EP1402596A1 - Antenne compacte multibande - Google Patents
Antenne compacte multibandeInfo
- Publication number
- EP1402596A1 EP1402596A1 EP02747522A EP02747522A EP1402596A1 EP 1402596 A1 EP1402596 A1 EP 1402596A1 EP 02747522 A EP02747522 A EP 02747522A EP 02747522 A EP02747522 A EP 02747522A EP 1402596 A1 EP1402596 A1 EP 1402596A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiating
- multiband antenna
- antenna
- short
- elements
- 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
Links
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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
-
- 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
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
Definitions
- the present invention relates generally to a telecommunication device for transmitting and receiving waves of wavelength ⁇ , typically used in a spectral domain including radio frequencies and microwave frequencies. More particularly, it relates to a multiband antenna.
- the size and weight of wireless communication systems such as multimode terminals (ground, satellite) or pocket telephone terminals are constantly being reduced by an ever greater integration of electronic circuits.
- multimode terminals ground, satellite
- pocket telephone terminals it is sought to improve the mobility of the user.
- efforts are focused on producing an antenna of transverse dimensions and low height, the antenna still remaining the most cumbersome part of such systems.
- the antenna must be aesthetic and not cause discomfort to the user, its complete concealment thus becoming a priority.
- the miniaturization of an antenna first influences the resonant frequency of the overall structure which is shifted towards the higher frequencies. In addition, it directly influences its radioelectric properties which are mainly the adaptation, the appearance of the radiation diagram and the bandwidth. Indeed, the reduction in size of an antenna generally results in a difficult adaptation, a drop in efficiency, a degradation of the radiation diagram associated with a great sensitivity to the environment, and above all a significant reduction in the width of the bandwidth due to a high quality coefficient.
- a compromise is generally achieved between, on the one hand, the performance of the antenna (good adaptation, controlled and omnidirectional radiation, wide bandwidth) and, on the other hand, the size, the complexity of the structure and the cost .
- the objective of miniaturization generally leads to the superposition of two radiating elements of the planar type, creating a resonant frequency depending on their dimensions. These planes are connected to a ground plane of larger dimensions but as small as possible, which in particular makes it possible to limit the sensitivity of the antenna to the surrounding medium.
- US Patent 5,986,606 discloses a miniature antenna.
- this antenna has a height of approximately 4.5 mm. It comprises a ground plane on which a so-called lower rectangular radiating plane is superimposed in parallel, and above a so-called upper rectangular radiating plane of the same dimensions. It has an operating frequency fi.
- the planes are connected to each other by a substantially square short-circuit plane, with a side smaller than their widths, and placed at the edge along one of the lengths of these planes.
- a thin layer of air fills the space between the lower plane and the ground plane.
- the lower plane is, moreover, connected by another short circuit parallel to the short circuit plane. These short circuits extend the electrical length to lower the frequency fi.
- a primary signal source feeds the lower plane.
- the two planes are thus of the active type.
- each of the radiating planes has a wide slot made in the direction of the width, of length less than the width. These slots are of the same dimensions, parallel and produced at the same position on each plane transformed into C. Like the short-circuit elements, they lengthen the electrical length and therefore lower the frequency fi.
- the “double C” antenna operates around 1.5 GHz with a fairly narrow bandwidth of 0.5% for an ROS less than or equal to 2.
- Such an antenna can operate in the so-called high frequency band, corresponding for example to the DCS (Digital Cellular System) standard. in English) between 1710 and 1880 MHz, or in PCS standard (Personal Communication System in English) between 1850 and 1990 MHz, without having a fortiori a dual-band character.
- this antenna cannot operate simultaneously in the so-called high band and in the so-called low frequency band corresponding for example to the GSM standard (890 - 960 MHz) or to the AMPS standard (824 - 896 MHz).
- the object of the invention is to combine techniques of miniaturization, broadening of the bandwidth and multifrequency operation in order to obtain multiband operation with the same antenna. This is made possible by the embedding of additional specific resonators in the miniaturized antenna.
