JP3975445B2 - ファンビームアンテナ - Google Patents
ファンビームアンテナ Download PDFInfo
- Publication number
- JP3975445B2 JP3975445B2 JP2003366637A JP2003366637A JP3975445B2 JP 3975445 B2 JP3975445 B2 JP 3975445B2 JP 2003366637 A JP2003366637 A JP 2003366637A JP 2003366637 A JP2003366637 A JP 2003366637A JP 3975445 B2 JP3975445 B2 JP 3975445B2
- Authority
- JP
- Japan
- Prior art keywords
- dielectric
- lens
- radome
- beam antenna
- thickness
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/04—Adaptation for subterranean or subaqueous use
-
- 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
- H01Q13/02—Waveguide horns
-
- 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
- H01Q19/08—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 for modifying the radiation pattern of a radiating horn in which it is located
Description
またこの媒質と空間との境界面での反射係数ΓとVSWRは、▲1▼および▲2▼式を代入整理して
と表せる。
▲3▼式より、例えば誘電体と空間との境界面でのVSWRを1.2に抑えたいとすれば、比誘電率が1.2となる。また、図4に示すように境界面は2つあり、2つの反射が合成されるが、その最悪値を考慮すると各反射係数Γを半分にする必要があり▲2▼式使って求めると比誘電率約1.1とかなり低い誘電率の材料を使う必要があり、レンズの厚みがかなり厚くなってしまうことは容易に想定できる他、成形や固定方法などの課題も大きい。
また、図5や図6に示すように中心部の誘電率を大きくできれば相対的にレンズの厚みを薄くできるが、複合材料の製法に難があり、ファンビームアンテナにはほとんど使われていなかった。
本発明は上記の課題を解決することを目的とするもので、簡便に反射の少ない誘電体レンズを構成することにより断面形状の薄い、高利得なファンビームアンテナを提供する。
このように構成することにより、本発明のファンビームアンテナは前記の課題を解決することができる。
同図ではアレー素子としてスロット導波管(1)を使った例で、フレア(2)の開口部に凸レンズ状の2枚の誘電体レンズ(5a−1,5a−2)と均一な厚みの誘電体で輻射面レドーム(3a)を配置し、その他の部分は防水筐体(4)で覆っている。なお、スロット導波管やフレアの機械的保持方法や給電系などは図から省略している。
また、本例では誘電体レンズには、両端にフレア(2)を保持するための保持突起(9a)や、中央部に2枚の誘電体レンズの間隔を保持するためのスペーサ突起(9b)を設けてある。また、中央部のスペーサ突起(9b)は輻射面レドーム(3a)と誘電体レンズ(5a−2)の間隔を保持するための低誘電率発泡材(10)の位置決め保持用としても使用している。
図8の具体的な例では各間隔など空間の比誘電率を1としたときの波動インピーダンスを1に基準化し、各誘電体の比誘電率を4として、各誘電体の波動インピーダンスを比誘電率の1/平方根である1/2とし、垂直面中央の各誘電体の厚みと間隔を下記のような
電気長(波長λ)と9.4GHzでの実寸法にしている。
レンズ(5a−1)の厚み:0.25λ,4.0mm
レンズ(5a−1)と(5a−2)の間隔:0.04λ,1.3mm
レンズ(5a−2)の厚み:0.25λ,4.0mm
レンズ(5a−2)とレドーム(3a)の間隔:0.15λ,4.8mm
レドーム(3a)の厚み:0.11λ,1.8mm
レンズの合計最大誘電体厚みは8mmであるが、各レンズの両端最小厚みをそれぞれ1mmとし、有効厚みは差し引き6mmとしている。
図7の例では中心部に対し±50mmの端では約110度位相が遅れているため、理想的には中心部が端に対し110度遅れるようなレンズとしたいことがわかる。
ここで、誘電体レンズの比誘電率をεr、厚みをdとし、dによる自由空間位相遅延ψ0と誘電体の位相遅延ψdiおよびこれらの遅延位相差ψは
となる。
また、レンズ垂直面各部の厚みは▲4▼式をdについて変形して求め、各間隔は各厚みでVSWRを十分低くできる寸法に選べば良い。
同図ではレンズを使うことにより、ビーム幅21度が18度に狭められる他、裾の切れが良くなったことを示しており、これらにより利得が約1dB上昇した。
このように配置すると進行方向に1/4波長離れた2つの同じ反射は打ち消されるという原理で優れた反射抑制効果が得られる。
2;フレア
3a;輻射面レドーム
3b,3c;誘電体レンズ形状としたレドーム
4;は防水筐体
5a,5b,5c,5d;誘電体レンズ
6;単一素材の誘電体レンズ
7;連続複合素材の誘電体レンズ
8;二重複合素材の誘電体レンズ
8a;誘電率の大きい誘電体レンズ
8b;整合層
Claims (2)
- 水平方向に長く、垂直面はホーン状のフレアを有し、アンテナ全体を防水筐体に納め、防水筐体の輻射面レドームとその内側とで、等価的に複数の誘電体板で構成し、この内の二枚を凸レンズ同様の特性を有する誘電体レンズとしたファンビームアンテナにおいて、輻射面レドームとその内側とで、等価的に2枚の誘電体をほぼ同じ凸レンズ状とし、それぞれの凸レンズの最大の厚みがある垂直断面ほぼ中央部の透過方向最大電気長を使用周波数の1/4波長かそれ以下とし、2枚のレンズのピッチをほぼ1/4波長の電気長としたことを特徴とするファンビームアンテナ。
