EP1298760A1 - Antenne directionnelle miniaturisée - Google Patents

Antenne directionnelle miniaturisée Download PDF

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Publication number
EP1298760A1
EP1298760A1 EP02102390A EP02102390A EP1298760A1 EP 1298760 A1 EP1298760 A1 EP 1298760A1 EP 02102390 A EP02102390 A EP 02102390A EP 02102390 A EP02102390 A EP 02102390A EP 1298760 A1 EP1298760 A1 EP 1298760A1
Authority
EP
European Patent Office
Prior art keywords
substrate
directional antenna
base plate
circuit board
metallization
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.)
Ceased
Application number
EP02102390A
Other languages
German (de)
English (en)
Inventor
Thomas Purr
Rainer Pietig
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Philips Corporate Intellectual Property GmbH
Koninklijke Philips Electronics NV
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 Philips Intellectual Property and Standards GmbH, Philips Corporate Intellectual Property GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP1298760A1 publication Critical patent/EP1298760A1/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements

Definitions

  • the invention relates to a miniaturized directional antenna with a ceramic substrate at least one resonant conductor track structure, in particular for use in high-frequency and microwave range.
  • the invention further relates to a printed circuit board (PCB - printed circuit board) for surface mounting (SMD - surface mounted device) of electrical and / or electronic components with such an antenna.
  • PCB - printed circuit board printed circuit board
  • SMD surface mounted device
  • Wireless radio networking is experiencing in modern telecommunications and increasing Dimensions in consumer electronics are becoming increasingly important become electromagnetic waves in the high frequency and microwave range for transmission of information used.
  • Examples of this are the cellular bands that are in Europe in the range between approximately 880 and 960 MHz (GSM 900) and between approximately 1710 and 1880 MHz (DCS1800) and about 1850 and 1990 MHz (PCS1900) are the GPS navigation signals, which are emitted in a frequency band at around 1573 MHz, and the Bluetooth band in the frequency range between about 2400 MHz and 2500 MHz, the is used for data exchange between individual devices.
  • the electronic components used for this are getting higher and higher Requirements in particular with regard to the degree of miniaturization, the cost-effective Mountability and electrical performance.
  • the field of antennas come for use in future cell phones as additional requirements
  • An object on which the invention is based is therefore an antenna at the beginning to create the type mentioned, the increased efficiency and improved Directional characteristic in a preferred direction.
  • an antenna of the type mentioned is to be created, in which in relative impedance matching can be carried out in a simple manner.
  • the invention is also intended to create an antenna of the type mentioned at the beginning, with which can achieve a relatively wide range.
  • an antenna of the type mentioned at the outset is also to be created, which is to be used is suitable in several of the above-mentioned frequency bands (multi-band suitability).
  • the invention is also intended to provide a printed circuit board with an antenna of the type mentioned at the outset, with which the above-mentioned goals in particular can be easily reached.
  • a directional antenna with a ceramic Substrate with at least one resonant conductor structure, which is characterized by that an electrically conductive base plate is provided on which the substrate is arranged is, the at least one conductor structure with one end except for the Base plate extends.
  • a major advantage of this solution is that with this antenna a largely only achieved radiation characteristics directed into a half space and thus the Irradiation of electromagnetic waves on a user, for example a cell phone, in which this antenna is installed can be significantly reduced.
  • the embodiment according to claim 2 has the advantage that by a suitable choice of the amount of Substrate a desired bandwidth of the antenna can be achieved.
  • the embodiment according to claim 4 has the advantage that impedance matching is easier Made by changing the supply and thus the capacitive coupling can be.
  • the embodiment according to claim 5 is particularly easy to manufacture, and
  • the antenna according to the invention can be implemented as part of a printed circuit board.
  • the antenna according to the invention comprises an electrically conductive base plate, which according to FIG 1 is formed, for example, by a customary circuit board 1 (carrier) with a metallization 11 is, and a ceramic substrate 2 fastened thereon with a plurality of resonant conductor track structures 3, 4, 5 and a feeder 6.