- the invention relates to a multiband antenna comprising:
- a primary signal source connected at one end to a generator and fixed at its other end to one of said radiating elements
- the antenna according to the invention is flat and incorporates miniaturization techniques (superposition of elements).
- the thicknesses of the thin strips according to the invention may be small, and the lower and upper elements of reduced dimensions so that the antenna has a small footprint and weight suitable for multimode terminals or pocket terminals.
- the antenna according to the invention can be fixed for example on the rear wall of a pocket terminal.
- the short-circuit elements provide mechanical rigidity to the antenna.
- the materials used to make the antenna are chosen from inexpensive materials.
- the antenna according to the invention has a multifrequency operation resulting from multiple resonances.
- the first resonance corresponds to the fundamental resonance of the lower and upper radiating elements and gives an operating frequency fi.
- Another resonance linked to the resonance of the second and third short-circuit elements gives an operating frequency f 2 .
- the antenna according to the invention comprises two additional resonances created by the lower radiating slot and by the upper radiating slot with respective operating frequencies f 3 and f 4 .
- the addition of these lower and upper slots which act as resonators does not increase the size of the antenna.
- the number, nature and dimensions of the various elements as well as their arrangements with respect to each other offer the advantage of adjusting the operating frequencies as well as the shape of the antenna radiation diagram according to the envisaged coverage. .
- the antenna according to the invention can thus meet the need for multiband miniature antennas for portable terminals operating in several standards quite apart: the GSM low band, the high DCS band (1710 - 1880 MHz) and the bands allocated to the UMTS standard. (1885 - 2025 MHz) and (2110 - 2200 MHz).
- the antenna according to the invention can for example be integrated into a multimode terminal and operate in the satellite band (1980 - 2200 MHz).
- the GSM band can be obtained by double resonance by associating the frequencies fi and f 4 .
- the DCS and / or UMTS band can be obtained by double resonance by associating the frequencies f 2 and f 3 .
- the antenna according to the invention due to its small size can be sensitive to different polarizations.
- the absence of polarization purity can be exploited advantageously in a portable terminal and in an urban environment, where the coupling between polarizations is important since it promotes relatively omnidirectional radiation.
- the radiation pattern is such that the antenna operates satisfactorily in different positions and in the vicinity of the objects.
- the dimensions of the lower and upper elements can be substantially smaller than the dimensions of the mass element in order to obtain an antenna according to the invention of the smallest possible size.
- the dimensions of the lower and upper elements can be substantially identical to simplify the geometry of the antenna and its production.
- the other end of the source can be fixed to the upper element.
- the first and second dielectric materials can be air.
- the radiating lower and upper slots can have a length respectively greater than the largest dimension of each of the lower and upper elements.
- the electrical length is lengthened so that the frequency fi is lowered.
- the radiating lower and upper slots according to the invention can be of different sinuous shape.
- the sinuous shape makes it possible to optimize the length of the slots.
- Slits of different shape can ensure better functioning of the antenna.
- the radiating lower and upper slots according to the invention can comprise a plurality of continuous sections.
- the sections of the radiating lower slot may be of widths less than 0.5 mm and the sections of the radiating upper slot of widths less than 0.5 mm.
- the radiating slits are sufficiently narrow to reveal resonances.
- all of the sections can be according to the invention substantially the same width to simplify their production and preferably equal to 0.1 mm.
- the lower and upper elements and the mass element can be substantially rectangular.
- the first short-circuit element can be of the planar type and the second and third short-circuit elements according to the invention can be of the wired type.
- the second and third wire-type short-circuit elements can then be arranged in a master plane not parallel to the first plane-type short-circuit element and for example substantially orthogonal.
- the length of the lower radiating slot according to the invention is greater than 65 mm and the length of the upper radiating slot according to the invention is greater than 70 mm.
- the radiating lower slot can be through in the sense that at least one section ends at the edge of the lower element. Its sections can be orthogonal and four in number, the two longest sections being made in the direction of the length of the lower element.
- the radiating upper slot can also be through and its sections can be orthogonal and four in number, the two longest sections also being made in the direction of the length of the upper element.
- the rectangular radiating elements can be arranged substantially near the middle of the rectangular mass element, the lengths of the rectangular upper and lower elements being parallel to the lengths of the mass element.
