WO2004051800A1 - チップアンテナ、チップアンテナユニット及びこれらを用いた無線通信装置 - Google Patents
チップアンテナ、チップアンテナユニット及びこれらを用いた無線通信装置 Download PDFInfo
- Publication number
- WO2004051800A1 WO2004051800A1 PCT/JP2003/015119 JP0315119W WO2004051800A1 WO 2004051800 A1 WO2004051800 A1 WO 2004051800A1 JP 0315119 W JP0315119 W JP 0315119W WO 2004051800 A1 WO2004051800 A1 WO 2004051800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- antenna
- area
- base
- chip antenna
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2283—Supports; Mounting means by structural association with other equipment or articles mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
-
- 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
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
-
- 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
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
Definitions
- Chip antenna Chip antenna unit, and wireless communication device using them
- the present invention relates to a chip antenna used as a built-in antenna of a wireless communication device such as a mobile phone or a mobile terminal, and a chip antenna unit having the chip antenna mounted on a mounting board.
- Mobile terminals such as mobile phones use small chip antennas for diversity reception that can be used in a plurality of frequency bands, for example, the 800 MHz band and the 1500 MHz band.
- An example of such a small chip antenna is disclosed in, for example, Japanese Patent Application Laid-Open No. H11-31913. This publication discloses a technique that includes a conductor and a trap circuit inserted in an intermediate portion of the conductor, and obtains two resonances, that is, resonance in the entire chip antenna and resonance up to the trap circuit.
- Japanese Patent Application Laid-Open No. 2002-111114 discloses a technique for obtaining two resonances by a chip antenna and a pattern antenna formed on a substrate.
- an antenna is formed on a substrate using a conductor line pattern, so that the antenna portion becomes very large, and the size of the antenna becomes small. Contrary to the request for conversion.
- the frequency characteristics of the antenna may slightly change due to the influence of the line pattern and the like.
- the antenna itself since the frequency characteristics cannot be fine-tuned with the existing chip antenna, the antenna itself must be replaced. Then, it must be kept in a slightly different antenna 3 ⁇ 4 frequency characteristics provided nothing type. This would drastically reduce productivity.
- an object of the present invention is to provide a chip antenna capable of obtaining resonance in a plurality of or wide frequency bands with a simple structure.
- Another object of the present invention is to provide a chip antenna capable of setting a predetermined pattern antenna at an arbitrary resonance frequency without affecting the frequency characteristics of the other pattern antenna.
- Still another object of the present invention is to provide a chip antenna that can easily adjust frequency characteristics.
- a base made of a dielectric or magnetic material and having a laminated structure and a plurality of layers of a base are formed, and at least a part of the patterns mutually overlap in the laminating direction.
- a chip antenna characterized by having a plurality of unpatterned pattern antennas and a feed terminal formed on the surface of the base and connected to the pattern antenna.
- the predetermined pattern antenna can be set to an arbitrary resonance frequency without affecting the frequency characteristics of the other pattern antenna.
- a mounting substrate a substrate mounted on the mounting substrate and made of a dielectric or magnetic material, a pattern antenna formed on the substrate, and a substrate formed on the surface of the substrate
- a feed terminal connected to the pattern antenna, a fixed terminal formed on the surface of the base and connected to the pattern antenna, and a conductor formed on the mounting board and connected to the fixed terminal and fixing the base to the mounting board.
- the chip antenna unit has a fixing portion.
- the resonance frequency can be finely adjusted by adjusting the area of the fixed portion, so that the frequency characteristics can be easily adjusted.
- a base formed of a dielectric or magnetic material, a first area formed on the base and having a rectangular shape, and a second area extending continuously from the first area.
- a chip antenna comprising: a pattern antenna having the following area: and a power supply terminal formed on the surface of the base and connected to the pattern antenna.
- FIG. 1 is a perspective view showing a chip antenna unit according to a first embodiment of the present invention
- FIG. 2 is a perspective view showing a chip antenna in the chip antenna unit of FIG.
- FIG. 3 is a sectional view showing a chip antenna in the chip antenna unit of FIG. 1,
- FIG. 4 is a graph showing the frequency characteristics of V S WR when the area of the fixed portion of the chip antenna unit of FIG.
