WO2009125963A2 - 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나 - Google Patents
유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나 Download PDFInfo
- Publication number
- WO2009125963A2 WO2009125963A2 PCT/KR2009/001786 KR2009001786W WO2009125963A2 WO 2009125963 A2 WO2009125963 A2 WO 2009125963A2 KR 2009001786 W KR2009001786 W KR 2009001786W WO 2009125963 A2 WO2009125963 A2 WO 2009125963A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- dielectric
- lattice
- substrate
- composite structure
- Prior art date
Links
- 230000000737 periodic effect Effects 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 239000000696 magnetic material Substances 0.000 claims description 22
- 239000003989 dielectric material Substances 0.000 claims description 17
- 230000035699 permeability Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- H01Q5/10—Resonant antennas
Definitions
- the present invention provides a composite structure in which a dielectric having a low dielectric constant and a magnetic material having a high permeability are arranged in a lattice periodic structure to improve antenna gain, efficiency, and bandwidth while maintaining miniaturization, which is an advantage of an antenna using a dielectric having a high dielectric constant. It relates to an antenna using.
- the frequency bands adopted for these DMBs are 174-216 MHz, which are mainly low frequency bands such as UHF or VHF, which resulted in limitations on the development of several mobile terminals.
- the most representative problem is the size of the antenna that is basically used in the mobile terminal.
- the size of the antenna increases as the frequency used decreases. Fabricating antennas for the UHF or VHF bands typically requires tens of centimeters (Cm) in length. However, such antennas are not suitable for use in portable terminal devices. Accordingly, research and development to reduce the size of the antenna for the portable terminal is also in full swing.
- the monopole type whip antenna or helical antenna which has been widely used in the past, has a structure that protrudes to the outside of the mobile terminal. Therefore, the use of this type of antenna has recently been avoided.
- the built-in antenna which does not protrude, has attracted a lot of attention and various portable terminals applying the built-in antenna have emerged.
- PCB antenna a printed circuit board antenna
- the characteristics of the PCB antenna are mainly used in the form of a flat antenna, it is easier to implement the circuit than the coil-shaped antenna, low cost and can solve the process problems.
- FIG. 1 is a (a) plan view showing a PCB antenna which is a conventional built-in antenna and (b) cross-sectional view taken along line II ′ of the plan view.
- a conventional PCB antenna has an antenna pattern serving as a printed circuit board (PCB) 10 on which components of a mobile terminal are mounted and a radiator patterned in a predetermined shape on the printed circuit board 10 ( 20).
- PCB printed circuit board
- the material widely used for PCB is FR4, and the antenna pattern is printed in copper (Cu).
- the size of the built-in antenna is also very large because the frequency and antenna size do not deviate from the correlation.
- these built-in antennas are also a significant limiting factor to limit the miniaturization of portable terminals.
- the DMB portable terminal is operated in a low frequency band such as UHF or VHF of 174 ⁇ 216 MHz, there are many difficulties in using the conventional PCB antenna as shown in FIG.
- antennas using high dielectric materials are not suitable for various digital multimedia broadcasting systems including terrestrial DMB, which require wide bandwidths and gains. Therefore, development of a method capable of satisfying wide bandwidths and high gains along with miniaturization of antennas has been difficult. It is required.
- the present invention devised to solve the above problems grating a dielectric having a low dielectric constant and a magnetic material having a high permeability in order to improve the antenna gain, efficiency and bandwidth while maintaining the miniaturization, which is an advantage of the antenna using a dielectric having a high dielectric constant.
- An object of the present invention is to provide an antenna using a composite structure arranged in a mold periodic structure.
- the present invention for achieving the above object, a substrate; A radiation patch formed on the substrate, wherein the substrate is an antenna using a composite structure having a lattice-shaped periodic structure of the dielectric and magnetic material, characterized in that formed of a composite structure having a lattice-shaped periodic structure to provide.
- the antenna is characterized in resonating in the multi-band.
- the radiation patch has a size of 170 mm * 170 mm
- the substrate is characterized in that formed in the size of 300 mm * 300 mm * 20 mm.
- the substrate is characterized in that the 10 mm * 10 mm size of the dielectric and 10 mm * 10 mm magnetic material is formed by the periodic lattice arrangement.
- the substrate may be formed by lattice arrangement of a dielectric having a size of 20 mm * 20 mm and a magnetic material of 20 mm * 20 mm periodically.
- the dielectric has a low dielectric constant of 2.2 and a permeability of 1.0, and the magnetic material is characterized by having a high permeability of 16 and 22.
- the present invention provides a wireless terminal device including the antenna.
- the present invention provides a lattice-shaped period between a dielectric having a low dielectric constant and a magnetic material having a high permeability to improve antenna gain, efficiency, and bandwidth while maintaining miniaturization, which is an advantage of an antenna using a dielectric having a high dielectric constant.
- An antenna using a complex structure arranged in a structure is provided.