- the radiating elements can be arranged substantially near one end of the mass element, the widths of the lower and upper elements being parallel to the lengths of the mass element.
- the first short-circuit element can be substantially orthogonal to said ground element.
- the invention also relates to a radiocommunication terminal comprising such an antenna.
- FIG. 1 is a perspective view of an antenna according to the invention in a first embodiment of the invention
- FIG. 2 is a top view of the ground plane of the antenna of FIG. 1,
- FIG. 3 is a top view of the lower radiating plane of the antenna in FIG. 1,
- FIG. 4 is a top view of the upper radiating plane of the antenna in FIG. 1,
- FIG. 5 shows the ROS in the high band of the antenna of FIG. 1,
- FIG. 6 shows the ROS in the low band of the antenna of FIG. 1
- FIG. 7 is a perspective view of an antenna according to the invention in a second embodiment of the invention
- FIG. 8 is a top view of the ground plane of the antenna of FIG. 7, “FIG. 9 is a top view of the lower radiating plane of the antenna of FIG. 7,
- FIG. 10 is a top view of the upper radiating plane of the antenna in FIG. 7.
- FIG. 1 shows an antenna according to the invention 1 comprising a ground plane 11, a lower radiating plane 2, rectangular superimposed and parallel to the ground plane 11, an upper radiating plane 3, identical rectangular superimposed and parallel to the radiating plane lower 2.
- the lower 2 and upper 3 planes are disposed substantially near the middle of the ground plane 11, the lengths of these planes 2, 3 being parallel to the lengths of the ground plane 11.
- these planes 2, 3 are metallic and of identical dimensions and respectively comprise a radiating lower slot 9 and an radiating upper slot 10 of different sinuous shape.
- the lower plane 2 is electrically connected to the upper plane 3 by a perpendicular metallic short-circuit plane 4 and welded over one of their widths.
- the lower plane 2 is also connected to the ground plane
- Wired short circuits 5.6 are located on either side of the source
- FIG. 2 is a top view of the ground plane 11 of the antenna 1.
- This ground plane li has a length Lu equal to 60 mm and a width lu equal to 40 mm.
- FIG. 3 shows a top view of the lower plane 2 of the antenna
- This lower plane 2 has a length L 2 equal to 35 mm and a width l 2 equal to 25 mm.
- the lower slot 9 also shown is through and includes four continuous and orthogonal sections 91, 92, 93, 94. The two longest sections 91, 93 are made in the direction of the length of the lower plane 2. Note that the section 93 is near opening 7b.
- the positioning of the power source 7 near the slots 9, 10 allows the adaptation (ROS ⁇ 2) of the resonances of the slots to the desired frequencies (here GSM and UMTS frequencies) as well as sufficient energy transmission so that the slots 9, 10 radiate.
- the sections 91, 92, 93, 94 are of substantially the same width l 9 which is preferably of the order of 0.1 mm.
- the total length of the lower slot 9 is of the order of 68 mm.
- FIG. 4 presents a top view of the upper plane 3 of the antenna 1.
- This upper plane 3 has a length L 3 equal to 35 mm and a width l 3 equal to 25 mm.
- the upper slot 10 also shown is through and comprises four continuous and orthogonal sections 101, 102, 103, 104.
- the two longest sections 101, 103 are made in the direction of the length of the upper plane 3.
- the section 104 is completely located on one of the widths of the upper plane 3.
- the sections 101, 102, 103, 104 are of substantially the same width 10 which is preferably of the order of 0.1 mm.
- the total length of the upper slot 10 is of the order of 75 mm.
- section 101 is close to the weld 8 and that the sections 101, 102, 103 cannot be superimposed with the sections 91, 92, 93, 94.
- the size of the antenna 1 of dimensions 60 x 40 x 12.5 m 3 is therefore very limited.
- the antenna 1 has a multifrequency operation resulting from four resonances.
- the first resonance of operating frequency fi located in the low band corresponds to the fundamental resonance of the lower and upper planes 2, 3.
