EP1184935A1 - Mäanderförmige Antenne für Mobiltelefon - Google Patents

Mäanderförmige Antenne für Mobiltelefon Download PDF

Info

Publication number
EP1184935A1
EP1184935A1 EP00118271A EP00118271A EP1184935A1 EP 1184935 A1 EP1184935 A1 EP 1184935A1 EP 00118271 A EP00118271 A EP 00118271A EP 00118271 A EP00118271 A EP 00118271A EP 1184935 A1 EP1184935 A1 EP 1184935A1
Authority
EP
European Patent Office
Prior art keywords
antenna
stage type
edge part
type antenna
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00118271A
Other languages
English (en)
French (fr)
Inventor
Hong-Doo Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP00118271A priority Critical patent/EP1184935A1/de
Publication of EP1184935A1 publication Critical patent/EP1184935A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • 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
    • H01Q1/244—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 extendable from a housing along a given path

Definitions

  • the present invention relates to a radiotelephone, and more particularly, to an antenna assembly structure of a radiotelephone with an improved structure.
  • a radiotelephone such as a handheld telephone, a portable telephone, a PCS telephone or a cellular telephone, etc. is being widely spread as a personal mobile communication unit. People living in rather various life patterns and busy social life according to an advanced and civilized society utilize the radiotelephone more frequently with more time to execute a mobile telephone conversation or a data communication in radio with their desired parties.
  • an antenna part such as an antenna assembly body etc. is the device having charge of a very important function in performing a bilateral communication.
  • the antenna part is designed to receive an electric signal supplied from an electronic circuit block such as a control circuit etc. to effectively radiate radio wave on the basis of a determined characteristic in a determined direction, in performing a transmission, and is also designed so as to receive in optimum radio wave required among radio wave flowing in from a space in performing a receipt.
  • the antenna assembly body of the radiotelephone is typically formed by a combinational structure of a rod antenna and a helical antenna.
  • the helical antenna is generally installed in the inside of an antenna cover projected from an upper part of the radiotelephone main body, and the rod antenna is set to be extended upwards through an inner diameter of the helical antenna in the instrumental main body or to be retracted inside the instrumental main body.
  • the helical antenna has an aperture diameter gapped by a constant distance centering on the rod antenna and is formed as a helical line wound by the given number.
  • the rod antenna In case the rod antenna is retracted into the instrumental main body, the rod antenna is electrically isolated from the helical antenna, which is generally named a stand-by mode. While, in case the rod antenna is extended from the instrumental main body, the rod antennal is electrically connected with the helical antenna, which is generally named a conversation mode.
  • An antenna assembly body gained by a combination of the rod and helical antennas is provided to transmit and receive linear polarization signals respectively appropriate to the conversation and stand-by modes.
  • the conventional helical antenna is generally manufactured by an insert molding method, that is, it is obtained by inserting a helical spring into a mold based on a constant shape and injecting molding material to be provided as an antenna cover into the inside of an injection aperture of the mold, thereby in one body shape.
  • a molding pressure within the mold becomes very large, which may cause some change from a designed size of the helical spring.
  • the helical spring inserted then bound with the molding material may be changed in the interior and exterior aperture diameters or in a peach thereof. In this case, a frequency deviation in the transmission and receipt becomes serious even in the same product group, thus an inferiority rate is increased in calibrating a finished product.
  • the manufacture of the helical antenna by the insert molding method causes a manufacturing cost to be heightened and a manufacturing time to be comparatively lengthened. Therefore, an improved technique to settle such problems in this field is required essentially.
  • antenna characteristics in the conventional helical antenna for example, a gain, a radiation pattern relating to a directivity, a polarization characteristic and an antenna efficiency, are wholly improved.
  • Another object of the present invention is to provide an antenna assembly structure of a radiotelephone capable of improving an antenna characteristic, productivity and assembling nature.
