Výsledky vyhledávání - "ダイポールアンテナ"

Broadband Characteristic of U-Shaped Folded Dipole Antenna for WiMAX in Consideration of Ground Plane using PSO

Autor: Nguyen, Tuan Hung, Morishita, Hisashi, Koyanagi, Yoshio, Izui, Kazuhiro, Nishiwaki, Shinji

Publikováno v: 電子情報通信学会技術研究報告. A・P, アンテナ・伝播. 111(172):63-68

既に, USBドングルでの使用を想定したWiMAX用U字型折返しダイポールアンテナを取り上げ, その広帯域特性について検討した.解析モデルは板状のきょう体(75mm×31mmの導体板)上の端に配置し�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::31889e2820085c5c16f10a0d31510eae
http://hdl.handle.net/2433/193841

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Study on sounder system for planetary exploration

Autor: Kumamoto, Atsushi, Ono, Takayuki, Kasaba, Yasumasa, Iijima, Masahide, Higuchi, Ken, Kobayashi, Takao

Publikováno v: 第29回太陽系科学シンポジウム平成19年度 = 29th Solar System Exploration Symposium 2007. :31-34

Concepts studies of new sounder system for the planetary exploration have been performed based on KAGUYA (SELENE: SELenological and ENgineering Explorer)/LRS (Lunar Radar Sounder) specification. In order to achieve high S/N sounder observation with l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::8271173f37e802c5971798695755174c
http://id.nii.ac.jp/1696/00019945/

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Result of flight experiment of inflatable antenna using sounding rocket S-520-23

Autor: Higuchi, Ken, Ogi, Yoshiro, Watanabe, Kazuki, Watanabe, Akihito

Publikováno v: 第23回宇宙構造・材料シンポジウム = 23rd Symposium on Aerospace Structure and Materials. :77-80

S-520-23号機に搭載されたインフレータブル伸展方式アンテナは全伸展したことが確認され、EVMR(Electric field and VLF/MF band radio Receiver)-ANTとして電場・VLF(Very Low Frequency)/MF(Medium Frequency)帯電波�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::417c603dc763ffabc7d87e94d8828608
http://id.nii.ac.jp/1696/00015110/

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Proposal of a detection system of space debris impact on large spacecraft

Autor: Soma, Eriko, Chiba, Shigeo, Takano, Tadashi, Hasegawa, Sunao, Sano, Masatoshi

Publikováno v: 宇宙航空研究開発機構特別資料: 第3回宇宙環境シンポジウム講演論文集 = JAXA Special Publication: Proceedings of the 3rd Spacecraft Environment Symposium. :123-126

資料番号: AA0063585023
レポート番号: JAXA-SP-06-035

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::d064cd5cdedfae9cd51c3cee88805063
http://id.nii.ac.jp/1696/00005704/

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SSPS用大規模アレーアンテナの電流分布の研究:宇宙エネルギー利用システムの研究

Autor: Sezai, Toshihiro, Hisada, Yasumasa

Publikováno v: 宇宙航空研究開発機構特別資料: 平成18年度宇宙航空研究開発機構総合技術研究本部宇宙科学研究本部研究成果報告書 = JAXA Special Publication: Report on Research Achievements for FY2006 Institute of Space and Astronautical Science, Institute of Aerospace Technology, Japan Aerospace Exploration Agency. :173-178

The microwave based power transmission system (M-SSPS) is a huge system and its microwave transmitting antenna is also very large. Its aperture size is assumed to 1 to 2 km and the antenna would be composed of array antennas of one billion elements.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::ef1147e0ec92454e909395245845c1a9
http://id.nii.ac.jp/1696/00006016/

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Development of a dual frequency system for the observation of the Jovian Synchrotron Radiation using the Iitate Planetary Radio Telescope (IPRT)

Autor: Imai, Kota, Misawa, Hiroaki, Tsuchiya, Fuminori, Morioka, Akira, Watanabe, Takuo, Kudo, Riichi

Publikováno v: 第39回月・惑星シンポジウム = Proceedings of the 39th ISAS Lunar and Planetary Symposium. :37-40

We have made regular observations of the Jovian Synchrotron Radiation (JSR) with the Iitate Planetary Radio Telescope (IPRT) at 325 MHz since 2003. As a further project of IPRT, we have developed a new dual frequency receiver system which enables sim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::95e4768c834c1d9291658729872730f1
http://id.nii.ac.jp/1696/00020466/

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Study on the power transmission system for a solar power satellite

Autor: Tanaka, Koji, Iida, Yusuke, Niki, Yohei, Aoki, Hideyuki, Kawasaki, Shigeo, Sasaki, Susumu

Publikováno v: 第6回宇宙科学シンポジウム = Proceedings of the 6th Space Science Symposium. :403-406

宇宙太陽発電衛星(SPS: Solar Power Satellite)はkmクラスの巨大な送電アンテナを衛星軌道上に構築し、地上においてマイクロ波として電力を受電するシステムである。送電距離が36,000kmにおよ�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::341e3cefe229f652ea3d2edc11a2ad24
http://id.nii.ac.jp/1696/00011228/

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FDTD Method for Site Attenuation Analysis of Compact Anechoic Chamber Using Large-Cell Concept

Publikováno v: 電気学会論文誌. A, 基礎・材料・共通部門誌. 125(10):784-790

In this paper, the FDTD method has been applied to analyze the site attenuation of an anechoic chamber at 100 MHz or less where the ray tracing method is not applicable. To calculate site attenuation by a personal computer, the dipole antenna and the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::87713b84dd82d09e81320f015a87353b
https://kyutech.repo.nii.ac.jp/records/7317

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Evaluation Method of Small Anechoic Chamber by Site Attenuation Distribution Using Spherical Dipole Antenna

Publikováno v: 電子情報通信学会論文誌. B, 通信. (3):656-664

サイト減衰量は半波長ダイポールアンテナ等を用いて評価されているが, これらのアンテナは半波長程度の大きさが必要であるので小型電波無響室の評価には適していない.本論文では, �

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::b884aa145d90b205dadc495df91afe90
https://kyutech.repo.nii.ac.jp/records/1033

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