EP1614193A1 - Systeme d'antennes a fente rayonnante - Google Patents
Systeme d'antennes a fente rayonnanteInfo
- Publication number
- EP1614193A1 EP1614193A1 EP04725017A EP04725017A EP1614193A1 EP 1614193 A1 EP1614193 A1 EP 1614193A1 EP 04725017 A EP04725017 A EP 04725017A EP 04725017 A EP04725017 A EP 04725017A EP 1614193 A1 EP1614193 A1 EP 1614193A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- antennas
- slot
- slots
- microstrip line
- 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- Withdrawn
Links
- 230000005855 radiation Effects 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 230000010354 integration Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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
- H01Q13/085—Slot-line radiating ends
-
- 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
- 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
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
- H01Q1/2275—Supports; Mounting means by structural association with other equipment or articles used with computer equipment associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
Definitions
- the invention relates to an antenna system and more particularly to antennas with longitudinal radiation.
- PCMCIA port has the advantage of having a compact interface.
- PCMCIA interface it is a good idea to place the antenna at the end of the card so that it is clear of any obstacle in order to be able to radiate correctly.
- FIG. 1 represents a PCMCIA card whose width L w is equal to 54 mm and the length L ⁇ entering the reader is of the order of 83.3 mm.
- the antenna part coming out of the reader should be as compact as possible.
- a constraint on the antenna of such an interface is to have a width which does not exceed the width L w of the PCMCIA card, and a length L ⁇ which is as short as possible.
- the thickness E of the card housing corresponds to a standardized thickness, equal to 5 mm for wireless extensions.
- the constraint of compactness of the antenna system is relatively strong because such a system must integrate a variety of second order antennas in reception and have separate accesses in transmission and in reception.
- the antennas should operate on the widest possible frequency band.
- the antennas must mainly radiate towards the outside of the card in order to reduce interaction with the computer containing the PCMCIA reader.
- the invention proposes a system of antennas with longitudinal radiation where the transmitting and receiving antennas are alternated.
- the invention is an antenna system which comprises a first antenna of a first type, second and third antennas of a second type.
- the first to third antennas are excited slots with longitudinal radiation placed on the same edge of the same substrate.
- the first antenna is placed between the second and third antennas.
- the first antenna is a transmitting antenna and the second and third antennas are receiving antennas.
- the first antenna is offset from the second and third antennas so that the radiating end of the first antenna extends beyond the radiating ends of the second and third antennas, the radiating end of the first antenna being in the radiation areas of the second and third antennas.
- the supply lines of the second and third antennas constitute the same microstrip line.
- the microstrip line constituting the feed lines of the slots of the second and third antennas crosses the slot of the first antenna.
- the crossing is located on the microstrip line at a distance from one end of said line equal to or on the order of a multiple of half the guided wavelength in the microstrip line.
- the crossing is located on the slot at a distance from a closed end of said slot equal to or on the order of a multiple of half the guided wavelength in the slot.
- the ends of the slots of the second and third antennas being located opposite the radiating end, lead to a rupture of the ground plane on which they are drawn forming at this end an open circuit.
- the break in the ground plane can be short-circuited by means of a diode.
- the invention is also a PCMCIA standard card which includes the antenna system.
- FIG. 1 represents a card with PCMCIA standard
- FIGS. 2 to 6 represent different embodiments of an antenna system for a PCMCIA card according to the invention.
- FIG. 2 represents a first embodiment of a slot antenna system placed at the end of a PCMCIA card.
- the electronic transmission reception device connected to said antennas is for example a system operating according to the standard
- a first antenna 10 is used for transmission and second and third antennas 11 and 12 are used for reception.
- the first to third antennas 10 to 12 are slot type antennas with longitudinal radiation, for example Vivaldi type antennas, etched on a ground plane 13.
