the user using the IMT-2000 terminal, first, when the information is input to the transmitter 211, the information is passed through the band pass filter 213 to the matcher 215. The signal passed through the matcher 215 is transmitted to the transmission and reception antenna 210 to the outside.

반면, 외부로부터 상기 IMT-2000 단말기로 입력되는 신호는 송수신안테나(210)로 수신된 후, 정합기(216)로 입력된다. 상기 정합기(216)를 거친 신호는 대역통과필터(217)를 통과하여 수신기(219)로 입력되고 상기 수신기(219)를 통하여 상기 IMT-2000 단말기를 사용하는 사용자에게 신호를 전달하게 된다.On the other hand, the signal input from the outside to the IMT-2000 terminal is received by the transmission and reception antenna 210, and then input to the matcher 216. The signal passed through the matcher 216 is passed through the band pass filter 217 to the receiver 219 and transmits the signal to the user using the IMT-2000 terminal through the receiver 219.

도 6은 도 4의 송신 및 수신을 같이 전송하는 송수신안테나(210)를 송신안테나(310)와 수신안테나(320)로 나누어 인쇄회로기판(305)에 상기 도 4에 도시된 송수신안테나(210)와 같은 방법으로 제작한다.6 is divided into a transmission antenna 310 and a reception antenna 320 for transmitting and receiving the transmission and reception of FIG. 4 to the printed circuit board 305 to the transmission and reception antenna 210 shown in FIG. Produced in the same way.

상기 제작된 송신안테나(310)와 수신안테나(320)는 도 7에 도시된 회로에 각각 연결된다.The manufactured transmit antenna 310 and receive antenna 320 are respectively connected to the circuit shown in FIG.

IMT-2000 단말기 사용자가 송신하고자 하는 신호를 송신기(311)를 통하여 입력하면, 상기 신호는 대역통과필터(313)을 거쳐서 정합기(315)에 입력된다. 상기 입력된 신호는 상기 정합기(315)에서 송신안테나(310)로 송신된다.When the user of the IMT-2000 terminal inputs a signal to be transmitted through the transmitter 311, the signal is input to the matcher 315 through the band pass filter 313. The input signal is transmitted from the matcher 315 to the transmit antenna 310.

또한, 수신안테나(320)로 수신된 신호는 정합기(316)를 거쳐서대역통과필터(317)를 통과한 후, 수신기(319)로 상기 IMT-2000 단말기 사용자에게 신호를 전해준다.In addition, the signal received by the receiving antenna 320 passes through the band pass filter 317 through the matching unit 316, and then transmits the signal to the user of the IMT-2000 terminal to the receiver 319.

이상에서 상세히 설명한 바와 같이, 본 발명의 IMT-2000 단말기용 안테나에 의하면, 안테나를 휴대폰에 내장시켜 휴대의 편리성을 도모했으며, 안테나의 뒷면에 리플렉터를 구비하므로써 전파가 방향성을 갖게 되어 상기 방향성에 의한 방향성 이득을 얻을 수 있다. 또한 상기 방향성에 의하여 기지국의 채널 점유를 최소화할 뿐만 아니라, 전파의 방사(Radiation)를 적절히 조절하여 인체에 미치는 유해를 줄일 수 있다.As described in detail above, according to the antenna for the IMT-2000 terminal of the present invention, the antenna is embedded in a mobile phone for convenient portability, and by providing a reflector on the rear side of the antenna, the radio waves are directional and thus the directionality Directional gain can be obtained. In addition, the directionality not only minimizes channel occupancy of the base station, but also appropriately adjusts radiation of radio waves to reduce harmful effects on the human body.

Claims (3)

인쇄회로기판에 배선되어 송수신안테나로부터 송수신되는 IMT-2000 통신신호를 처리하기 위한 회로부에 있어서,In the circuit portion for processing the IMT-2000 communication signal wired to the printed circuit board and transmitted and received from the transmission and reception antenna, 상기 인쇄회로기판의 일면에 배선되어 IMT-2000 통신신호를 송수신하기 위한 송수신안테나; 및A transmission / reception antenna wired to one surface of the printed circuit board to transmit and receive an IMT-2000 communication signal; And 상기 인쇄회로기판의 타면에 프린트된 리플렉터를 포함하는 IMT-2000 단말기.An IMT-2000 terminal comprising a reflector printed on the other side of the printed circuit board. 제 1항에 있어서, 상기 송수신안테나가 상기 인쇄회로기판 위에 마이크로 스트립 라인으로 프린트됨을 특징으로 하는 IMT-2000 단말기.The IMT-2000 terminal of claim 1, wherein the transmission / reception antenna is printed as a micro strip line on the printed circuit board. 제 1항에 있어서, 상기 송수신안테나를 송신안테나와 수신안테나로 분리하여 상기 인쇄회로기판 위에 프린트함을 특징으로 하는 IMT-2000 단말기.The IMT-2000 terminal of claim 1, wherein the transmitting and receiving antennas are separated into a transmitting antenna and a receiving antenna and printed on the printed circuit board.
KR1020000048998A 2000-08-23 2000-08-23 International Mobile Telecommunication-2000 terminal KR20020015868A (en)

Priority Applications (1)

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KR1020000048998A KR20020015868A (en) 2000-08-23 2000-08-23 International Mobile Telecommunication-2000 terminal

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Application Number Priority Date Filing Date Title
KR1020000048998A KR20020015868A (en) 2000-08-23 2000-08-23 International Mobile Telecommunication-2000 terminal

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KR20020015868A true KR20020015868A (en) 2002-03-02

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KR1020000048998A KR20020015868A (en) 2000-08-23 2000-08-23 International Mobile Telecommunication-2000 terminal

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