- FIG. 5 is an exploded perspective view showing a chip antenna in a chip antenna unit according to a second embodiment of the present invention
- FIG. 6 is a plan view showing a pattern antenna of a first pattern formed on the chip antenna of FIG. 5,
- FIG. 7 is a plan view showing a pattern antenna of a second pattern formed on the chip antenna of FIG. 5,
- FIG. 8 is a sectional view showing the chip antenna of FIG. 5,
- FIG. 9 is a graph showing frequency characteristics of V S WR of 1 to 11 GHz in the chip antenna unit according to the second embodiment of the present invention.
- FIG. 10 is a conceptual diagram for explaining a pattern antenna of a second pattern in the chip antenna of FIG.
- FIG. 11 is a graph showing the frequency characteristics of VSWR when the length of the predetermined location shown in FIG. 1 ok is changed in the pattern antenna of the second pattern in the chip antenna of FIG.
- FIG. 1 is a perspective view showing a chip antenna unit according to a first embodiment of the present invention
- FIG. 2 is an exploded perspective view showing a chip antenna in the chip antenna unit shown in FIG. 1
- FIG. FIG. 4 is a cross-sectional view showing the antenna
- FIG. 4 is a graph showing the frequency characteristics of the VSWR when the area of the fixed portion of the chip antenna unit of FIG.
- the base 11 may be made of a magnetic material.
- a pattern antenna is formed on a plurality of layers of the base 11, and as shown in FIG. 2, a pattern antenna A1 having a meandering first pattern is provided on the first pattern layer 10a, and a second pattern antenna is provided on the first pattern layer 10a.
- a pattern antenna A2 having a meandering second pattern different from the first pattern is formed on the layer 10b.
- the pattern antennas A 1 and A 2 have a meandering pattern.
- a circular or rectangular pattern, or a three-dimensional helical force pattern having a plurality of layers, such as a meandering pattern is used.
- various patterns can be used, for example, a shape of a plurality of layers for securing the reactance capacity.
- a power supply terminal 12 is formed from the bottom surface of the base 11 to the upper surface through one side surface.
- fixed terminals 16a and 16b are formed on two opposing side surfaces of the base 11 and adjacent adjacent surfaces.
- the power supply terminal 12 formed on the surface of the base 11 in this manner is provided at one end of the two pattern antennas Al and A2, and the fixed terminal 16a is provided at the other end of the pattern antenna A1.
- the fixed terminal 16b is connected to the other end of the pattern antenna A2.
- the chip antenna 10 is mounted on a mounting board 13, and the chip antenna 10 and the mounting board 13 form a chip antenna unit.
- the mounting substrate 13 includes a ground electrode 14, a power supply line 15 that supplies a signal from a signal source (not shown) to the power supply terminal 12 while matching the impedance of the circuit, for example, 5 ⁇ , and a fixed terminal 16.
- a ′, 16 b and fixed portions 17 a, 17 b made of conductors for fixing the base 11 to the mounting board 13.
- the fixed terminals 16a and 16b and the fixed portions 1a and 17b are each formed at two places, but may be formed at one place.
- Pattern antennas Al, A2, power supply terminal 12, ground electrode 14, power supply line 15, fixed terminals 16a, 16b and fixed portions 17a, 17b are formed by patterning a metal conductor layer such as copper or silver. Have been. Specifically, it is formed by, for example, a method of pattern printing and baking a metal paste such as silver, a method of forming a metal pattern layer by plating, a method of patterning a thin metal film by etching, and the like.
- the pattern antenna A1 having the first pattern and the pattern antenna A2 having the second pattern do not overlap in the stacking direction.
- the first resonance frequency is obtained by the pattern antenna A1. Further, a second resonance frequency different from the first resonance frequency is obtained by the pattern antenna A2. Therefore, overlapping of the pattern antennas A1 and A2 in the stacking direction is avoided.
- the resonance frequencies of the respective pattern antennas are independent of each other, so that the antenna design becomes easier.
- the pattern antenna A1 and the pattern antenna A2 inevitably overlap in a portion connected to the power supply terminal 12 and in the vicinity of the portion. Therefore, in this specification, “not overlapping” means that portions excluding these portions do not overlap.
- the pattern may partially overlap, but as the ratio of overlap in the stacking direction increases, the variation in the frequency characteristics of the other pattern antenna during the adjustment of the resonance frequency of the other pattern antenna increases. turn into. Therefore, it is desirable that the parts other than the inevitable parts described above do not overlap.