  • a still another object of the present invention is to provide an improved antenna structure employing a stage type antenna instead of a helical antenna.
  • a further object of the invention is to provide an antenna assembly structure of a portable radiotelephone and its perfume diffusing method, in which an attachment or detachment thereof, or its exchange is free without influencing upon a small-sized instrument formation or a conversation over the telephone.
  • an antenna assembly structure of a radiotelephone comprises a rod antenna; a stage type antenna based on a story structure gained by alternately connecting a plurality of stages having partially opened respective loop shapes in a confronted direction through a use of connective parts; and a stage type antenna cover having a central hole into which the rod antenna is extendable upwards from an instrumental main body and having an internal space for accepting the stage type antenna, the stage type antenna cover being combinedly fixed to the instrumental main body.
  • this antenna assembly structure of the radiotelephone may further comprise a perfume accepting part which includes an internal space wrapping around the exterior of the stage type antenna cover and having perfume therein, and which also includes a perfume diffusing aperture.
  • a fixing connection part is set to fixedly connect a lower part of the perfume accepting part to the instrumental main body so that the perfume accepting part is combinedly fixed to the instrumental main body.
  • a knob of the rod antenna is provided to open and close the perfume diffusing aperture of the perfume accepting part through an extension or retraction of the rod antenna.
  • a method for manufacturing a stage type antenna of an antenna assembly structure in a radiotelephone comprises the steps of patterning a conductive metal plate into a size determined; forming a stage type antenna by transferring and gradually bending the metal plate patterned so that partially opened individual loop shapes may become a plurality of stages which are alternately connected in a confronted direction to get a stories-type structure; and cutting repeatedly the formed stage type antenna into a constant length unit.
  • material of the stage type antenna is a conductive metal plate such as copper etc. for mass production and a patterning of a stage shape is executed by a mechanical cutting method through a use of a press etc.
  • the antenna assembly body with such construction has advantages of improving a producing and assembling nature without causing a drop of an antenna characteristic.
  • desired perfume based on a solid, liquid or gas state can be diffused outside in an optimum state with a free attachment and detachment, or a free exchange of the assembly body, without influencing upon a small-sized instrumental construction or a conversation over the telephone.
  • Fig. 1 is a solid view of a stage type antenna in accordance with the preferred embodiment of the present invention.
  • a stage type antenna 10 having a stage structure, namely, a story structure, which is entirely different from a structure of a conventional helical antenna.
  • stage type antenna is definitely discriminated from the helical antenna having a conventional spiral structure, that is, the stage type antenna is realized by alternately connecting a plurality of stages respectively having a partially opened ring or loop shape in a confronted direction through a use of connective parts and also respective turns of the stages are provided horizontally so as to gain a parallel structure among adjacent stages, escaping from the helical structure having a lead.
  • a reference number 4 or 5 indicates the connective parts.
  • One individual stage has an opened mostly-circle shape formed in parallel and includes a first edge part 2 or 3 as a starting edge part of the opened curve line and a second edge part as an end edge part of the opened curve line.
  • the first edge part is gapped from the second edge part by a given gap G shown in the drawing.
  • a first edge part 6 or 7 of an upper stage adjacent to and gapped by a distance T2 from the above stage is connected to the second edge part confronted with the first edge part 2,3 through the connective part 4 or 5, wherein the connective part alternately connects the plurality of stages with one another in a confronted direction.
  • Fig. 2 presents a spread view for the stage type antenna of Fig. 1, as a development view, which becomes a source plate for a manufacture of an antenna.
  • a reference character L indicates a size of deciding an aperture diameter of the stage type antenna 10.
  • the size L becomes about 8.32mm.
