KR20110040952A - 메타물질 구조물에 기초된 안테나 - Google Patents
메타물질 구조물에 기초된 안테나 Download PDFInfo
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- KR20110040952A KR20110040952A KR1020117004230A KR20117004230A KR20110040952A KR 20110040952 A KR20110040952 A KR 20110040952A KR 1020117004230 A KR1020117004230 A KR 1020117004230A KR 20117004230 A KR20117004230 A KR 20117004230A KR 20110040952 A KR20110040952 A KR 20110040952A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- 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
- H01Q5/15—Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
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- 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
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Abstract
Description
도 2는 네 개의 MTM 단위 셀들의 1차원 어레이를 갖는 CRLH MTM 장치의 예를 도시한다.
도 2a, 도 2b 및 도 2c는 도 2에서의 각각의 MTM 단위 셀내 부품들의 전자기적 특성 및 기능과, 각각의 등가 회로를 도시한다.
도 3은 MTM 단위 셀의 2차원 어레이에 기초된 CRLH MTM 장치의 다른 예시를 도시한다.
도 4는 1-D 또는 2-D 어레이내 및 CRLH MTM 구조물내에 형성된 안테나 소자를 포함하는 안테나 어레이의 예를 도시한다.
도 5는 네 개의 단위 셀들을 갖는 CRLH MTM 전송 라인의 예를 도시한다.
도 6, 도 7a, 도 7b, 도 8, 도 9a 및 도 9b는 전송 라인 모드 또는 안테나 모드에서 여러 조건들하에 놓여있는 도 5에서의 장치의 등가 회로를 도시한다.
도 10 및 도 11은 도 5의 장치에서의 베타 곡선을 따르는 공진 주파수 위치의 예들을 도시한다.
도 12 및 도 13은 종단된(truncated) 접지 도전층 설계를 갖는 CRLH MTM 장치의 예와 그 등가 회로를 각각 도시한다.
도 14 및 도 15는 종단된 접지 도전층 설계를 갖는 CRLH MTM 장치의 다른 예와 그 등가 회로를 각각 도시한다.
도 16 내지 도 37은 다양한 종단된 접지 도전층 설계들에 기초된 CRLH MTM 안테나 설계의 예시들 및 시뮬레이션과 측정에 기초된 각각의 성능 특성들을 도시한다.
도 38, 도 39a, 도 39b, 도 39c 및 도 39d는 완전 자기 도전체(PMC) 표면을 갖는 CRLH MTM 안테나의 하나의 예를 도시한다.
도 40은 도 38의 장치에 대해 PMC 표면을 제공하는 PMC 구조물의 예를 도시한다.
도 41a와 도 41b는 도 38의 장치의 시뮬레이션 결과를 도시한다.
도 43 내지 도 48은 CRLH MTM 장치내의 상부 셀 금속 패치와 대응 런치 패드의 상호접촉 테두리들에 관한 비직선형 테두리의 예들을 도시한다.