- pattern antennas A 1 and A 2 that are not overlapped with each other are shown in the present embodiment, other pattern antennas can be formed. In this case, all the pattern antennas may not overlap, and some pattern antennas may overlap each other. That is, it is only necessary that at least some of the pattern antennas do not overlap each other in the stacking direction. Furthermore, it is sufficient that at least two pattern antennas are formed, that is, a plurality of pattern antennas are formed.
- the frequency characteristics of the antenna may slightly change due to the influence of the feed line pattern and other electronic components.
- this chip antenna 10 by changing the area of the fixed portions 17 a and 17 b when mounting the antenna, a part of the fixed portions 17 a and 17 b is scraped or expanded.
- the frequency characteristics can be adjusted.
- the resonance frequency of the chip antenna 10 when the area of the fixed parts 17a and 17b is large, the resonance frequency shifts to the lower frequency side, and conversely, when the area of the fixed parts 17a and 17b is small, The resonance frequency shifts to the higher frequency side. Therefore, if the resonance frequency of the chip antenna 10 is lower than a predetermined value in the mounted state, the fixed portions 17a and 17b are cut away and shifted to the higher frequency side. Conversely, when the resonance frequency of the chip antenna 10 is higher than a predetermined numerical value, the area of the fixed portions 17a and 17b is increased to shift to the lower frequency side.
- the resonance frequency can be finely adjusted by adjusting the areas of the fixed portions 17a and 17b, so that the frequency characteristics can be easily adjusted. As a result, even if the frequency characteristics of the chip antenna 10 mounted on the mounting board 13 change, there is no need to replace the antenna itself.
- a structure in which the patterns of a plurality of pattern antennas do not overlap in the stacking direction and a structure in which the area of the fixed portions 17a and 17b is adjusted to finely adjust the resonance frequency Although two structures are adopted, each can be massaged independently.
- the pattern antenna is formed on the surface or inside of the base, or on any of the surface and inside. May be one or plural, and therefore, the substrate does not have to have a laminated structure.
- the predetermined pattern antenna can be used without affecting the frequency characteristics of the other pattern antenna. Any resonance frequency can be set.
- the resonance frequency can be finely adjusted by adjusting the area of the fixed portion, the frequency characteristics can be easily adjusted.
- FIG. 5 is an exploded perspective view showing a chip antenna in a chip antenna unit according to a second embodiment of the present invention.
- FIG. 6 is a diagram showing a first pattern antenna formed on the chip antenna of FIG.
- FIG. 7 is a plan view showing a pattern antenna of a second pattern formed on the chip antenna of FIG. 5
- FIG. 8 is a chip antenna in a chip antenna according to a second embodiment of the present invention.
- FIG. 9 is a graph showing frequency characteristics of VS WR of 1 to 11 GHz in the chip antenna unit according to the second embodiment of the present invention
- FIG. 10 is a chip diagram of FIG.
- FIG. 11 is a conceptual diagram for explaining a pattern antenna having a second pattern in the antenna.
- FIG. 11 is a schematic view showing a predetermined pattern shown in FIG. Of a graph showing the frequency characteristics of V S WR when having different lengths.
- a pattern antenna is formed on a plurality of layers of the base 11, and as shown in FIG. 5, the first pattern layer 10 a has a meandering first pattern.
- Pattern antenna A 1 having a pattern antenna (see also FIG. 6)
- a pattern antenna A 2 ′ having a second planar pattern different from the first pattern on the second pattern layer 10 b (see also FIG. 7) ), Each is formed.
- the pattern antenna A1 has a meandering pattern, but may have various patterns such as a circular or rectangular shape, or a three-dimensional helical pattern having a plurality of layers. be able to. Referring to FIG.
- the power supply terminal 12 is formed from the bottom surface of the base body 11 to the upper surface through one side surface, similarly to the first embodiment in which the power supply terminal is formed.
- fixed terminals 16a and 16b are formed on two opposing side surfaces of the base 11 and adjacent adjacent surfaces. As shown in detail in FIG. 5, the feeding terminal 12 formed on the surface of the base 11 in this manner is located at one end of the two pattern antennas A1, ⁇ 2 ', and the fixed terminal 16a is located at the other end of the pattern antenna A1. At the end, the fixed terminal 16b is connected to the other end of the pattern antenna A2, respectively.
- the chip antenna 10 is mounted on the mounting board 13, and the chip antenna 10 and the mounting board 13 constitute a chip antenna unit.