- 水平方向に長く、垂直面はホーン状のフレアを有し、アンテナ全体を防水筐体に納め、防水筐体の輻射面レドームとその内側とで、等価的に複数の誘電体板で構成し、この内の二枚を凸レンズ同様の特性を有する誘電体レンズとしたファンビームアンテナにおいて、輻射面レドームとその内側2枚とで、等価的に3枚の誘電体板とし、最外側の誘電体板は厚さのほぼ均一なレドームとし、内側の2枚をほぼ同一形状の凸レンズ状とし、輻射面レドームとレンズの間および2枚のレンズ間に間隔をもって配置したことを特徴とするファンビームアンテナ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003366637A JP3975445B2 (ja) | 2003-09-22 | 2003-09-22 | ファンビームアンテナ |
US10/939,341 US7075496B2 (en) | 2003-09-22 | 2004-09-14 | Fan-beam antenna |
KR1020040075563A KR101070364B1 (ko) | 2003-09-22 | 2004-09-21 | 팬 빔 안테나 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003366637A JP3975445B2 (ja) | 2003-09-22 | 2003-09-22 | ファンビームアンテナ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005102094A JP2005102094A (ja) | 2005-04-14 |
JP3975445B2 true JP3975445B2 (ja) | 2007-09-12 |
Family
ID=34309307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003366637A Expired - Fee Related JP3975445B2 (ja) | 2003-09-22 | 2003-09-22 | ファンビームアンテナ |
Country Status (3)
Country | Link |
---|---|
US (1) | US7075496B2 (ja) |
JP (1) | JP3975445B2 (ja) |
KR (1) | KR101070364B1 (ja) |
Families Citing this family (181)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005064814A (ja) * | 2003-08-11 | 2005-03-10 | Sharp Corp | フィードホーン、電波受信用コンバータおよびアンテナ |
JP4263166B2 (ja) * | 2004-12-10 | 2009-05-13 | シャープ株式会社 | フィードホーン、電波受信用コンバータおよびアンテナ |
DE102005035814A1 (de) * | 2005-07-30 | 2007-02-01 | Hella Kgaa Hueck & Co. | Radom für ein Radarsystem eines Kraftfahrzeugs und Verfahren zur Herstellung eines Radoms |
JP4705439B2 (ja) | 2005-09-09 | 2011-06-22 | 富士通株式会社 | 細胞捕捉シャーレ |
JP5155538B2 (ja) * | 2006-09-11 | 2013-03-06 | 株式会社エヌ・ティ・ティ・ドコモ | 測定対象物搭載装置、電磁界特性測定システム |
JP2009031209A (ja) * | 2007-07-30 | 2009-02-12 | Ntt Docomo Inc | 測定対象物搭載装置とそれを用いた電磁界特性測定システム |
JP2009060397A (ja) * | 2007-08-31 | 2009-03-19 | Sharp Corp | パラボナアンテナ用一次放射器,ローノイズ・ブロックダウン・コンバータおよびパラボナアンテナ装置 |
JP4937876B2 (ja) * | 2007-10-11 | 2012-05-23 | シャープ株式会社 | アンテナ装置およびそれを備えた通信機器 |
JP5219794B2 (ja) * | 2008-12-26 | 2013-06-26 | 古野電気株式会社 | 誘電体アンテナ |
JP5414353B2 (ja) * | 2009-05-14 | 2014-02-12 | 三菱電機株式会社 | アンテナ装置 |
US8777938B2 (en) * | 2009-06-04 | 2014-07-15 | Wisconsin Alumni Research Foundation | Fan-beam microwave horn for bloodless resection |
US8797207B2 (en) * | 2011-04-18 | 2014-08-05 | Vega Grieshaber Kg | Filling level measuring device antenna cover |
JP5639015B2 (ja) * | 2011-07-06 | 2014-12-10 | 古野電気株式会社 | アンテナ装置、レーダ装置、及び誘電体部材の配置方法 |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9113347B2 (en) | 2012-12-05 | 2015-08-18 | At&T Intellectual Property I, Lp | Backhaul link for distributed antenna system |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
KR102202223B1 (ko) * | 2013-10-31 | 2021-01-13 | 엘지전자 주식회사 | 광 흡수체, 이미지 센서 및 태양 전지 |
