The development of microwave technology is continuously pushing mobile communication equipments and portable terminals to micromation, complex, multilayer and modularization. ltcc ( low temperature co - fired ceramic ) technique is the best method to achieve the aim
Ltcc ( lowtemperatureco - firedceramic )技術是目前實現各種微
波介質陶瓷元器件微型化、復合化、片式化、模塊化的最佳途徑。
Rutile for microwave dielectric materials
微
波介質金紅石
In addition, ba6 - 3xnd8 + 2xti18o54 ( bnt ) ceramics is another important microwave dielectric material due to its applications in antenna duplexor, but the characteristics of bnt thin films have rarely been reported
同時,我們採用激光脈沖沉積法制備了ba6 - 3xnd8 + 2xti18o54 ( bnt )薄膜。 bnt是另一類被廣泛研究的微
波介質材料。
Factors influencing dielectric loss of ba b ' 1 3 b " 2 3 o3 type microwave dielectric ceramics
3型微
波介質陶瓷
介電損耗的因素
Newly developed technique for permittivity measurement of thin film by perturbation
微擾和標定技術測量薄膜微
波介電常數
Abstract : highly substituted cationic starch was prepared by microwave radiation in dry process. in this preparation, starting materials mixed with high speed stirres, potassium hydroxide used as catalyst and discontinuous heated by microwave radiation at temperature 60 85 to give 0 35 0 50 degree of substitution cationic starch the conversion of cationic reagent reached 95 the product is soluble in water it is pasted when it meets water
文摘:微
波干法制取高取代度的陽離子澱粉,用高速攪拌機混合物料,氫氧化鉀做催化劑,間歇式微
波介電加熱溫度不超過85 ,陽離子試劑的轉化率可達95 ,產品取代度0 35 0 50 ,常溫下遇水糊化,在水中有較好的溶解性。
Study on sintering of pb1. 5nb2o6. 5 microwave dielectric ceramics
5型微
波介質陶瓷粉體的焙燒工藝研究
Research on microwave dielectric ceramics and composite perovskite structure
微
波介質陶瓷和復合鈣鈦礦結構的研究
Stripline test method for complex permittivity of microwave dielectric substrates
微
波介質基片復
介電常數帶狀線測試方法
Study of interventional therapy with microwave for endobronchial tuberculosis
支氣管結核微
波介入治療的臨床研究
Preparation and dielectric properties of mullite ceramic
莫來石陶瓷的制備及其微
波介電性能研究
But its sintering temperature is so high that it cannot be sintered under 1000 with low melting point electrode materials like ag, cu etc. presently investigations about this material are mainly via glass - ceramic technique to decrease the sintering temperature and the dielectric loss is high. for the first time, this investigation manufacture a casio 3 system low dielectric and high frequency microwave dielectric ceramic via tape casting with basic material altered and additives doped
本文以casio _ 3體系為研究對象,首先對casio _ 3體系進行改性,並首次採用li _ 2o和bi _ 2o _ 3作為燒結助劑,降低體系燒結溫度,在此基礎上,採用catio _ 3調節陶瓷的頻率溫度系數,制備出微
波介電性能優良的具有工業應用價值的casio _ 3系ltcc低
介高頻微
波介質陶瓷。
Discussions and preliminary experiments are given for some potential applications of left - handed materials. experimental results which are in accordance with expects for the focusing of plane wave using symmetric rings and the focusing of radiate source using rings are obtained. simulation results are also obtained concerning the - like structure based backward radiate antenna and transmission line based left - handed structures
對稱環結構異向
介質凹透鏡的平面
波聚焦、結構異向
介質的點源會聚等實驗都得到了和預期接近的初步結果;對基於結構全固態異向
介質後向
波介質天線微
波異向
介質的實驗研究和基於微帶電路結構單元的異向
介質進行了計算機模擬研究,也取得了較好的結果。
Half - wave dielectric layer
半
波介質層
Gps mmicrowave dielectric filter
Gps微
波介質濾
波器
Gps microwave dielectric filter
Gps微
波介質濾
波器
Strip - line test methods for plural permittivity of microwave dielectric substrates
微波介質復介電常數的帶狀線法測量