- FIG. 1 is a (a) plan view showing a PCB antenna which is a conventional built-in antenna, and (b) cross-sectional view taken along the line II ′ of the plan view.
- FIG. 2 is a view showing an antenna using a composite structure having a lattice periodic structure of a dielectric and a magnetic material according to an embodiment of the present invention.
- 3 and 4 are diagrams showing the return loss of a patch antenna implemented on a composite structure arranged in a variety of grid periodic structures.
- FIG. 5 is a view showing a return loss of a patch antenna of the same size as an embodiment of the present invention implemented using a high dielectric constant having a dielectric constant of about 35.
- FIG. 2 is a diagram illustrating an antenna using a composite structure having a lattice periodic structure of a dielectric and a magnetic body according to an exemplary embodiment of the present invention.
- the antenna of the present invention is largely composed of a substrate 100 and a radiation patch 200 formed on the substrate 100, the substrate 100 is a dielectric 110 and a magnetic body 120 Is formed into a composite structure having a lattice periodic structure.
- the dielectric material 110 is a dielectric material having a low dielectric constant of about 2.2 and a permeability of 1.0
- the magnetic body 120 is preferably a magnetic material having a high permeability of about 16 and a permeability of 16.
- the size of the radiation patch 200 may be 170 mm * 170 mm and the total size of the composite substrate 100 may be 300 mm * 300 mm * 20 mm.
- 3 and 4 are diagrams showing the return loss of a patch antenna implemented on a composite structure arranged in various lattice periodic structures.
- FIG. 3 illustrates a case in which the substrate 100 is arranged in a lattice pattern with a period of 10 mm * 10 mm of dielectric material and 10 mm * 10 mm of magnetic material
- FIG. 4 shows a grid of 20 mm * 20 mm of dielectric material and 20 mm * 20 mm of magnetic material. It shows the return loss in case of type arrangement.
- the overall size in the composite structure having the lattice periodic structure is the same as 300 mm * 300 mm as described above, and each layer has the same period.
- a multiband antenna of more than four bands is implemented, and high gain, efficiency, and bandwidth are formed.
- FIG. 5 is a view showing the return loss of a patch antenna of the same size as an embodiment of the present invention implemented using a high dielectric constant having a dielectric constant of about 35.
- the antenna having a substrate using a conventional high dielectric material has a narrow bandwidth and a gain of -15 dB. It can be seen that the gain and efficiency are inferior to the antenna of the present invention having a gain of only -25 dB or more.
- Table 1 above compares antenna characteristics of two embodiments of the present invention disclosed in FIGS. 3 and 4 with an embodiment of a dielectric having high dielectric constant.
- the comparison data here is a calculation of bandwidth, gain, and efficiency for the first resonant frequency.
- the two embodiments of the present invention are improved in bandwidth, gain, efficiency, etc. at the same antenna size compared to the case of using a dielectric having a high dielectric constant.
- various resonant frequencies can be obtained by changing the feeding position for each lattice periodic structure.
- the present invention can design an antenna having an improved antenna gain, efficiency, bandwidth, and various resonance frequencies by using a complex structure in which a dielectric having a low dielectric constant and a magnetic material having a high permeability are arranged in a lattice periodic structure. Can be.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims (7)
- 기판;상기 기판 상에 형성되는 방사패치를 포함하며,상기 기판은 유전체와 자성체가 격자형 주기 구조를 갖는 복합 구조체로 형성되는 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 1항에 있어서,상기 안테나는 다중대역에서 공진하는 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 1항에 있어서,상기 방사패치는 170 mm * 170 mm 의 크기이고,상기 기판은 300 mm * 300 mm * 20 mm 의 크기로 형성되는 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 3항에 있어서,상기 기판은 10 mm * 10 mm 크기의 유전체 및 10 mm * 10 mm 자성체가 주기적으로 격자형 배열되여 형성된 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 3항에 있어서,상기 기판은 20 mm * 20 mm 크기의 유전체 및 20 mm * 20 mm 자성체가 주기적으로 격자형 배열되여 형성된 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 4항 또는 제 5항에 있어서,상기 상기 유전체는 유전율 2.2, 투자율 1.0의 저유전율을 갖고,상기 자성체는 유전율 16, 투자율 16의 고투자율을 갖는 것을 특징으로 하는 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나.