  • the substrate 2 is, for example, with soldering points (not shown) on the circuit board 1 or the metallization 11 mounted. It is to clarify the course of the conductor track structures shown transparently.
  • the ceramic substrate 2 essentially has the shape of an upright cuboid with a first to fourth, perpendicular to the plane of the circuit board 1 side surface 21, 22, 23, 24, a top 25 and a bottom 26.
  • substrates can also have other geometric shapes, such as rectangular, round, triangular or polygonal cylindrical shapes, each with or without cavities on the resonant conductor track structures with, for example, a spiral course are upset.
  • the substrate 2 has a dielectric constant of ⁇ r > 1 and / or a permeability number of ⁇ r ⁇ 1.
  • Typical materials are high frequency substrates with low losses and low temperature dependence of the high frequency properties (NP0 or so-called SL materials). It is also possible to use substrates whose dielectric number and / or permeability number is set as desired by embedding a ceramic powder in a polymer matrix
  • the conductor track structures 3 to 5, the feed 6 and the other metallizations 11, 12 are essentially made of highly electrically conductive materials such as silver, Copper, gold, aluminum or a superconductor.
  • the first conductor track structure 3 is located on the substrate 2, which is characterized by a first conductor 31 on the top 25 and an adjoining, essentially perpendicular to it down to the metallization 11 second conductor track 32 is formed on the fourth side surface 24 of the substrate 2.
  • the second trace structure 4 comprises a first conductor track 41 on the top 25 and an adjoining, second, running perpendicular to it down to the metallization 11 Conductor 42 on the second side surface 22 of the substrate 2.
  • the third conductor structure 5 is in turn by a first conductor 51 on the top 25 and a adjoining, essentially perpendicularly down to the metallization 11 running second conductor track 52 on the second side surface 22 of the substrate 2 educated.
  • the second conductor tracks 32, 42, 52 are each preferably by soldering or contacted in another way with the metallization 11.
  • the conductor track structures 3, 4 and 5 are fed via a feed 6, which with a Metallization plate 61 begins at the lower edge of the first side surface 21 also extends a bit on the underside 26 of the substrate 2 and on the coplanar conductor track 12 is soldered onto the circuit board 1.
  • a Metallization plate 61 is a first Conductor 62 connected to the second side surface 22 in the region of the edge to the bottom 26 runs until a second conductor track 63 connects perpendicularly thereto, which opens the second side surface 22 extends a bit towards the top 25.
  • the conductor track structures 3, 4 and 5 are fed in a capacitive manner via the Feed 6, an impedance matching over the distance of this feed 6 from the Conductor structures 3, 4 and 5 and thus essentially over the length of the first and second conductor 62, 63 can be reached.
  • This coupling and thus the impedance matching can also be carried out when the antenna is installed, by shortening the length of the second conductor track 63 with a laser beam, for example
  • the electrical principle of the antenna is based on the excitation of quarter-wave resonances on each of the substantially L-shaped conductor structures 3, 4 and 5, their respective length taking into account the dielectric constant or the permeability number of the substrate material is dimensioned according to the desired resonance frequency.
  • the bandwidth of the antenna can be influenced by changing the height of the substrate 2. The connection applies here that the bandwidth becomes larger, the larger is the height of the substrate, that is, the greater the distance between the first conductor tracks 31, 41, 51 of the metallization 11.
  • the first, longer conductive path structure 3 serves to excite a resonance in the GSM900 band, while the two shorter ones, that is, the second and third conductor structure 4, 5 to excite resonances in higher frequency bands like that DCS1800 or the PCS1900 band.
  • the metallization 11 serving as a reflector or shield was located on a conventional printed circuit board, the metallization occupying an area of approximately 90 by 35 mm 2 and the substrate having a length of 24 mm, a width of 4 mm and a height of 10 mm would have.
  • the antenna was operated in the frequency range around 900 MHz, among other things.
  • the antenna according to the invention is preferably printed as part or in an area Circuit board (PCB - printed circuit board) realized in addition to the metallization 11 further electrical and / or electronic components, for example for a mobile telecommunications device of the type mentioned carries.
  • PCB - printed circuit board an area Circuit board