- the second resonance of operating frequency f 2 located in the high band is related to the resonance wired short circuits 5, 6.
- two additional resonances of operating frequencies f 3 and f 4 with a ratio close to two are respectively created by the lower slot 9 and by the upper slot 10.
- these two resonances are the result of mutual disturbances between the two slots 9 and 10. They are respectively located in the high band and the low band.
- the operating frequencies are adjusted due to the optimization of the dimensions of the different elements and their arrangements with respect to each other.
- element is meant here not only the metallic structure (the lower 2 and upper 3 planes), but also the slots 9, 10, the ground plane 11, the short circuits 5, 6 and the primary source 7.
- Fixtures is meant:
- the slots 9 and 10 also make it possible to lengthen the electrical lengths in order to lower the frequency fi.
- the construction of the slots 9, 10 is such that the frequency resonances fi and f 2 are very little affected.
- the use of several wired short circuits 5,6 at precise relative positions with respect to the position of the plane short circuit 4 makes it possible to obtain good operation of the antenna 1.
- the spacing between the frequencies fi and f 2 is obtained by the association of the wired short-circuits 5, 6 and adjusted by the upper slot 10.
- the four resonances fi to couple in pairs and cause two wide bandwidths in the band low and high band.
- the ROS characterizing the adaptation of the antenna 1 is presented by the curve 14 in FIG. 5 for the low band and by the curve 15 in FIG. 6 for the high band.
- Optimal operating frequencies fi and f 4 equal to approximately 935 MHz and 980 MHz are obtained and a bandwidth A equal to approximately 7% (approximately 70 MHz) for an ROS less than or equal to 3.
- the dimensions of the planes 2, 3 are therefore less than ⁇ / 10 and those in the ground plane 11 to ⁇ / 5.
- optimal operating frequencies f 3 and f 2 equal to approximately 2050 MHz and 2370 MHz and a bandwidth B equal to approximately 22% (approximately 500 MHz) for an ROS less than or equal to 2. Note that the frequencies will be slightly shifted to lower frequencies after integration of antenna 1 in a terminal box.
- FIG. 7 shows an antenna according to the invention 20, comprising a ground plane 31, a lower radiating plane 22 superimposed rectangular and parallel to the ground plane 31, an upper radiating plane 23 superimposed rectangular and parallel to the lower radiating plane 22.
- the lower 22 and upper 23 planes are disposed substantially close to a width of the ground plane 31, the widths of these planes 22, 23 being parallel to the lengths of the ground plane 31.
- the lower 22 and upper 23 planes are metallic and of identical dimensions and respectively comprise a lower radiating slot 29 and an upper radiating slot 30 of different sinuous shape.
- the lower plane 22 is electrically connected to the upper plane 23 by a welded perpendicular metallic short-circuit plane 24.
- the lower plane 22 is also connected to the ground plane 31 by two wire (not visible) metallic short-circuits.
- a thin lower blade of air 32 fills the space between the lower plane 22 and the ground plane 11.
- a lower thin blade of air 33 fills the space between the lower 22 and upper 23 planes.
- the height H 2 o of the antenna 20 is 9.5 mm.
- Figure 8 is a top view of the ground plane 31 of the antenna 20.
- This ground plane 31 has a length L 31 equal to 100 mm and a width l 3 ⁇ equal to 40 mm. From the connection positions 25a and 26a of the wire short-circuits (not shown) we see that these short-circuits are not aligned with the source 27, are arranged in a master plane (not shown) not parallel to the short plane - circuit 24.
- Figure 9 shows a top view of the lower plane 22 of the antenna
- This lower plane 22 has a length L 2 2 equal to 35 mm and a width l 22 equal to 25 mm.
- the lower slot 29 also shown is emerging and includes four continuous and orthogonal sections 291,
- the two longest sections 291, 293 are made in the direction of the length of the lower plane 2. Note that the section 293 is near the opening 27b.
- the sections 291, 292, 293, 294 are of substantially the same width l 9 which is preferably of the order of 0.1 mm.
- the total length of the lower slot 29 is of the order of 70 mm.
- FIG. 10 presents a top view of the upper plane 23 of the antenna 20.