- the mounting board 13 includes a ground electrode 14, a power supply line 15 for supplying a signal from a signal source (not shown) to the power supply terminal 12 while matching the impedance of the circuit, for example, 50 ⁇ , and a fixed terminal.
- Fixing portions 17a and 17b which are connected to 16a and 16b and are made of conductors for fixing the base 11 to the mounting board 13 are provided.
- the pattern antennas Al and A2 ', the power supply terminal 12, the ground electrode 14, the power supply line 15, the fixed terminals 16a and 16b, and the fixed portions 17a and 17b are made of copper, silver, or the like. Is formed by patterning the metal conductor layer of FIG. The specific patterning forming method is the same as that of the first embodiment.
- the pattern antenna A 2 is composed of a first area S 1 having a rectangular shape and a second area S 2 extending continuously from the first area S 1.
- a slit T is formed between the first area S1 and the second area S2. Note that the slit T may not be formed.
- the rectangular shape forming the first area S1 may have, for example, rounded corners.
- there may be a part other than the first area S1 and the second area S2 (for example, a part shown by a halftone dot in FIG. 10). In the case shown in FIG. 10, the second area S2 continuously extends from the first area S1 via a portion indicated by a halftone dot.
- the length of the side of the first area S1 along the direction in which the second area S2 extends is L1
- the length of the second area S2 is L2.
- the obtained resonance waveform differs depending on the length relationship between L1 and L2.
- the resonance waveform is a force S that varies depending on other factors such as the area and width of each area S l and S 2, the position of a feeding point, and the like. 2 is adjusted to obtain the desired resonance.
- the resonance frequency in the first area S1 is lower than the resonance frequency in the second area S2.
- the resonance frequency in the second area S2 is lower than the resonance frequency in the first area S1.
- one pattern antenna that is, Only the pattern antenna A2 without using the antenna A1 can provide a multi-band wireless communication device that can be used in multiple frequency bands.
- Fig. 11 (c) when the lengths of L1 and L2 are close to each other and slightly different, the resonance points of the two resonances are close to each other, resulting in a wide frequency range. Resonance is obtained in the band. Therefore, if such a pattern antenna A 2 ′ is used as a chip antenna, a wideband wireless communication device usable in a wide band can be obtained.
- the waveform of the second resonance F2 shown in FIG. 9 is a case where L1 and L2 are close to each other, and the VSWR (Vo 1 tage / Standing Wafer) in the waveform of the second resonance F2 is shown.
- the pattern antenna A 2 ′ is formed by the first area S 1 having a rectangular shape and the second area S 2 extending continuously from the first area S 1. Since it is configured, by adjusting the length L 1 of the side along the direction in which the second area S 2 extends in the first area S 1 and the length L 2 of the second area S 2, It is possible to obtain resonance in a plurality of or wide frequency bands with a simple structure.
- the chip antenna 10 has two pattern antennas, that is, the pattern antenna A 1 and the pattern antenna A 2 ′, but if the frequency band obtained by the pattern antenna A 1 is not necessary, The pattern antenna A1 may not be provided.
- the pattern antenna A 2 ′ can be formed on both the inside and the surface of the base 11. Further, when a pattern antenna of another shape is formed in addition to the pattern antenna A 2, various pattern shapes can be used. Further, instead of two pattern antennas as in the present embodiment, three or more pattern antennas can be formed.
- the pattern antenna A 1 as the first pattern and the pattern antenna A 2 as the second pattern are mostly in the stacking direction. Do not overlap.
- the structure in which the overlapping of the patterns of the plurality of pattern antennas in the stacking direction is eliminated is employed, so that the predetermined pattern antenna can be arbitrarily resonated without affecting the frequency characteristics of the other pattern antenna. An effect similar to that of the first embodiment in that the frequency can be set can be obtained.
- the resonance frequency can be finely adjusted by adjusting the area of the fixed portion.
- the present invention has been described with respect to the first and second embodiments.
- the chip antenna and the chip antenna unit of the present invention can be used for various wireless communication such as a mobile phone, a mobile terminal, and a built-in antenna of a wireless LAN card. Can be used for equipment.
