saw filter 中文意思是什麼
saw filter
解釋
表面聲濾波器/共振器-
Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit
延遲線振蕩器由寬帶放大器、可調衰減器和聲表面波質量傳感器件構成。延遲線振蕩器輸出信號經濾波后與109mhz的本機晶體振蕩器輸出信號相混頻，通過低通濾波取其差頻，並經整形後由數字信號處理電路處理。 -
Ever since the global adoption of digital cellular phones, saw filter manufactures around the globe had to confront a market shortage of lithium tantalate substrates for the past three years
從數位式手機全球通行開始，三年來全球濾波器生產廠家一直面臨著鉭酸鋰晶片大缺貨之窘境。 -
Rf saw filter for cellular telephone
低功率無線系統用聲表濾波器 -
If saw filter for cellular telephone
無線局域網用聲表濾波器 -
Through importing advanced technology and equipments from usa, japan and europe, we built up the first world advanced smd saw filter product line in china
公司引進美國、日本、德國及瑞士的先進技術和設備，建立了我國第一條具有國際先進水平的片式（ smd ）聲表面波器件生產線。 -
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
為適用於高頻表面聲波濾波器（ rfsawfilter ）小型化的理想基材，由於具備適中的機電耦合系數且溫度系數低，已被廣泛應用在移動式高頻無線通訊器材，尤其是手機里的關鍵材料。 -
And designed a program used by this method to design a filter. the result complies with the analytic result. at the end of this paper, according to the project of airline broadcast, the author designd filter with high rectangular factor, five channelizing filter banks, saw programmable correlator implemented with multiplayer muti - chip technology, saw resonator
本文的最後，結合某航空直擴數傳電臺的工程要求，設計了高矩形系數的前置濾波器、聲表面波濾波器組、採用多晶元組裝厚膜工藝技術的聲表面波可編程相關器和聲表面波壓控振蕩器，完成了解調解擴單元的硬體設計。 -
Then, focus on several methods to simulate the saw devices, including the saw filter, saw programmable tapped delay line which can be used various modulation including bpsk, msk, qpsk, resonator with saw delay line structure
然後重點介紹聲表面波器件，包括聲表面波濾波器和聲表面波抽頭延遲線的各種設計和分析方法。側重介紹了準靜態分析法，並編制了採用該方法分析濾波器的程序，實際製作的濾波器和設計模擬結果能很好吻合。 -
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通信、無線通信中的應用，主要介紹了三種應用：二進制相移鍵控（ bpsk ） 、差分相移鍵控（ dpsk ） ，以及用saw匹配濾波器實現cck調制和解調。 -
Together with the test of its basic performance, a programmable filter using the designed chip and two saw filters, whose center frequency and bandwidth can be adjusted, is also built and tested. the test results show that, the minimum insertion loss is - 5. 2 - 10. 5db, with the maximum isolation loss lying between - 40. 5 - - 23. 4db, and the maximum continually tunable dynamic range is 21. 3db, from 50mhz to 250mhz
測試結果表明：在50 250mhz的工作頻段內，該電路導通時最小插入損耗約為- 5 - 10 . 5db ，關斷時隔離度可達- 40 . 5 - 23 . 4db左右；其連續可調的加權動態范圍最大值為21 . 3db 。 -
Saw filter for low power system
移動電話用中頻聲表濾波器 -
Saw filter for cordless telephone
無繩電話用聲表濾波器 -
Saw filter surface acoustic wave
表面聲濾波器共振器 -
Saw filter for wireless lan
移動電話用射頻濾波器 -
Rf saw filter for gps
Gps用射頻濾波器
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