- This upper plane 23 has a length L 23 equal to 35 mm and a width l 3 equal to 25 mm.
- the upper slot 30 also shown is through and includes four continuous and orthogonal sections 301,
- the two longest sections 301, 303 are made in the direction of the length of the upper plane 23.
- the section 304 is completely located on one of the widths of the upper plane 23.
- the sections 301, 302 , 303, 304 are substantially the same width
- the total length of the upper slot 30 is of the order of 75 mm.
- section 301 is close to the weld 28 and that part of the section 301 can be superimposed with the section 293.
- the size of the antenna 20 of dimensions 100 ⁇ 40 ⁇ 9.5 m 3 is therefore very small. .
- the antenna 20 Identically to the antenna 1, the antenna 20 has four resonances fi to f 4 coupled in pairs for operation of the antenna 20 both multiband and broadband.
- the ROS, the bandwidths and the radiation pattern of the antenna 20 are similar to those of the antenna 1.
- any means can be replaced by equivalent means.
- the radiating elements and the mass element can for example be shaped.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0107689A FR2825837B1 (fr) | 2001-06-12 | 2001-06-12 | Antenne compacte multibande |
FR0107689 | 2001-06-12 | ||
PCT/FR2002/001973 WO2002101874A1 (fr) | 2001-06-12 | 2002-06-10 | Antenne compacte multibande |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1402596A1 true EP1402596A1 (fr) | 2004-03-31 |
Family
ID=8864232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02747522A Ceased EP1402596A1 (fr) | 2001-06-12 | 2002-06-10 | Antenne compacte multibande |
Country Status (6)
Country | Link |
---|---|
US (1) | US6930642B2 (fr) |
EP (1) | EP1402596A1 (fr) |
JP (1) | JP4111911B2 (fr) |
CN (1) | CN100566020C (fr) |
FR (1) | FR2825837B1 (fr) |
WO (1) | WO2002101874A1 (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100483043B1 (ko) * | 2002-04-11 | 2005-04-18 | 삼성전기주식회사 | 멀티밴드 내장 안테나 |
BR0215790A (pt) * | 2002-06-25 | 2005-03-01 | Fractus Sa | Antena para múltiplas faixas de sintonia |
DE10231961B3 (de) * | 2002-07-15 | 2004-02-12 | Kathrein-Werke Kg | Niedrig bauende Dual- oder Multibandantenne, insbesondere für Kraftfahrzeuge |
US20040017318A1 (en) * | 2002-07-26 | 2004-01-29 | Amphenol Socapex | Antenna of small dimensions |
EP1629569B1 (fr) * | 2003-07-22 | 2013-08-21 | Psion Inc. | Antenne interne avec fentes |
US6982672B2 (en) | 2004-03-08 | 2006-01-03 | Intel Corporation | Multi-band antenna and system for wireless local area network communications |
CN1691415B (zh) * | 2004-04-29 | 2010-08-11 | 美国莫列斯股份有限公司 | 低侧高天线 |
FR2869727B1 (fr) | 2004-04-30 | 2007-04-06 | Get Enst Bretagne Etablissemen | Antenne planaire a plots conducteurs s'etendant a partir du plan de masse et/ou d'au moins un element rayonnant, et procede de fabrication correspondant |
TWI256176B (en) * | 2004-06-01 | 2006-06-01 | Arcadyan Technology Corp | Dual-band inverted-F antenna |
US7872605B2 (en) | 2005-03-15 | 2011-01-18 | Fractus, S.A. | Slotted ground-plane used as a slot antenna or used for a PIFA antenna |
US7202831B2 (en) * | 2005-08-09 | 2007-04-10 | Darts Technologies Corp. | Multi-band frequency loop-slot antenna |
