2 . we general introduce the principle of microwave disinfection and the mechanism of electroporation 2 .詳細地介紹微波滅菌的基本原理,及與本文密切相關(guān)的電穿孔機理。
This paper researches basic principle of microwave digital phase shifter deeply , reviews different theories of all kinds of microwave digital phase shifter circuit . the phase shifter is designed use agilent advanced design system 本文對微波數(shù)字式移相器的基本理論進行了較深入的研究;綜述了各種微波數(shù)字式移相器電路的工作原理。
This paper researches basic principle of microwave digital phase shifter deeply , reviews different theories of all kinds of microwave digital phase shifter circuit , analyzes loaded - line phase shifter in detail and draws design curves according to formulas . and this paper presents a novel method , which makes use of modeling simulation that software - ansoft serenade 8 . 7 provides to evaluate parameter values of pin diodes through s parameter measurement . then , a kind of 6 - bit digital phase shifter circuit is designed and simulated through software - ansoft serenade 8 . 7 本文對微波數(shù)字式移相器的基本理論進行了較深入的研究;綜述了各種微波數(shù)字式移相器電路的工作原理,著重對加載線式移相器電路進行了理論分析,并根據(jù)計算公式作出一系列相應(yīng)設(shè)計曲線;提出利用軟件ansoftserenade8 . 7所提供的測量數(shù)據(jù)擬合功能,通過測量s參數(shù)來確定pin二極管等效電路參數(shù)的新穎實驗方法;利用微波電路設(shè)計軟件ansoftserenade8 . 7對6位數(shù)字式移相器電路進行仿真、優(yōu)化設(shè)計,做出樣品,并對其性能測試分析,對研制微波數(shù)字式移相器具有重要的參考意義。
Firstly , the paper introduces briefly the detecting principle of microwave radiometer and the scheme of lunar microwave radiometer . based on propagation matrix , an algorithm to get reflectivity of layered medium is brought in . by means of the method , the reflectivity expression of two - layer medium is obtained 本文首先簡要介紹了微波輻射計的探測原理及月球探測衛(wèi)星微波輻射計的設(shè)計方案,還介紹了利用傳播矩陣計算分層媒質(zhì)的反射率的方法,并給出雙層媒質(zhì)的反射率表達式,分析了雙層媒質(zhì)的反射率隨觀測角、頻率和第一層厚度的變化關(guān)系。
Abstract : the development of the research on the microwave - assisted organic chemisty since 1986 is reviewed . the principles of microwave irradiation accelerating organic reactions is introduced . the application of various microwave reactors is also reviewed . and the development of microwave - assisted organic chemistry is discussed in this paper 文摘:綜述了微波有機化學自1986年以來的研究進展.介紹了微波輻射促進有機化學反應(yīng)速度的原理及各種微波反應(yīng)器的應(yīng)用現(xiàn)狀.同時也展望了微波有機化學的發(fā)展前景