bandpass filters 中文意思是什麼
-
Two high q bandpass filters at millimeter wave band based on substrate integrated waveguide ( siw ) and low temperature co - fired ceramics ( ltcc ) are designed in this thesis, and one is realized
本文主要講述了基於介質集成波導（ siw ）技術和ltcc工藝的毫米波頻段高q濾波器的研製。 -
Two kinds of filters are presented : by transferring the conventional waveguide cavity filter to the siw, a narrow bandstop filter is designed and simulated, get characteristic of narrow - band bandstop filtering. for example, relative bandwidth 1. 2 %, most attenuation of 48db in band. electromagnetic bandgap ( ebg ) structures present “ forbidden band ” characteristics, siw features high - pass characteristics, so bandpass filters can be composed by combing ebg and siw
本論文提出了兩種基片集成波導濾波器結構:將傳統的腔體濾波器概念運用於基片集成波導結構，設計出了一種窄帶帶阻濾波器，對其進行模擬，得到了窄帶帶阻濾波特性，如相對帶寬為1 . 2 % ，最大衰減為48db 。 -
Butterworth - type and bessel function - type two ways are used for design of bandpass filter for receiver, and with the help of eda simulation tools, the bold plot and the group delay characteristics of the filters designed are compared
摘要採用巴特沃思型和貝塞爾函數型2種方法進行接收機帶通濾波器設計，藉助eda對該濾波器進行波特圖和群延遲特性的比較。 -
Frequency limitations of log - domain current - mode bandpass filters
對數域電流模式帶通濾波器的頻率限制 -
In this paper, an optimized design method is presented to deal with the edge field effect problem in the parallel - coupled microstrip bandpass filters
摘要提出一種通過提升設計頻率來解決平行耦合微帶帶通濾波器中邊緣場效應導致的中心頻率偏移的方法。 -
To date, most research on cmos rf circuits is focused on cmos rf front - end including some key building blocks such as low - noise amplifier ( lna ), mixer, bandpass filters, voltage control oscillators and power amplifiers. in si rf 1c, inductors need be realized on a silicon substrate along with all of the other devices in a single chip. in fact, the need for high q integrated inductors in rfics is increasing
在無線通信技術對cmos射頻集成電路需求的大背景下，本論文在大量深入調研的基礎上，圍繞射頻集成電路中必不可少的、有多種應用的無源器件?硅集成電感及其相關的cmos射頻集成單元電路，先後在上海冶金所微電子分部工藝線上及利用上海市科委的多目標晶元項目（ mpw ）在無錫華晶上華半導體有限公司進行了大量的實驗研究，得到了一些新的結果。 -
The paper discussed the bandpass filters analysis method and the technology of linear prediction code ， then reduced the lpcc and the mfcc parameters
本文還介紹了語音信號分析方法中的濾波器組分析方法和線性預測編碼技術，並推導了lpcc參數和mfcc參數。 -
Software radio which promises well needs a kind of wideband high speed and resolution adc, but at present it is hard to realize. on the basis of the theory of multirate signal processing, the theory of filters, bandpass sampling theorem and adc principium, perfect reconstruction quadrature mirror filter ( prqmf ) banks adc system is proposed
基於此背景，本文在融合多速率數字信號處理理論、濾波器理論、帶通采樣定理以及adc原理的基礎上，提出了prqmf濾波器組adc系統，並對該adc系統的原理、結構、特性進行了探討和研究，其主要結論和創新之處如下： 1 -
The following is a partial list of suspended substrate bandpass filters and their specifications that we have produced
以下為生產過的懸置微帶帶通濾波器部分產品規格。 -
Two type microwave bandpass filters are applied to meet different bandwidth requirements. the filters of the 2 % relative bandwidth is realized by ^ / 4 coupled waveguide filters, whereas the ones of 1 % relative bandwidth utilizes e - plane septum mounted in the wavefuides. very compact diplexers are achieved by different configurations individually
根據不同的設計指標，作者提出了兩種雙工器模型：波導分支濾波器雙工器和準平面e面波導雙工器；並且選用不同的濾波器形式來實現通道濾波器：用4耦合波導濾波器設計出相對帶寬為2的窄帶濾波器，而相對帶寬僅為1的極窄帶濾波器是採用過正面濾波器來實現的。
分享友人