TWI275205B (en) * | 2005-12-07 | 2007-03-01 | Compal Electronics Inc | Planar antenna structure |
CZ299752B6 (cs) * | 2005-12-27 | 2008-11-12 | Ceské vysoké ucení technické v Praze | Vícepásmová flícková anténa |
KR100688648B1 (ko) * | 2005-12-30 | 2007-03-02 | 아로 주식회사 | 단락 스터브를 이용한 이동통신단말기용 다중대역 내장형안테나 |
US7688275B2 (en) * | 2007-04-20 | 2010-03-30 | Skycross, Inc. | Multimode antenna structure |
US8866691B2 (en) | 2007-04-20 | 2014-10-21 | Skycross, Inc. | Multimode antenna structure |
US7688273B2 (en) | 2007-04-20 | 2010-03-30 | Skycross, Inc. | Multimode antenna structure |
US8344956B2 (en) | 2007-04-20 | 2013-01-01 | Skycross, Inc. | Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices |
DE102007035283A1 (de) | 2007-07-27 | 2009-01-29 | Siemens Ag | Verfahren zur Einstellung eines Zustands eines Walzguts, insbesondere eines Vorbands |
US8638266B2 (en) * | 2008-07-24 | 2014-01-28 | Nxp, B.V. | Antenna arrangement and a radio apparatus including the antenna arrangement |
CN102263326B (zh) * | 2010-05-24 | 2013-10-02 | 广达电脑股份有限公司 | 小型多频天线及使用该天线的通信装置 |
KR101928989B1 (ko) | 2012-05-29 | 2018-12-13 | 삼성전자주식회사 | 휴대용 단말기의 안테나 장치 |
US10096910B2 (en) | 2012-06-13 | 2018-10-09 | Skycross Co., Ltd. | Multimode antenna structures and methods thereof |
KR101926549B1 (ko) | 2012-07-23 | 2019-03-12 | 엘지이노텍 주식회사 | 안테나 장치 |
US20150116162A1 (en) | 2013-10-28 | 2015-04-30 | Skycross, Inc. | Antenna structures and methods thereof for determining a frequency offset based on a differential magnitude |
US10522915B2 (en) * | 2017-02-01 | 2019-12-31 | Shure Acquisition Holdings, Inc. | Multi-band slotted planar antenna |
US10418709B1 (en) * | 2018-02-26 | 2019-09-17 | Taoglas Group Holdings Limited | Planar inverted F-antenna |
KR102572247B1 (ko) * | 2018-11-14 | 2023-08-29 | 삼성전자주식회사 | 슬롯을 이용한 안테나 및 그것을 포함하는 전자 장치 |
WO2020159806A1 (fr) * | 2019-01-30 | 2020-08-06 | Avx Antenna, Inc. D/B/A Ethertronics, Inc. | Système d'antenne ayant des structures d'antenne empilées |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6058704A (ja) * | 1983-09-09 | 1985-04-04 | Nippon Telegr & Teleph Corp <Ntt> | 複共振形逆fアンテナ |
JPH0669122B2 (ja) * | 1984-08-01 | 1994-08-31 | 日本電信電話株式会社 | 広帯域伝送線路アンテナ |
JPS6323404A (ja) * | 1986-07-16 | 1988-01-30 | Mitsubishi Electric Corp | マイクロストリツプアンテナ |
JPH03263903A (ja) * | 1989-04-28 | 1991-11-25 | Misao Haishi | 小形アンテナ |
JP2640872B2 (ja) * | 1990-10-22 | 1997-08-13 | アルプス電気株式会社 | 板状アンテナ |
JP2592128Y2 (ja) * | 1993-06-16 | 1999-03-17 | 京セラ株式会社 | 平型アンテナ |
JP3185856B2 (ja) * | 1995-11-29 | 2001-07-11 | 株式会社エヌ・ティ・ティ・ドコモ | 二周波共振アンテナ装置 |
CA2190792C (fr) * | 1995-11-29 | 1999-10-05 | Koichi Tsunekawa | Antenne a deux frequences de resonance |
EP0795926B1 (fr) * | 1996-03-13 | 2002-12-11 | Ascom Systec AG | Antenne plane tridimensionnelle |
FR2752646B1 (fr) * | 1996-08-21 | 1998-11-13 | France Telecom | Antenne imprimee plane a elements superposes court-circuites |
US5703601A (en) * | 1996-09-09 | 1997-12-30 | The United States Of America As Represented By The Secretary Of The Army | Double layer circularly polarized antenna with single feed |
US6049314A (en) * | 1998-11-17 | 2000-04-11 | Xertex Technologies, Inc. | Wide band antenna having unitary radiator/ground plane |
JP3639753B2 (ja) * | 1999-09-17 | 2005-04-20 | 株式会社村田製作所 | 表面実装型アンテナおよびそれを用いた通信装置 |