Claims (20)
- 제1 계층의 공통 접지 전극 영역에 형성되는 접지 전극 및 안테나 구조를 포함하는 왼손오른손 혼합형(Composite Left and Right Handed; CRLH)에 기반한 장치에 있어서,
복수의 도전성 셀 패치;
상기 복수의 도전성 셀 패치 중 적어도 하나에 용량성으로 결합되어 (capacitively coupled) 상기 복수의 도전성 셀 패치 중 적어도 하나와 직렬 캐패시턴스를 형성하는 피드 구조; 및
상기 복수의 도전성 셀 패치를 상기 접지 전극에 결합시키는 적어도 하나의 도전성 비아 및 적어도 하나의 비아 스트립 라인을 포함하고,
상기 적어도 하나의 도전성 비아 각각은 상기 접지 전극과 분로(shunt) 인덕턴스를 형성하고,
상기 적어도 하나의 도전성 비아는 각각의 도전성 셀 패치와 상기 적어도 하나의 비아 스트립 각각을 상기 안테나 구조의 풋프린트에서 결합시키고,
상기 공통 접지 전극 영역은 상기 제1 계층에서 상기 안테나 구조의 풋프린트를 둘러싸지 않는 것을 특징으로 하는 왼손오른손 혼합형(Composite Left and Right Handed; CRLH)에 기반한 장치. - 제1항에 있어서,
제1 측면상의 제1 표면과 제2 측면상의 제2 표면을 갖는 기판을 더 포함하고, 상기 제1 계층은 상기 제1 표면 상에 형성되고 제2 계층은 상기 제2 표면 상에 형성되는, 왼손오른손 혼합형에 기반한 장치. - 제2항에 있어서,
상기 피드 구조는:
상기 복수의 도전성 셀 패치 중 적어도 하나에 근접하여 배치되는 런치 패드를 더 포함하는, 왼손오른손 혼합형에 기반한 장치. - 제2항에 있어서,
상기 기판은 유전체 계층을 포함하고, 금속-절연체-금속(MIM) 구조를 갖는 왼손오른손 혼합형에 기반한 장치. - 제2항에 있어서,
상기 안테나 구조는,
상기 피드 구조와 상기 복수의 도전성 셀 패치 중 적어도 하나 사이의 용량성 결합(capacitive coupling) 및 상기 복수의 도전성 셀 패치 중 적어도 하나와 상기 접지 전극 사이의 유도성 로딩(inductive loading)을 구비하여 상기 복수의 도전성 셀 패치 중 적어도 하나와 상기 접지 전극 사이의 분로 캐패시턴스를 감소시키는 CRLH 구조를 포함하는, 왼손오른손 혼합형에 기반한 장치. - 제2항에 있어서,
상기 적어도 하나의 비아 스트립 라인은 상기 제2 계층의 비-도전성 영역에 형성되고, 상기 비-도전성 영역은 상기 공통 접지 전극 영역과 분리되어 있는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 피드 구조는 상기 복수의 도전성 셀 패치의 제1 도전성 셀 패치에 용량성으로 결합되고,
상기 복수의 도전성 셀 패치의 제2 도전성 셀 패치에 용량성으로 결합되는 적어도 하나의 추가 피드 구조를 포함하는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
분로 캐패시턴스는 상기 접지 전극과 상기 복수의 도전성 셀 패치 각각 사이에 형성되고, 상기 피드 구조는 직렬 인덕턴스를 형성하고, 상기 분로 캐패시턴스와 상기 직렬 인덕턴스는 주 공진 주파수(main resonant frequency)를 가능하게 하는 오른손 모드와 연관되는, 왼손오른손 혼합형에 기반한 장치. - 제8항에 있어서,
상기 직렬 캐패시턴스와 상기 분로 인덕턴스는 상기 주 공진 주파수 보다 낮은 부가적 공진 주파수를 가능하게 하는 왼손 모드와 연관되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 피드 구조는 분리된 캐패시터(discrete capacitor)에 의해 상기 복수의 셀 패치 중 적어도 하나에 용량성으로 결합되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 공통 접지 전극 영역과 상기 셀 패치 영역은 각각의 계층들 상에서 반대편 종단들에 형성되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 공통 접지 전극 영역은 상기 안테나 구조의 풋프린트를 둘러싸지 않는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 공통 접지 전극 영역은 상기 적어도 하나의 비아 스트립 라인을 둘러싸지 않는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 적어도 비아 스트립 라인은 상기 안테나 구조의 풋프린트에 형성되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 안테나 구조와 연관된 방사 패턴을 조작(manipulate)하도록 구성된 적어도 하나의 기생 소자를 더 포함하는, 왼손오른손 혼합형에 기반한 장치. - 제15항에 있어서,