US8897697B1 (en) | 2013-11-06 | 2014-11-25 | At&T Intellectual Property I, Lp | Millimeter-wave surface-wave communications |
US9209902B2 (en) | 2013-12-10 | 2015-12-08 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US9768833B2 (en) | 2014-09-15 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US10063280B2 (en) | 2014-09-17 | 2018-08-28 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9973299B2 (en) | 2014-10-14 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9577306B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9312919B1 (en) | 2014-10-21 | 2016-04-12 | At&T Intellectual Property I, Lp | Transmission device with impairment compensation and methods for use therewith |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9627768B2 (en) | 2014-10-21 | 2017-04-18 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US9544006B2 (en) | 2014-11-20 | 2017-01-10 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
JP6498931B2 (ja) * | 2014-12-25 | 2019-04-10 | 株式会社Soken | レーダ装置、及びカバー部材 |
US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US10224981B2 (en) | 2015-04-24 | 2019-03-05 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10812174B2 (en) | 2015-06-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10355367B2 (en) | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
GB2546309B (en) * | 2016-01-15 | 2020-03-18 | Cambridge Broadband Networks Ltd | An Antenna |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
JP6723133B2 (ja) * | 2016-10-04 | 2020-07-15 | 日立オートモティブシステムズ株式会社 | アンテナ、センサ及び車載システム |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US10811767B2 (en) * | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10535928B2 (en) | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
JP6838250B2 (ja) * | 2017-06-05 | 2021-03-03 | 日立Astemo株式会社 | アンテナ、アレーアンテナ、レーダ装置及び車載システム |
KR102529946B1 (ko) * | 2017-12-19 | 2023-05-08 | 삼성전자 주식회사 | 렌즈를 포함하는 빔포밍 안테나 모듈 |
JP6693682B2 (ja) * | 2018-03-23 | 2020-05-13 | 三菱電機株式会社 | レーダ装置 |
CN116130951B (zh) * | 2022-12-12 | 2023-09-22 | 江苏亨鑫科技有限公司 | 一种具有层叠介质的排气管天线 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3935577A (en) * | 1974-09-11 | 1976-01-27 | Andrew Corporation | Flared microwave horn with dielectric lens |
CA1312138C (en) * | 1988-01-11 | 1992-12-29 | Microbeam Corporation | Multimode-dielectric-loaded multi-flare antenna |
US5162806A (en) * | 1990-02-05 | 1992-11-10 | Raytheon Company | Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies |
JPH066128A (ja) * | 1992-06-19 | 1994-01-14 | Murata Mfg Co Ltd | 誘電体レンズアンテナおよびその製造方法 |
KR960003444A (ko) * | 1994-06-01 | 1996-01-26 | 제임스 디. 튜턴 | 차량 감시 시스템 |
FR2762936B1 (fr) * | 1997-04-30 | 1999-06-11 | Alsthom Cge Alcatel | Dispositif terminal-antenne pour constellation de satellites defilants |