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- Microelectronics & Electronic Packaging (AREA)
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03812310A EP1569296A1 (en) | 2002-11-29 | 2003-11-27 | Chip antenna, chip antenna unit and radio communication device using them |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002347735A JP2004186730A (ja) | 2002-11-29 | 2002-11-29 | チップアンテナ、チップアンテナユニットおよびそれを用いた無線通信装置 |
JP2002-347736 | 2002-11-29 | ||
JP2002-347735 | 2002-11-29 | ||
JP2002347736A JP2004186731A (ja) | 2002-11-29 | 2002-11-29 | チップアンテナおよびそれを用いた無線通信装置 |
Publications (1)
Publication Number | Publication Date |
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WO2004051800A1 true WO2004051800A1 (ja) | 2004-06-17 |
Family
ID=32473654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/015119 WO2004051800A1 (ja) | 2002-11-29 | 2003-11-27 | チップアンテナ、チップアンテナユニット及びこれらを用いた無線通信装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7023385B2 (ja) |
EP (1) | EP1569296A1 (ja) |
KR (1) | KR20050085045A (ja) |
TW (1) | TWI247451B (ja) |
WO (1) | WO2004051800A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7505008B2 (en) | 2005-09-26 | 2009-03-17 | Electronics And Telecommunications Research Institute | Electrical loop antenna with unidirectional and uniform current radiation source |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101127022B1 (ko) * | 2004-03-16 | 2012-03-26 | 히타치 긴조쿠 가부시키가이샤 | 고주파 회로 및 고주파 부품 |
EP2363916A3 (en) * | 2005-02-11 | 2011-11-09 | Kaonetics Technologies, Inc. | Antenna system |
US7274334B2 (en) * | 2005-03-24 | 2007-09-25 | Tdk Corporation | Stacked multi-resonator antenna |
KR100691162B1 (ko) * | 2005-05-16 | 2007-03-09 | 삼성전기주식회사 | 직교 헬리컬 안테나 |
JP4414940B2 (ja) * | 2005-06-14 | 2010-02-17 | ソニーケミカル&インフォメーションデバイス株式会社 | アンテナ装置及びアンテナ装置の調整方法 |
JP4414942B2 (ja) * | 2005-06-30 | 2010-02-17 | ソニーケミカル&インフォメーションデバイス株式会社 | アンテナ装置 |
JP2007027894A (ja) * | 2005-07-12 | 2007-02-01 | Omron Corp | 広帯域アンテナおよび広帯域アンテナ搭載基板 |
EP1826874A1 (en) * | 2006-02-27 | 2007-08-29 | Alps Electric Co., Ltd. | Antenna device having enhanced reception sensitivity in wide bands |
EP3324485B1 (en) | 2006-04-18 | 2023-01-11 | QUALCOMM Incorporated | Mobile terminal with a tunable multi-resonace monopole antenna |
KR100757319B1 (ko) * | 2006-05-23 | 2007-09-11 | (주)에이스안테나 | 듀얼 기판 본딩형 광대역 안테나 |
KR100811793B1 (ko) * | 2006-10-02 | 2008-03-10 | 삼성전자주식회사 | 휴대 단말기의 안테나 장치 |
US7382325B1 (en) * | 2006-11-14 | 2008-06-03 | Auden Techno Corp. | Micro stacked type chip antenna |
KR20080002338U (ko) * | 2006-12-28 | 2008-07-03 | 주식회사 이엠따블유안테나 | 다층형 내장형 안테나 |
US8031054B2 (en) * | 2007-03-27 | 2011-10-04 | Round Rock Research, Llc | Multi-antenna element systems and related methods |
KR100805279B1 (ko) * | 2007-08-23 | 2008-02-20 | 주식회사 이노칩테크놀로지 | 적층형 칩 안테나 |
JP2009135773A (ja) * | 2007-11-30 | 2009-06-18 | Toshiba Corp | アンテナ構造および電子機器 |
KR100954879B1 (ko) * | 2007-12-04 | 2010-04-28 | 삼성전기주식회사 | 안테나 내장형 인쇄회로기판 |
US7768463B2 (en) * | 2008-04-16 | 2010-08-03 | Sony Ericsson Mobile Communications Ab | Antenna assembly, printed wiring board and device |
US7825860B2 (en) * | 2008-04-16 | 2010-11-02 | Sony Ericsson Mobile Communications Ab | Antenna assembly |