- the slots 10 to 12 are perpendicular to the outside edge of the substrate corresponding to the outside width of the PCMCIA card. Alternatively, to have a different antenna diversity, the slots 10 to 12 may not be perpendicular to this outer edge of the substrate, while keeping their opening on this same edge.
- the size of the slots is determined to correspond to the desired frequency bands according to a known technique. For example, the slots have a width of 400 ⁇ m on the non-flared part.
- Each slot 10 to 12 has a flared opening placed at the edge of the ground plane 13 and a short-circuit end placed inside the ground plane 13.
- the flared openings are dimensioned for example as indicated in US Pat. No. 6,246,377.
- the flared openings have a length L 0 equal to 12mm and a width W 0 equal to 8mm.
- the spacing of the radiating openings of the second and third slots 11 and 12 is such that one can make the diversity of antennas in reception; they are separated by more than half the average wavelength of the transmission frequency band.
- the first longitudinal radiation slot 10 is offset with respect to the second and third slots with longitudinal radiation 11 and 12 so that the radiating end of the first slot 10 extends beyond the radiating ends of the second and third slots 11 and 12.
- the radiating end of the first slot 10 is in the areas of radiation from the second and third slots 11 and 12.
- a notch 40 forming a demetallization of the ground plane 13 is placed between the first slot 10 and the second slot 11 as well as between the first slot 10 and the third slot 12.
- Such an arrangement slots and two notches provides excellent insulation.
- the first longitudinal radiation slot 10 may not be offset from the second and third longitudinal radiation slots 11 and 12. This does not change the operation of the antenna system.
- a first microstrip line 14 is coupled to the first slot 10 by a Knorr type transition 15.
- the transition 15 is located at a distance from the end of the micro-ribbon line equal to or of the order of an odd multiple of a quarter of the guided wavelength ⁇ m in the micro-ribbon line, and at a distance from the end of the slit equal to or of the order of an odd multiple of a quarter of the guided wavelength ⁇ f in the slit.
- Second and third microstrip lines 16 and 17 are respectively coupled to the second and third slots 11 and 12 by transitions 18 and 19 of Knorr type.
- the transitions 18 and 19 are located at a distance from the end of the microstrip lines 16 and 17 equal to or of the order of an odd multiple of a quarter of the guided wavelength ⁇ m in the microstrip line, and at a distance from the end of the slots 1 1 and 12 equal to or of the order of an odd multiple of a quarter of the guided wavelength ⁇ f in the slots.
- the microstrip lines are dimensioned according to a conventional technique in order to allow the passage of the signals in the frequency bands indicated in table A.
- the microstrip lines 14, 16 and 17 are 520 ⁇ m wide.
- the micro-ribbon lines constitute the accesses of the slot-antennas, also called antenna feed lines.
- FIG. 3 proposes a variant using a switch 20 to switch the second and third microstrip lines 16 and 17 on a common microstrip line 21.
- the switch 20 is a microwave switch of a known type which includes means not shown and which will not be more detailed.
- the first microstrip line 14 is separated into two microstrip lines 14 and 14b in order to cross the second microstrip line 16.
- the connection between the two microstrip lines 14 and 14b is made by a coplanar line 22 connected by two transitions 23 and 24.
- FIG. 4 presents another variant where the second and third microstrip lines are connected directly to the common microstrip line 21.
- the switching of the second and third antennas 11 and 12 is done by the intermediate of two diodes 25 and 26 connected, on the one hand, respectively at the end of the second and third microstrip line 16 and 17, and on the other hand by the ground plane 13.
- the diodes 25 and 26 are connected so that one is on and the other blocked when the second and third microstrip lines 16 and 17 are biased using either a positive or negative voltage.
- FIGS. 3 and 4 use transitions 23 and 24 between the microstrip lines 14 and 14b and the coplanar line 22. These two transitions 23 and 24 also produce an attenuation of the signal.
- the variant of FIG. 5 is proposed.