  • an internal aperture diameter may be about 2.65mm and its thickness can be 0.3mm, and an outer aperture diameter may be about 3.25mm.
  • T3 and T2 may be 0.7mm individually.
  • the size L becomes 17mm.
  • the internal aperture diameter may be about 5.4mm
  • the thickness can be 0.3mm
  • the outer aperture diameter may be about 6.0mm.
  • T3 and T2 may be 0.5mm individually, commonly.
  • a pattern of Fig. 2 is gained by using, as raw material, metal material satisfied in an electric conduction extent, for example, a metal plate containing a copper component, then patterning it by a determined size through a mechanical cutting process method such as by a press etc. to thus get the patterns at mass production. It will be remarkable that the patterned metal plate shown in Fig. 2 is transferred and gradually bent by using a jig having a circular shape thereby the stage type antenna 10 of Fig. 1 is manufactured.
  • This bending process is the plastic working gained by an excess of a plasticity limitation for the metal plate, and in this working, it is formed a story structure in which the plurality of stages individually having a partially opened loop shape are alternately connected one another in a confronted direction.
  • a patterning working and a bending working are executed in a consecutive process, then in a final completion procedure, it is cut by a unit of a constant length in order.
  • the unit stage part includes a first loop part 2 horizontally formed as an opened curve line of a circular shape and composed of a first edge part as a starting edge part of the opened curve line and a second edge part as an end edge part of the opened curve line; a second loop part 6 set horizontally, the second loop part 6 actually having the same shape as the first loop part; and a connective part 4 for connecting the second edge part of the first loop part and a first edge part of the second loop part each other, vertically against the horizontal formation of the stages.
  • Fig. 3 depicts plane and front views for the stage type antenna of Fig. 1, and the plane view is shown in an upper part of the drawing and the front view is shown in a lower part of the drawing.
  • a reference number D1 indicates an internal diameter of the stage type antenna and a reference number D2 represents an outer diameter thereof.
  • a reference character G provides a gap equal to the reference character G shown in Fig. 1, and becomes about 0.3mm in a case of the cellular telephone.
  • This shape has a characteristic of a nondirectional antenna in which horizontal and vertical radiation patterns can be transmitted and received simultaneously.
  • a normal mode performing a radiation in a vertical direction against an axis direction and an axis mode having a directivity to an axis direction do not fall behind the conventional helical antenna, in their function.
  • a radiation pattern has a doughnut shape centering around the antenna, and a normal mode which has a butterfly shape shown in a vertically sectional state and has a circle shape shown in a horizontally sectional state, is used.
  • the antenna 10 has two electric field components having a phase difference of vertical and horizontal angles as above-mentioned, therefore, signals can be smoothly received thereto even though the telephone is positioned at any place.
  • stage type antenna 10 was improved in part in its characteristic by testing a return loss, a VSWR and a Smith chart in comparison with the conventional helical antenna.
  • the following table 1 represents a return loss and a VSWR provided in the cellular telephone.
  • An antenna characteristic in the communication terminal decides a radiation pattern, a polarization characteristic and an antenna efficiency which are generally related to a gain and a directivity of an antenna.
  • a bandwidth is increased in embodying a single band, and a low cost and a small-sized construction thereof can be realized, and it is also applicable to frequency of a cellular telephone, a GSM, a PCS and an IMT-2000 of base and top types, etc.
  • the stage pattern antenna provided in this embodiment of the invention is not manufactured by an insert molding method, that is, it can be settled such a problem caused in the conventional technique as a size change occurring due to an injection pressure, to thus lessen an inferiority rate.
  • only an antenna cover may be manufactured by a general injection system.
  • the vertical and horizontal polarization can be transmitted and received at the same time therein, and the nondirection, the utmost lightened-weight and the utmost small-sized construction can be realized to provide an advantage proper to a mass production automatic process.
  • the antenna assembly body is constructed by combining the inventive stage type antenna with the general rod antenna.