US20100074315A1 (en) * | 2008-09-24 | 2010-03-25 | Quellan, Inc. | Noise sampling detectors |
EP2333901A3 (en) * | 2009-12-11 | 2011-07-13 | Samsung Electronics Co., Ltd. | Antenna device |
JP2011135124A (ja) * | 2009-12-22 | 2011-07-07 | Mitsumi Electric Co Ltd | チップアンテナ |
US8907847B2 (en) | 2012-05-02 | 2014-12-09 | Hing S. Tong | Directional antenna system for portable communication device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955618A (ja) * | 1995-08-17 | 1997-02-25 | Murata Mfg Co Ltd | チップアンテナ |
JPH1131913A (ja) * | 1997-05-15 | 1999-02-02 | Murata Mfg Co Ltd | チップアンテナ及びそれを用いた移動体通信機 |
JP2001177330A (ja) * | 1999-12-17 | 2001-06-29 | Tdk Corp | パッチアンテナ |
JP2002100915A (ja) * | 2000-09-22 | 2002-04-05 | Taiyo Yuden Co Ltd | 誘電体アンテナ |
JP2002100916A (ja) * | 2000-09-22 | 2002-04-05 | Taiyo Yuden Co Ltd | 誘電体アンテナの調整方法及び誘電体アンテナ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5748149A (en) * | 1995-10-04 | 1998-05-05 | Murata Manufacturing Co., Ltd. | Surface mounting antenna and antenna apparatus |
JPH10247808A (ja) * | 1997-03-05 | 1998-09-14 | Murata Mfg Co Ltd | チップアンテナ及びその周波数調整方法 |
JPH1155618A (ja) | 1997-08-04 | 1999-02-26 | Matsushita Electric Ind Co Ltd | ホームネットワーク |
JP3627632B2 (ja) * | 2000-07-31 | 2005-03-09 | 株式会社村田製作所 | チップアンテナ |
JP2002111344A (ja) | 2000-10-02 | 2002-04-12 | Mitsubishi Electric Corp | 携帯無線機 |
DE10049844A1 (de) * | 2000-10-09 | 2002-04-11 | Philips Corp Intellectual Pty | Miniaturisierte Mikrowellenantenne |
JP2002314330A (ja) * | 2001-04-10 | 2002-10-25 | Murata Mfg Co Ltd | アンテナ装置 |
JP4044302B2 (ja) * | 2001-06-20 | 2008-02-06 | 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無線機 |
KR100533624B1 (ko) * | 2002-04-16 | 2005-12-06 | 삼성전기주식회사 | 듀얼 피딩 포트를 갖는 멀티밴드 칩 안테나 및 이를사용하는 이동 통신 장치 |
US6778141B1 (en) * | 2003-03-06 | 2004-08-17 | D-Link Corporation | Patch antenna with increased bandwidth |
-
2003
- 2003-11-27 KR KR1020057008943A patent/KR20050085045A/ko not_active Application Discontinuation
- 2003-11-27 WO PCT/JP2003/015119 patent/WO2004051800A1/ja not_active Application Discontinuation
- 2003-11-27 EP EP03812310A patent/EP1569296A1/en not_active Withdrawn
- 2003-11-27 TW TW092133430A patent/TWI247451B/zh not_active IP Right Cessation
- 2003-11-28 US US10/722,433 patent/US7023385B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955618A (ja) * | 1995-08-17 | 1997-02-25 | Murata Mfg Co Ltd | チップアンテナ |
JPH1131913A (ja) * | 1997-05-15 | 1999-02-02 | Murata Mfg Co Ltd | チップアンテナ及びそれを用いた移動体通信機 |
JP2001177330A (ja) * | 1999-12-17 | 2001-06-29 | Tdk Corp | パッチアンテナ |
JP2002100915A (ja) * | 2000-09-22 | 2002-04-05 | Taiyo Yuden Co Ltd | 誘電体アンテナ |
JP2002100916A (ja) * | 2000-09-22 | 2002-04-05 | Taiyo Yuden Co Ltd | 誘電体アンテナの調整方法及び誘電体アンテナ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7505008B2 (en) | 2005-09-26 | 2009-03-17 | Electronics And Telecommunications Research Institute | Electrical loop antenna with unidirectional and uniform current radiation source |
Also Published As
Publication number | Publication date |
---|---|
US7023385B2 (en) | 2006-04-04 |
KR20050085045A (ko) | 2005-08-29 |
TW200409403A (en) | 2004-06-01 |
US20040119647A1 (en) | 2004-06-24 |
EP1569296A1 (en) | 2005-08-31 |
TWI247451B (en) | 2006-01-11 |
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