- Access to the second and third slots 11 and 12 is here achieved using a common microstrip line 30 which intersects the first to third slots 10, 11 and 12 respectively at the first to third intersections 31, 32 and 33
- Two neighboring intersections are separated from each other by an odd multiple of a quarter of the guided wavelength ⁇ m in said line.
- the distance between the end of the first slot 10 and the first intersection 31 is equal to or of the order of a multiple of half the guided wavelength ⁇ f in said slot.
- the distances, on the one hand between the first intersection 31 and the end of the first slit 10, and on the other hand between the first intersection 31 and the end of the common microstrip line 30 always being a multiple of the half of the guided wavelength ⁇ m or ⁇ f in said line or said slot, there can be no coupling between the first slot 10 and the common microstrip line 30.
- each of the second and third slots 11 and 12 which is located opposite the radiation area opens respectively into a cavity 34 and 35 produced in the ground plane 13.
- Each cavity 34 or 35 corresponds to a circuit open relative to the slot at this end.
- This cavity can in particular be square in shape, for example of dimensions (10mm * 10mm), rectangular, polygonal, circular or even resemble a radial stub.
- the distance between the ends of the second and third slots 11 and 12 located at the edge of the cavities 35 and 36 and respectively the second and third intersections 32 and 33 is equal to or of the order of an odd multiple of a quarter of the length of guided wave ⁇ f in said slots.
- the ground plane 13 is separated into three parts 13a, 13b and 13c by breaking lines 36 and 37 which open respectively into the cavities 36 and 37.
- the breaking lines are very fine cuts, for example of a width d '' approximately 150 ⁇ m from the ground plane 13 which behaves in open circuit with respect to direct current and in short circuit to the frequency bands used for transmission.
- Two diodes 38 and 39 are placed at the limit between the second and third slots 11 and 12 and the cavities 34 and 35 respectively.
- the external parts 13b and 13c of the ground plane 13 are electrically connected either to the electric ground, or to a direct voltage which can be either negative or positive.
- the central part 13a is connected to a direct voltage either negative or positive.
- it is connected to the electrical ground.
- the diodes 38 and 39 are connected between the central part 13a and each of the external parts 13b and 13c of the ground plane 13 and oriented so that when one of the diodes is on, the other being blocked.
- the voltage of the central part 13a of the ground plane 13 there is always a pass-through diode and a blocked diode.
- Vivaldi antennas can be replaced by any other type of antenna powered by a line / slot transition (of printed dipole type, flared slot antenna or Tapered Slot Antenna in English, ...), or an antenna system such as shown in Figure 6 which uses simple slots.
- the embodiments previously described show the diversity of antenna in reception. It is quite conceivable to make the diversity of antenna in emission. In this case, the receiving antenna will be placed between the transmitting antennas.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0304682A FR2853996A1 (fr) | 2003-04-15 | 2003-04-15 | Systeme d'antennes |