  • Fig. 4 is a sectional view showing an antenna assembly structure gained by employing the stage type antenna of Fig. 1 in the conventional radiotelephone.
  • reference numbers are represented as 10 for the inventive stage type antenna, 101 for a main body housing of the radiotelephone, 102 for a metal fitting, 103 for an antenna clip, 104 for a power supplying circuit, 202 for a first metal fitting, 203 for a second metal fitting, 204 for a snap-in recess, 205 for the stage type antenna cover, 301 for the rod antenna, 302 for a rod antenna cover, 303 for a metal stopper, 304 for a knob and 305 for a second snap-in projection part.
  • the antenna cover 205 has a formation of a central hole in which the rod antenna 301 is extendable upwards from an instrumental main body 101.
  • the antenna cover 205 is combinedly fixed to the instrumental main body 101 through the metal fitting 102,202.
  • Fig. 4 in the present invention has a similar structure to a drawing disclosed in U.S. Patent No. 5,764,191 granted on June 09, 1998.
  • the present invention there is a new characteristic by employing the noble stage type antenna definitely different from the helical antenna disclosed in this U.S. patent granted.
  • Fig. 5 It can be constructed as shown in Fig. 5 a structure changed from the antenna assembly structure of Fig. 4, which is capable of diffusing outside desired perfume in optimum with its free attachment or detachment or exchange, without influencing upon a small-sized instrumental construction and a conversation over the telephone.
  • Fig. 5 is a sectional view showing an antenna assembly structure provided by employing the stage type antenna of Fig. 1 in the radiotelephone having a perfume diffusion function.
  • Fig. 5 shows an internal space to accept the stage type antenna 10 gapped by a constant distance centering around the rod antenna 301.
  • the metal fitting 202 is provided to completely fix a perfume accepting part 405 of the inventive embodiment to the main body 101.
  • the perfume accepting part 405 includes an internal space wrapping around the exterior of the antenna cover and putting with perfume 500 and also includes a perfume diffusing aperture 404.
  • the perfume accepting part 405 may be a receptacle made of ABS, PP, PC or polyurethane material, which is put with perfume into, and this perfume accepting part 405 may be manufactured by the injection molding method.
  • the perfume accepting part 405 should be maintained in a sealing state in case liquid perfume is put therein, and a perfume diffusion controlling film 401 made of sponge or cotton can be installed in the internal space of the perfume accepting part 405 to prevent the perfume from being
  • the perfume accepting part 405 is closely fixed to the instrumental main body 101 through a fixing force of the metal fitting 202.
  • the perfume accepting part 405 is exchangeable freely and is also free in its attachment and detachment by a screw combination.
  • the knob 304 of the rod antenna 301 opens or closes the perfume diffusing aperture 404 of the perfume accepting part 405 according to an extension and retraction thereof. That is, perfume is diffused when a user extends the antenna upwards from the main body of the radiotelephone, and the perfume is not diffused when the antenna is retracted into the main body of the radiotelephone. According to that, perfume having desired fragrance can be diffused with an optimum quantity to the outside suitably.
  • the metal stopper 303 may be combined by screw with a screw unit of the rod antenna 301 so as to enable to pull the rod antenna from the perfume accepting part 405 to smoothly replace the receptacle with another when the perfume is used up, wherein the perfume may be one out of solid, liquid and gas state, and herewith it is desirable that the state of perfume is maintained as a gel state.
  • the antenna assembly structure of the present invention characteristic, productivity and assembling nature of an antenna are improved and an inferiority rate is reduced, to thereby gain an effect of curtailing a manufacture cost of a radiotelephone and diffusing desired perfume to the outside in optimum with its free attachment or detachment or exchange, without influencing upon a small-sized instrumental construction and a conversation over the telephone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
EP00118271A 2000-09-04 2000-09-04 Mäanderförmige Antenne für Mobiltelefon Withdrawn EP1184935A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00118271A EP1184935A1 (de) 2000-09-04 2000-09-04 Mäanderförmige Antenne für Mobiltelefon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00118271A EP1184935A1 (de) 2000-09-04 2000-09-04 Mäanderförmige Antenne für Mobiltelefon

