| タイトル | A Microfabricated 8-40 GHz Dual-Polarized Reflector Feed |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140017771 |
| 著者（英） | Lambert, Kevin; Durham, Tim; Caba, Aaron; Karasiewicz, David; Miranda, Felix; Stacy, William; Vanhille, Kenneth; Trent, Christopher |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2014-09-23 |
| 言語 | eng |
| 内容記述 | Planar antennas based on tightly coupled dipole arrays (also known as a current sheet antenna or CSA) are amenable for use as electronically scanned phased arrays. They are capable of performance nearing a decade of bandwidth. These antennas have been demonstrated in many implementations at frequencies below 18 GHz. This paper describes the implementation using a relatively new multi-layer microfabrication process resulting in a small, 6x6 element, dual-linear polarized array with beamformer that operates from 8 to 40 GHz. The beamformer includes baluns that feed the dual-polarized differential antenna elements and reactive splitter networks that also cover the full frequency range of operation. This antenna array serves as a reflector feed for a multi-band instrument designed to measure snow water equivalent (SWE) from airborne platforms. The instrument has both radar and radiome try capability at multiple frequencies. Scattering-parameter and time-domain measurements have been used to characterize the array feed. Radiation patterns of the antenna have been measured and are compared to simulation. To the best of the authors' knowledge, this work represents the most integrated multi-octave millimeter-wave antenna feed fabricated to date. |
| NASA分類 | Earth Resources and Remote Sensing; Space Communications, Spacecraft Communications, Command and Tracking |
| レポートNO | GRC-E-DAA-TN17614 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/61454 |
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