PCT/EP2004/003468 WO2004093250A1 (fr) | 2003-04-15 | 2004-04-01 | Systeme d’antennes a fente rayonnante |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1614193A1 true EP1614193A1 (fr) | 2006-01-11 |
Family
ID=33041870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04725017A Withdrawn EP1614193A1 (fr) | 2003-04-15 | 2004-04-01 | Systeme d'antennes a fente rayonnante |
Country Status (9)
Country | Link |
---|---|
US (1) | US7408518B2 (fr) |
EP (1) | EP1614193A1 (fr) |
JP (1) | JP2006523973A (fr) |
KR (1) | KR20060035588A (fr) |
CN (1) | CN1788388A (fr) |
BR (1) | BRPI0409310A (fr) |
FR (1) | FR2853996A1 (fr) |
MX (1) | MXPA05010982A (fr) |
WO (1) | WO2004093250A1 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5144531B2 (ja) * | 2005-11-30 | 2013-02-13 | トムソン ライセンシング | デュアルバンド・アンテナのフロントエンド・システム |
WO2007114104A1 (fr) * | 2006-04-03 | 2007-10-11 | Panasonic Corporation | Fente rayonnante a alimentation differentielle |
FR2903232B1 (fr) * | 2006-06-30 | 2008-10-17 | France Telecom | Antenne symetrique en technologie micro-ruban. |
KR100869754B1 (ko) * | 2006-11-27 | 2008-11-21 | 한양대학교 산학협력단 | 재구성가능한 다중 대역 안테나 |
FR2910182A1 (fr) * | 2006-12-18 | 2008-06-20 | Thomson Licensing Sas | Perfectionnement aux antennes planaires a fente rayonnante |
JP4738380B2 (ja) * | 2007-05-10 | 2011-08-03 | 株式会社東芝 | 電子機器 |
WO2008139864A1 (fr) * | 2007-05-16 | 2008-11-20 | Nec Corporation | Antenne à fentes |
FR2917242A1 (fr) * | 2007-06-06 | 2008-12-12 | Thomson Licensing Sas | Perfectionnement aux antennes large bande. |
JP4756061B2 (ja) * | 2008-07-08 | 2011-08-24 | 日本電信電話株式会社 | 平面アンテナ |
CN101420060A (zh) * | 2008-11-24 | 2009-04-29 | 深圳华为通信技术有限公司 | 无线终端和无线网卡 |
US8085202B2 (en) * | 2009-03-17 | 2011-12-27 | Research In Motion Limited | Wideband, high isolation two port antenna array for multiple input, multiple output handheld devices |
US8489162B1 (en) * | 2010-08-17 | 2013-07-16 | Amazon Technologies, Inc. | Slot antenna within existing device component |
US8466846B1 (en) * | 2010-09-29 | 2013-06-18 | Rockwell Collins, Inc. | Ultra wide band balanced antipodal tapered slot antenna and array with edge treatment |
RU2507648C2 (ru) * | 2011-12-21 | 2014-02-20 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Гибридная щелевая антенна |
US9653793B2 (en) * | 2012-03-16 | 2017-05-16 | Stc.Unm | Systems and methods for reconfigurable filtenna |
US9257747B2 (en) * | 2012-06-30 | 2016-02-09 | Taoglas Group Holdings Limited | Vivaldi-monopole antenna |
KR102143103B1 (ko) | 2014-04-16 | 2020-08-10 | 삼성전자주식회사 | 전자 장치의 부품을 활용한 안테나 장치 |
US10103440B2 (en) * | 2014-11-06 | 2018-10-16 | Sony Mobile Communications Inc. | Stripline coupled antenna with periodic slots for wireless electronic devices |
TWI599105B (zh) * | 2015-07-31 | 2017-09-11 | 宏碁股份有限公司 | 行動通訊裝置 |
US11228112B2 (en) * | 2017-07-06 | 2022-01-18 | Saab Ab | Electrically controlled broadband group antenna |
JP6401835B1 (ja) * | 2017-08-07 | 2018-10-10 | 株式会社ヨコオ | アンテナ装置 |
RU184249U1 (ru) * | 2018-04-16 | 2018-10-19 | Федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В.И. Ульянова (Ленина) | Щелевая свч антенна |
RU192818U1 (ru) * | 2019-06-18 | 2019-10-02 | Федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В.И.Ульянова (Ленина) | Печатная СВЧ антенна |
WO2023008619A1 (fr) * | 2021-07-29 | 2023-02-02 | 엘지전자 주식회사 | Dispositif électronique comportant une antenne |