Publications (1)

Publication Number Publication Date
EP1184935A1 true EP1184935A1 (de) 2002-03-06

Family

ID=8169625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118271A Withdrawn EP1184935A1 (de) 2000-09-04 2000-09-04 Mäanderförmige Antenne für Mobiltelefon

Country Status (1)

Country Link
EP (1) EP1184935A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969730A (en) * 1975-02-12 1976-07-13 The United States Of America As Represented By The Secretary Of Transportation Cross slot omnidirectional antenna
JPH07115561A (ja) * 1993-08-31 1995-05-02 Minoru Uchiumi 腕輪式超小型テレオ
US5446469A (en) * 1993-01-14 1995-08-29 Nippon Antenna Co., Ltd. Extendible whip antenna
GB2292271A (en) * 1994-08-09 1996-02-14 Chin Kuo Hung Mobile telephone battery charger also usable as a light and incorporating fragrance releasing agent
EP0843377A1 (de) * 1996-11-19 1998-05-20 Siemens Aktiengesellschaft Kontaktierung einer innerhalb eines Mobilteils eines Kommunikationsendgerätes angeordneten Antenne
US6069592A (en) * 1996-06-15 2000-05-30 Allgon Ab Meander antenna device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969730A (en) * 1975-02-12 1976-07-13 The United States Of America As Represented By The Secretary Of Transportation Cross slot omnidirectional antenna
US5446469A (en) * 1993-01-14 1995-08-29 Nippon Antenna Co., Ltd. Extendible whip antenna
JPH07115561A (ja) * 1993-08-31 1995-05-02 Minoru Uchiumi 腕輪式超小型テレオ
GB2292271A (en) * 1994-08-09 1996-02-14 Chin Kuo Hung Mobile telephone battery charger also usable as a light and incorporating fragrance releasing agent
US6069592A (en) * 1996-06-15 2000-05-30 Allgon Ab Meander antenna device
EP0843377A1 (de) * 1996-11-19 1998-05-20 Siemens Aktiengesellschaft Kontaktierung einer innerhalb eines Mobilteils eines Kommunikationsendgerätes angeordneten Antenne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29) *

Similar Documents

Publication Publication Date Title
US6329962B2 (en) Multiple band, multiple branch antenna for mobile phone
US6031493A (en) Antenna for two frequency bands
CN1153313C (zh) 用于移动终端的微型印刷螺旋天线
EP1095422B1 (de) Doppelbandantenne mit zwei gedruckten spiralelementen
CN103700925B (zh) 一种全金属移动终端双缝天线
US6327485B1 (en) Folding mobile phone with incorporated antenna
EP1677387A1 (de) Tragbares Funkgerät mit eingebautem Antennenmodul einschliesslich Bluetooth-Strahlerelement
KR100602539B1 (ko) 이동 전화용 멀티플 밴드, 멀티플 브랜치 안테나
KR20010043889A (ko) 무선 통신 디바이스용 고효율 다중대역 안테나
US20030122722A1 (en) Flat-plate multiplex antenna and portable terminal
AU1773300A (en) A communication device
US6445347B1 (en) Portable radio devices and manufacturing method of portable radio devices body
EP0896746A1 (de) Antenne mit anpassungsmittel
KR100634883B1 (ko) 이중대역 칩 안테나 모듈
US20020190916A1 (en) Two-resonance antenna
EP1184935A1 (de) Mäanderförmige Antenne für Mobiltelefon
Lee et al. Internal WWAN clamshell mobile phone antenna using a current trap for reduced ground plane effects
CN111725614A (zh) 一种用于手表的小型化全频段网络天线及可穿戴电子设备
JPH08288722A (ja) 多重アーム・アンテナ素子を収容するレドームおよびその方法
CN209592302U (zh) 一种用于手表的小型化全频段网络天线及可穿戴电子设备
KR20070070549A (ko) 슬롯형 소형 내장 안테나
WO2013167925A1 (en) Looped multi-branch planar antennas having a floating parasitic element and wireless communications devices incorporating the same
KR100326412B1 (ko) 스테이지 타입 안테나를 채용하는 무선통신 단말기의안테나 조립체 구조
KR200211824Y1 (ko) 스테이지 타입 안테나를 채용하는 무선통신 단말기의안테나 조립체 구조
EP1267439A1 (de) Mehrbandantenne mit zwei konzentrischen verschachtelten Antennen, wobei die äussere eine mäanderförmige Antenne ist

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020907