JP3613147B2 (ja) * | 2000-06-22 | 2005-01-26 | 日本電気株式会社 | アンテナ装置 |
JP3700617B2 (ja) * | 2001-07-04 | 2005-09-28 | 株式会社村田製作所 | レンズアンテナ |
US6891513B2 (en) * | 2001-11-26 | 2005-05-10 | Vega Greishaber, Kg | Antenna system for a level measurement apparatus |
WO2004019443A1 (en) * | 2002-08-20 | 2004-03-04 | Aerosat Corporation | Communication system with broadband antenna |
-
2003
- 2003-09-22 JP JP2003366637A patent/JP3975445B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-14 US US10/939,341 patent/US7075496B2/en not_active Expired - Fee Related
- 2004-09-21 KR KR1020040075563A patent/KR101070364B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US7075496B2 (en) | 2006-07-11 |
JP2005102094A (ja) | 2005-04-14 |
KR20050029710A (ko) | 2005-03-28 |
US20050062664A1 (en) | 2005-03-24 |
KR101070364B1 (ko) | 2011-10-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3975445B2 (ja) | ファンビームアンテナ | |
EP3167510B1 (en) | Horn lens antenna | |
JP6642862B2 (ja) | デュアルバンドスプラッシュプレートサポートを含むリフレクタアンテナ | |
JP2005073226A (ja) | 反射板付平面アンテナ | |
US20190131704A1 (en) | Aperture Efficiency Enhancements Using Holographic and Quasi-Optical Beam Shaping Lenses | |
JP2010050700A (ja) | アンテナ装置およびそれを備えたアレーアンテナ装置 | |
JP2007060062A (ja) | 偏波共用アンテナ | |
TWI580106B (zh) | 用於寬頻應用的脊狀波導管陣列 | |
JP5481328B2 (ja) | アンテナ装置 | |
JP4598138B2 (ja) | 反射板付平面アンテナ | |
KR102279931B1 (ko) | 빔 스캐닝이 개선되는 평면 선형 위상 어레이 안테나 | |
JP4919423B2 (ja) | アンテナ給電部 | |
KR101887417B1 (ko) | 낮은 부엽특성을 갖는 메타물질 기반의 혼-리플렉터 안테나 | |
JP4199631B2 (ja) | 広帯域アンテナ | |
JP5613064B2 (ja) | マイクロ波用アンテナ | |
JP6278500B2 (ja) | 誘電体装荷アンテナ | |
KR102299534B1 (ko) | Uhf 대역 평면형 반사판과 이를 구비한 rfid 안테나 시스템 | |
US20080174504A1 (en) | Reflector antenna feed device | |
JP7061028B2 (ja) | 誘電体アンテナ | |
RU2624788C1 (ru) | Диапазонная направленная антенна | |
JP2005033404A (ja) | アンテナカバー | |
US9997840B2 (en) | Transmission type antenna | |
JP6593645B2 (ja) | アンテナ装置 | |
JP6160330B2 (ja) | レドーム | |
Hernandez et al. | On the effects of parasitic horns within tightly packed concave linear arrangements |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050425 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20061114 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20061121 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070117 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070605 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070607 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100629 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110629 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120629 Year of fee payment: 5 |
|
LAPS | Cancellation because of no payment of annual fees |