CN116154464B (zh) * | 2023-03-15 | 2024-02-20 | 南京航空航天大学 | 一种耐高温共口径宽波束天线 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2147399A1 (fr) * | 1994-06-01 | 1995-12-02 | Noach Amitay | Structure d'alimentation pour systeme de communication sans fil |
US5657028A (en) * | 1995-03-31 | 1997-08-12 | Nokia Moblie Phones Ltd. | Small double C-patch antenna contained in a standard PC card |
US6239761B1 (en) * | 1996-08-29 | 2001-05-29 | Trw Inc. | Extended dielectric material tapered slot antenna |
GB2328748B (en) * | 1997-08-30 | 2002-02-20 | Ford Motor Co | Improvements in sensor assemblies for automotive collision warning systems |
US6043785A (en) * | 1998-11-30 | 2000-03-28 | Radio Frequency Systems, Inc. | Broadband fixed-radius slot antenna arrangement |
WO2001052352A1 (fr) * | 2000-01-07 | 2001-07-19 | Modular Mining Systems, Inc. | Antenne reseau pour diagramme de rayonnement en forme de d et avec un plan h |
AU2001227851A1 (en) | 2000-01-12 | 2001-07-24 | Emag Technologies L.L.C. | Low cost compact omni-directional printed antenna |
US6853336B2 (en) * | 2000-06-21 | 2005-02-08 | International Business Machines Corporation | Display device, computer terminal, and antenna |
US6525696B2 (en) * | 2000-12-20 | 2003-02-25 | Radio Frequency Systems, Inc. | Dual band antenna using a single column of elliptical vivaldi notches |
FR2821503A1 (fr) * | 2001-02-23 | 2002-08-30 | Thomson Multimedia Sa | Dispositif de reception et/ou d'emission de signaux electromagnetiques utilisable dans le domaine des transmissions sans fil |
FR2825206A1 (fr) * | 2001-05-23 | 2002-11-29 | Thomson Licensing Sa | Dispositif pour la reception et/ou l'emission d'ondes electromagnetiques a rayonnement omnidirectionnel |
FR2826209A1 (fr) * | 2001-06-15 | 2002-12-20 | Thomson Licensing Sa | Dispositif pour la reception et/ou l'emission de signaux electromagnetiques a diversite de rayonnement |
FR2829298A1 (fr) * | 2001-09-04 | 2003-03-07 | Thomson Licensing Sa | Dispositif de commutation pour des appareils de reception et/ou d'emission d'ondes electromagnetiques |
WO2003058759A1 (fr) * | 2001-12-21 | 2003-07-17 | Motorola, Inc., A Corporation Of The State Of Delaware | Antenne a fentes a elements independants et circuits connexes |
-
2003
- 2003-04-15 FR FR0304682A patent/FR2853996A1/fr active Pending
-
2004
- 2004-04-01 KR KR1020057019168A patent/KR20060035588A/ko not_active Application Discontinuation
- 2004-04-01 JP JP2006504949A patent/JP2006523973A/ja active Pending
- 2004-04-01 MX MXPA05010982A patent/MXPA05010982A/es active IP Right Grant
- 2004-04-01 CN CNA2004800102160A patent/CN1788388A/zh active Pending
- 2004-04-01 BR BRPI0409310-0A patent/BRPI0409310A/pt not_active IP Right Cessation
- 2004-04-01 WO PCT/EP2004/003468 patent/WO2004093250A1/fr active Application Filing
- 2004-04-01 EP EP04725017A patent/EP1614193A1/fr not_active Withdrawn
- 2004-04-01 US US10/552,834 patent/US7408518B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2004093250A1 * |
Also Published As
Publication number | Publication date |
---|---|
MXPA05010982A (es) | 2005-12-05 |
US7408518B2 (en) | 2008-08-05 |
FR2853996A1 (fr) | 2004-10-22 |
CN1788388A (zh) | 2006-06-14 |
KR20060035588A (ko) | 2006-04-26 |
JP2006523973A (ja) | 2006-10-19 |
US20070171140A1 (en) | 2007-07-26 |
BRPI0409310A (pt) | 2006-04-18 |
WO2004093250A1 (fr) | 2004-10-28 |
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Legal Events
Date | Code | Title | Description |
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