翻訳と辞書 Words near each other ・ Retrobulbar block ・ Retrocalcaneal bursitis ・ Retrocausality ・ Retrocession ・ Retrocession Day ・ RetroCode ・ Retrocognition ・ Retrocolic hernia ・ Retrocom Mid-Market Real Estate Investment Trust ・ Retrocomputing ・ Retrocrush ・ Retroculus ・ Retrocuspid papilla ・ Retrode ・ Retrodiction ・ Retrodirectivity ・ Retrofile ・ Retrofit (company) ・ Retrofit (Section 25 album) ・ Retrofit Films ・ Retrofitting ・ Retroflect ・ Retroflex affricate ・ Retroflex approximant ・ Retroflex clicks ・ Retroflex consonant ・ Retroflex ejective ・ Retroflex ejective affricate ・ Retroflex ejective fricative ・ Retroflex flap Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Retrodirectivity ： ウィキペディア英語版 Retrodirectivity A retrodirective antenna is an antenna that transmits the signal back in the same direction it came from. This is based on the principle of self-phase conjugation of the input signal. Directivity depends on relative phases of signal radiated from different elements. Arrayed antenna consist of multiple, identical radiating elements. Retrodirectivity is achieved with phase conjugation by geometric placement of antenna elements (also known as heterodyning). Phase conjugation is obtained by mixing with LO (local oscillator) frequencies twice that of the incoming signal. ==Applications== Using retrodirectivity allows for faster acquisition (up to twelve times faster) than phased array antennas, and with up to twenty-five times the power output. The key advantages of retrodirective antenna over phased array antennas are less signal processing time and faster response times. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Retrodirectivity」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.