FI112984B (fi) * | 1999-10-20 | 2004-02-13 | Filtronic Lk Oy | Laitteen sisäinen antenni |
US6466170B2 (en) * | 2001-03-28 | 2002-10-15 | Motorola, Inc. | Internal multi-band antennas for mobile communications |
-
2001
- 2001-06-12 FR FR0107689A patent/FR2825837B1/fr not_active Expired - Fee Related
-
2002
- 2002-06-10 US US10/478,859 patent/US6930642B2/en not_active Expired - Fee Related
- 2002-06-10 CN CNB028117549A patent/CN100566020C/zh not_active Expired - Fee Related
- 2002-06-10 WO PCT/FR2002/001973 patent/WO2002101874A1/fr not_active Application Discontinuation
- 2002-06-10 EP EP02747522A patent/EP1402596A1/fr not_active Ceased
- 2002-06-10 JP JP2003504503A patent/JP4111911B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02101874A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1515050A (zh) | 2004-07-21 |
CN100566020C (zh) | 2009-12-02 |
FR2825837B1 (fr) | 2006-09-08 |
US6930642B2 (en) | 2005-08-16 |
FR2825837A1 (fr) | 2002-12-13 |
US20040155823A1 (en) | 2004-08-12 |
JP4111911B2 (ja) | 2008-07-02 |
WO2002101874A1 (fr) | 2002-12-19 |
JP2004529592A (ja) | 2004-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1402596A1 (fr) | Antenne compacte multibande | |
EP3547450B1 (fr) | Element rayonnant a polarisation circulaire mettant en oeuvre une resonance dans une cavite de fabry perot | |
EP1433223B1 (fr) | Antenne fil-plaque multifrequences | |
EP0825673B1 (fr) | Antenne plane à éléments superposés court-circuités | |
EP1407512B1 (fr) | Antenne | |
EP0145597B1 (fr) | Antenne périodique plane | |
EP0899814B1 (fr) | Structure rayonnante | |
EP1241733A1 (fr) | Antenne PIFA avec fentes | |
WO2011134666A1 (fr) | Element rayonnant compact a cavites resonantes | |
EP1225654A1 (fr) | Antenne multi-bandes pour appareils mobiles | |
EP1228552A1 (fr) | Antenne imprimee bi-bande | |
CA2310125C (fr) | Antenne | |
EP1690317A1 (fr) | Antenne en reseau multi-bande a double polarisation | |
EP2643886B1 (fr) | Antenne planaire a bande passante elargie | |
EP2095465A1 (fr) | Antenne mono ou multi-frequences | |
EP1550183A2 (fr) | Element rayonnant large bande a double polarisation, de forme generale carree | |
EP1883991A1 (fr) | Antenne monopole | |
FR2819346A1 (fr) | Antenne planaire et dispositif de transmission bi-bande incluant cette antenne | |
WO2008125399A1 (fr) | Antenne mixte | |
FR2760132A1 (fr) | Antenne alimentee par bobines cote a cote pour un poste radio portable | |
EP1516392B1 (fr) | Antenne a brins | |
EP0642189A1 (fr) | Antenne pour appareil radio portatif | |
EP1903636B1 (fr) | Antenne à large bande d'adaptation | |
WO2012041979A1 (fr) | Antenne compacte a fort gain | |
WO2010106073A1 (fr) | Antenne a double ailettes |
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 |
|
17P | Request for examination filed |
Effective date: 20040112 |
|
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 TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CARRERE, JEAN-MARC Inventor name: LEGAY, HERVE Inventor name: STARAJ, ROBERT Inventor name: KOSSIAVAS, GEORGES |
|
17Q | First examination report despatched |
Effective date: 20060628 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCATEL LUCENT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20080309 |