상기 적어도 하나의 기생 소자는, 하나 이상의 방향으로 증가된 이득을 생성하는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 피드 구조는 상기 접지 전극에 연결되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 제1 표면은 상기 제2 표면을 대면하고, 상기 도전성 셀 패치들 중 적어도 하나 및 상기 피드 구조는 상기 기판의 상기 제1 표면 상에 형성되고, 상기 적어도 하나의 비아 스트립 라인 및 접지 전극은 상기 기판의 상기 제2 표면 상에 형성되는, 왼손오른손 혼합형에 기반한 장치. - 제1항에 있어서,
상기 안테나 구조는 복수의 서로 다른 파장에서 공진하도록 구성되는, 왼손오른손 혼합형에 기반한 장치. - 기판 표면 상에 접지 전극을 형성하는 단계; 및
적어도 하나의 안테나 소자를 형성하는 단계를 포함하고,
상기 적어도 하나의 안테나 소자를 형성하는 단계는:
셀 패치 영역을 갖는 도전성 셀 패치를 형성하는 단계로서, 상기 접지 전극은 상기 셀 패치 영역에 의해 상기 기판 표면 상에 투영되는(projected) 풋프린트 바깥쪽에 있는, 도전성 셀 패치 형성 단계;
상기 도전성 셀 패치에 근접해서 용량성으로 결합되어 직렬 캐패시턴스를 형성하는 피드 구조를 형성하는 단계;
상기 도전성 셀 패치를 상기 접지 전극에 결합시켜 분로(shunt) 인덕턴스를 형성하는 적어도 하나의 도전성 비아 및 적어도 하나의 접지 전극 스트립을 형성하는 단계로서, 상기 적어도 하나의 도전성 비아는 각각의 도전성 셀 패치와 상기 적어도 하나의 접지 전극 스트립 각각을 상기 풋프린트 내에서 결합시키는, 적어도 하나의 도전성 비아 및 적어도 하나의 접지 전극 스트립 형성 단계; 및
적어도 하나의 기생 소자를 형성하는 단계를 포함하고,
각각의 기생 소자는 상기 적어도 하나의 안테나 소자와 관련된 방사 패턴을 조작(manipulate)하도록 구성되고, 상기 적어도 하나의 기생 소자는 상기 접지 전극에 연결된 피드 라인을 포함하는 것을 특징으로 하는 방법.
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US84018106P | 2006-08-25 | 2006-08-25 | |
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US82667006P | 2006-09-22 | 2006-09-22 | |
US60/826,670 | 2006-09-22 | ||
PCT/US2007/076791 WO2008024993A2 (en) | 2006-08-25 | 2007-08-24 | Antennas based on metamaterial structures |
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KR1020117004230A KR101236313B1 (ko) | 2006-08-25 | 2007-08-24 | 메타물질 구조물에 기초된 안테나 |
KR1020097005625A KR101086743B1 (ko) | 2006-08-25 | 2007-08-24 | 메타물질 구조물에 기초된 안테나 |
KR1020107009769A KR101236226B1 (ko) | 2006-08-25 | 2007-08-24 | 메타물질 구조물에 기초된 안테나 |
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JP4918594B2 (ja) | 2012-04-18 |
WO2008024993A2 (en) | 2008-02-28 |
TW200832812A (en) | 2008-08-01 |
KR101086743B1 (ko) | 2011-11-25 |
KR20100051883A (ko) | 2010-05-18 |
JP2010502131A (ja) | 2010-01-21 |
US7847739B2 (en) | 2010-12-07 |
US20110039501A1 (en) | 2011-02-17 |
EP2070157A2 (en) | 2009-06-17 |
KR101236313B1 (ko) | 2013-02-22 |
US20080048917A1 (en) | 2008-02-28 |
US8604982B2 (en) | 2013-12-10 |
KR101236226B1 (ko) | 2013-02-21 |
EP2070157A4 (en) | 2014-05-21 |
CN101542838B (zh) | 2013-03-13 |
CN101542838A (zh) | 2009-09-23 |
US7592957B2 (en) | 2009-09-22 |
KR20100051136A (ko) | 2010-05-14 |
EP2070157B1 (en) | 2017-10-25 |
TWI449257B (zh) | 2014-08-11 |
US20100238081A1 (en) | 2010-09-23 |
WO2008024993A3 (en) | 2008-07-24 |
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