- 제 1항 내지 제 5항 중 어느 한 항의 안테나를 포함하는 무선단말장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801128461A CN102027634A (zh) | 2008-04-08 | 2009-04-07 | 利用具备电介质及磁性体格状周期结构的复合结构体的天线 |
EP20090729372 EP2273612A4 (en) | 2008-04-08 | 2009-04-07 | ANTENNA BASED ON A DIELECTROMAGNETIC COMPOSITE STRUCTURE WITH A PERIODIC GRID |
JP2011501729A JP5005110B2 (ja) | 2008-04-08 | 2009-04-07 | 誘電体及び磁性体の格子状周期構造を有する複合構造体を用いたアンテナ |
US12/936,905 US20110032169A1 (en) | 2008-04-08 | 2009-04-07 | Antenna based on dielectro-magnetic composite structure having a periodic lattice |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080032418A KR100992405B1 (ko) | 2008-04-08 | 2008-04-08 | 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를이용한 안테나 |
KR10-2008-0032418 | 2008-04-08 |
Publications (2)
Publication Number | Publication Date |
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WO2009125963A2 true WO2009125963A2 (ko) | 2009-10-15 |
WO2009125963A3 WO2009125963A3 (ko) | 2010-01-21 |
Family
ID=41162380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/001786 WO2009125963A2 (ko) | 2008-04-08 | 2009-04-07 | 유전체와 자성체의 격자형 주기 구조를 갖는 복합 구조체를 이용한 안테나 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110032169A1 (ko) |
EP (1) | EP2273612A4 (ko) |
JP (1) | JP5005110B2 (ko) |
KR (1) | KR100992405B1 (ko) |
CN (1) | CN102027634A (ko) |
WO (1) | WO2009125963A2 (ko) |
Families Citing this family (1)
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KR101674138B1 (ko) * | 2015-09-02 | 2016-11-09 | 성균관대학교산학협력단 | 소형 광대역 모노폴 안테나 및 그 제조 방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0514041A (ja) * | 1991-07-03 | 1993-01-22 | Nissan Motor Co Ltd | 平板パツチアンテナ |
JP2920178B2 (ja) * | 1993-03-26 | 1999-07-19 | 関西ペイント株式会社 | 電波吸収体 |
JP3493812B2 (ja) * | 1995-06-09 | 2004-02-03 | 株式会社村田製作所 | セラミック電子部品の製造方法 |
FR2803107B1 (fr) * | 1999-12-22 | 2004-07-23 | Commissariat Energie Atomique | Antenne a composite anisotrope |
JP2002344100A (ja) * | 2001-05-21 | 2002-11-29 | Sumitomo Electric Ind Ltd | 基板用誘電体材料及びその製造方法 |
JP4029274B2 (ja) * | 2002-04-09 | 2008-01-09 | ソニー株式会社 | 広帯域アンテナ装置 |
US6791496B1 (en) * | 2003-03-31 | 2004-09-14 | Harris Corporation | High efficiency slot fed microstrip antenna having an improved stub |
US6943731B2 (en) * | 2003-03-31 | 2005-09-13 | Harris Corporation | Arangements of microstrip antennas having dielectric substrates including meta-materials |
JP4358195B2 (ja) * | 2005-03-22 | 2009-11-04 | 株式会社東芝 | アンテナデバイスおよびアンテナデバイスの製造方法 |
KR100652860B1 (ko) | 2005-10-31 | 2006-12-04 | 한국과학기술연구원 | 노이즈 감쇄필름, 노이즈 감쇄 회로기판 및 이들의제조방법 |
JP5023692B2 (ja) | 2006-02-22 | 2012-09-12 | 東洋製罐株式会社 | Icタグ用基材及びこのicタグ用基材を備えたicタグ |
JP2007235460A (ja) * | 2006-02-28 | 2007-09-13 | Mitsumi Electric Co Ltd | アンテナ装置 |
US7663556B2 (en) * | 2006-04-03 | 2010-02-16 | Ethertronics, Inc. | Antenna configured for low frequency application |
JP4379470B2 (ja) * | 2006-12-28 | 2009-12-09 | ソニー株式会社 | 広帯域アンテナ装置 |
-
2008
- 2008-04-08 KR KR1020080032418A patent/KR100992405B1/ko active IP Right Grant
-
2009
- 2009-04-07 WO PCT/KR2009/001786 patent/WO2009125963A2/ko active Application Filing
- 2009-04-07 US US12/936,905 patent/US20110032169A1/en not_active Abandoned
- 2009-04-07 JP JP2011501729A patent/JP5005110B2/ja not_active Expired - Fee Related
- 2009-04-07 CN CN2009801128461A patent/CN102027634A/zh active Pending
- 2009-04-07 EP EP20090729372 patent/EP2273612A4/en not_active Withdrawn
Non-Patent Citations (2)
Title |
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None |
See also references of EP2273612A4 |
Also Published As
Publication number | Publication date |
---|---|
WO2009125963A3 (ko) | 2010-01-21 |
KR100992405B1 (ko) | 2010-11-05 |
JP5005110B2 (ja) | 2012-08-22 |
EP2273612A2 (en) | 2011-01-12 |
EP2273612A4 (en) | 2014-04-02 |
JP2011515982A (ja) | 2011-05-19 |
US20110032169A1 (en) | 2011-02-10 |
CN102027634A (zh) | 2011-04-20 |
KR20090107100A (ko) | 2009-10-13 |
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