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
EP02102390A 2001-09-29 2002-09-27 Antenne directionnelle miniaturisée Ceased EP1298760A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148370A DE10148370A1 (de) 2001-09-29 2001-09-29 Miniaturisierte Richtantenne
DE10148370 2001-09-29

Publications (1)

Publication Number Publication Date
EP1298760A1 true EP1298760A1 (fr) 2003-04-02

Family

ID=7700957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02102390A Ceased EP1298760A1 (fr) 2001-09-29 2002-09-27 Antenne directionnelle miniaturisée

Country Status (7)

Country Link
US (1) US6759988B2 (fr)
EP (1) EP1298760A1 (fr)
JP (1) JP2003188624A (fr)
KR (1) KR20030028402A (fr)
CN (1) CN1409438A (fr)
DE (1) DE10148370A1 (fr)
TW (1) TWI223910B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2323217A1 (fr) * 2009-11-13 2011-05-18 Research In Motion Limited Antenne pour communication mimo multimodale dans des dispositifs portables
EP2665124A1 (fr) * 2012-05-18 2013-11-20 Nokia Corporation Antenne
US8754814B2 (en) 2009-11-13 2014-06-17 Blackberry Limited Antenna for multi mode MIMO communication in handheld devices

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7275602B2 (en) * 1999-12-22 2007-10-02 Weatherford/Lamb, Inc. Methods for expanding tubular strings and isolating subterranean zones
US6809687B2 (en) * 2001-10-24 2004-10-26 Alps Electric Co., Ltd. Monopole antenna that can easily be reduced in height dimension
DE10247297A1 (de) * 2002-10-10 2004-04-22 Philips Intellectual Property & Standards Gmbh Empfangsmodul
JP2004266333A (ja) * 2003-01-30 2004-09-24 Matsushita Electric Ind Co Ltd アンテナ装置
DE102004029440A1 (de) * 2004-06-18 2006-01-12 Infineon Technologies Ag Sende-/Empfangs-Einrichtung
US7663555B2 (en) 2004-10-15 2010-02-16 Sky Cross Inc. Method and apparatus for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US7834813B2 (en) * 2004-10-15 2010-11-16 Skycross, Inc. Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US8000737B2 (en) * 2004-10-15 2011-08-16 Sky Cross, Inc. Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
KR100707242B1 (ko) * 2005-02-25 2007-04-13 한국정보통신대학교 산학협력단 유전체 칩 안테나
US7443345B2 (en) * 2005-05-18 2008-10-28 Hitachi Cable, Ltd. Antenna device
TWI358156B (en) * 2007-05-07 2012-02-11 Hon Hai Prec Ind Co Ltd Antenna
US20090295541A1 (en) * 2008-05-27 2009-12-03 Intellidot Corporation Directional rfid reader
KR101615760B1 (ko) 2009-07-22 2016-04-27 삼성전자주식회사 이동통신 단말기의 안테나 장치 제조 방법
CN102035070B (zh) * 2009-09-28 2014-01-01 深圳富泰宏精密工业有限公司 天线组件
TWI423520B (zh) * 2009-12-31 2014-01-11 Acer Inc 行動通訊裝置
TWI528631B (zh) * 2013-04-24 2016-04-01 智易科技股份有限公司 平面倒ｆ型天線
KR101538158B1 (ko) * 2013-08-30 2015-07-22 대구대학교 산학협력단 세라믹 칩형 엘티이 단일 대역 안테나
CN105243705A (zh) * 2015-08-29 2016-01-13 广东名门锁业有限公司 设有定向蓝牙天线的智能锁具
TWI553963B (zh) * 2015-10-06 2016-10-11 銳鋒股份有限公司 十頻段天線
US20170149136A1 (en) 2015-11-20 2017-05-25 Taoglas Limited Eight-frequency band antenna
US9755310B2 (en) 2015-11-20 2017-09-05 Taoglas Limited Ten-frequency band antenna
US11289195B2 (en) * 2020-08-09 2022-03-29 Kevin Patel System for remote medical care

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790663A1 (fr) * 1996-02-13 1997-08-20 Murata Manufacturing Co., Ltd. Antenne pour montage en surface et appareil de communication utilisant celle-ci
JPH114113A (ja) * 1997-04-18 1999-01-06 Murata Mfg Co Ltd 表面実装型アンテナおよびそれを用いた通信機
WO2000054367A1 (fr) * 1999-03-05 2000-09-14 Telital R & D Denmark A/S Systeme d'antenne a microbandes pour dispositif ce communication
WO2001026181A1 (fr) * 1999-10-06 2001-04-12 Rangestar Wireless, Inc. Resonateur quart d'onde monobande et multibande

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
JP3147728B2 (ja) * 1995-09-05 2001-03-19 株式会社村田製作所 アンテナ装置
AU2001271193A1 (en) * 2000-08-07 2002-02-18 Telefonaktiebolaget Lm Ericsson Antenna
DE10049844A1 (de) * 2000-10-09 2002-04-11 Philips Corp Intellectual Pty Miniaturisierte Mikrowellenantenne
DE10143168A1 (de) * 2001-09-04 2003-03-20 Philips Corp Intellectual Pty Schaltungsplatine und SMD-Antenne hierfür
KR100444219B1 (ko) * 2001-09-25 2004-08-16 삼성전기주식회사 원형편파용 패치 안테나

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0790663A1 (fr) * 1996-02-13 1997-08-20 Murata Manufacturing Co., Ltd. Antenne pour montage en surface et appareil de communication utilisant celle-ci
JPH114113A (ja) * 1997-04-18 1999-01-06 Murata Mfg Co Ltd 表面実装型アンテナおよびそれを用いた通信機
WO2000054367A1 (fr) * 1999-03-05 2000-09-14 Telital R & D Denmark A/S Systeme d'antenne a microbandes pour dispositif ce communication
WO2001026181A1 (fr) * 1999-10-06 2001-04-12 Rangestar Wireless, Inc. Resonateur quart d'onde monobande et multibande

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2323217A1 (fr) * 2009-11-13 2011-05-18 Research In Motion Limited Antenne pour communication mimo multimodale dans des dispositifs portables
US8754814B2 (en) 2009-11-13 2014-06-17 Blackberry Limited Antenna for multi mode MIMO communication in handheld devices
EP2665124A1 (fr) * 2012-05-18 2013-11-20 Nokia Corporation Antenne
US8896489B2 (en) 2012-05-18 2014-11-25 Nokia Corporation Antenna
US9099774B2 (en) 2012-05-18 2015-08-04 Nokia Technologies Oy Antenna

Also Published As

Publication number Publication date
US6759988B2 (en) 2004-07-06
KR20030028402A (ko) 2003-04-08
US20030063033A1 (en) 2003-04-03
TWI223910B (en) 2004-11-11
CN1409438A (zh) 2003-04-09
DE10148370A1 (de) 2003-04-10
JP2003188624A (ja) 2003-07-04

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