For very high frequency clocks , a surface acoustic wave ( saw ) oscillator is preferable 對(duì)于非常高的頻率時(shí)鐘,用聲表面波振蕩器更好。
This paper emphasizes on surface acoustic wave ( saw ) devices used in spread spectrum communication system 本文重點(diǎn)介紹了聲表面波器件在擴(kuò)頻通訊系統(tǒng)中的應(yīng)用。
Finally , we set some applications for surface acoustic wave ( saw ) devices in the field of mobile systems and wireless communications 11b的性能,最后研究了聲表面波( saw )器件在移動(dòng)系統(tǒng)和無(wú)線通信中的應(yīng)用。
As a novel sensor , the surface acoustic wave ( saw ) sensor can be used to measure different sorts of physical , chemical and biologic quantities 作為一種新型傳感器,聲表面波( surfaceacousticwave ,簡(jiǎn)稱saw )傳感器可以被用于測(cè)量多種物理、化學(xué)、生物參數(shù)。
Surface acoustic wave ( saw ) motor is a novel micro actuator , which generates saw with the electroacoustic transducer and transfers it to the power of saw motor by the frictional force between the slider and the stator 表面彈性波馬達(dá)是一種以電聲換能器產(chǎn)生表面彈性波,并通過(guò)馬達(dá)動(dòng)子和定子的接觸摩擦將表面彈性波振動(dòng)轉(zhuǎn)換為馬達(dá)動(dòng)力的新型執(zhí)行器。
The study on single electron transportation induced by a high frequency surface acoustic wave ( saw ) has important influence on the base theory of physics , further development of semiconductor devices and the research of metrology 高頻表面聲波( saw )驅(qū)動(dòng)下的單電子輸運(yùn)問(wèn)題的研究對(duì)物理學(xué)的基礎(chǔ)理論、半導(dǎo)體器件的進(jìn)一步發(fā)展和計(jì)量學(xué)的研究具有重要意義。
Has been recognized as an ideal substrate material for the rf surface acoustic wave ( saw ) filter , a key component within wireless communication devices as mobile phones . its stability and size make it the preferred option among other piezoelectric materials 為適用于高頻表面聲波濾波器( rfsawfilter )小型化的理想基材,由于具備適中的機(jī)電耦合系數(shù)且溫度系數(shù)低,已被廣泛應(yīng)用在移動(dòng)式高頻無(wú)線通訊器材,尤其是手機(jī)里的關(guān)鍵材料。
The paper mainly introduces the development of pebs and ses detection , and focus on the principle , constitutes and detection results of seb dna by using the quartz crystal microbalance ( qcm ) and surface acoustic waves ( saw ) piezoelectric biosensors respectively 論文主要介紹了壓電生物傳感器與葡萄球菌腸毒素檢測(cè)研究進(jìn)展,同時(shí)重點(diǎn)介紹了體波式( qcm )和聲表面波式( saw )兩種用于sebdna檢測(cè)的壓電生物傳感器原理、制作方法并對(duì)其檢測(cè)結(jié)果作了報(bào)告。
Surface acoustic wave ( saw ) device is an advanced analog signal processing device by means of acoustic wave character . since saw technologies is applied thirty years ago , saw devices accelerate growth because of their broad use and in the meantime their performance are raised constantly . because its high performance , light weight and good consistency , it is widely used in modern microwave communication and radar system and so on 聲表面波( saw )器件是一種新型的利用聲波特性的模擬信號(hào)處理器件。聲表面波技術(shù)自誕生至今三十多年來(lái),因其用途廣泛而得到迅速的發(fā)展,同時(shí)其性能也在不斷地提高。由于saw器件性能優(yōu)良、重量輕、體積小、一致性好,廣泛地應(yīng)用于現(xiàn)代微波通信、雷達(dá)等系統(tǒng)中。
Chapter five highlighted on some applications of surface acoustic wave ( saw ) filters that have been used in mobile and wireless communications , we have explained two applications , binary phase - shift keying ( bpsk ) , and differential phase - shift keying ( dpsk ) , we also proposed an application to implement the cck codewords and the cck demodulation using saw matched filter 第五章研究了聲表面波濾波器在移動(dòng)通信、無(wú)線通信中的應(yīng)用,主要介紹了三種應(yīng)用:二進(jìn)制相移鍵控( bpsk ) 、差分相移鍵控( dpsk ) ,以及用saw匹配濾波器實(shí)現(xiàn)cck調(diào)制和解調(diào)。