Along with low optical fibers and high performance laser ' s development , optical fiber communication system and optical fiber passes system both need to be made a certain shape to produce various grow intervocalic oarts of apparatuses 随着低损耗光纤和高性能激光器的发展，光纤通信系统和光纤传感系统都需要把光纤弯曲成一定形状制作各种光纤元器件。
Simple switching power supply management ic was popular used in computer , electronic equipment , communications equipment for its low power consumption , high efficiency , lowest component count switcher solution 单片开关电源以其低损耗、高效率及电路简洁等显著优点而受到人们青睐,并广泛应用于计算机、电子设备、仪器仪表、通信设备及家用电器产品中。
It ' s most important performance is low insertion loss and facility of realization . utilizing ridge waveguide we have designed a waveguide - microstrip transition , in 32ghz ~ 37ghz frequency range , which have a loss less than 0 . 2db 在波导作为常用传输线的毫米波系统中，波导-微带转换结构是必不可少的部件，其关键性能指标是低损耗以及结构实现的容易性。
Because of its excellent electro - optic effect , very short electro - optical response time , and wide transparent wavelength range , linbo _ 3 material meet the demands of low - loss , low drive voltage , high - speed and wide - band intensity modulator 由于linbo _ 3材料具有良好的电光效应、很短的电光响应时间、较宽的透明波长范围,因而适合于制低损耗、低电压、高速宽带强度调制器。
A one - dimensional anisotropic lhm sample based on - like metallic patterns is realized for the first time . the experimental results indicate that , such sample has advantages of wide band , low loss and is easy to produce . 5 实验表明，该结构具有带宽宽、损耗低、易于加工等多种优点； 5 、通过使用多层印制电路热压工艺，首次实现了基于结构的全固态、低损耗一维异向介质。
Because of its excellent electro - optic effect , very short electro - optical response time , and wide transparent wavelength range , linbo _ 3 material meet the demands of low - loss , low drive voltage , high - speed and wide - band intensity modulator 又由于linbo _ 3材料具有良好的电光效应、很短的电光响应时间、较宽的透明波长范围,因而适合用于制作低损耗、低电压、高速宽带强度调制器。
Because linbo _ 3 material have the characteristics such as good electro - optic , short electro - optic time response and high transnissivity , it is suitable substrate material used as manufacturing low loss waveguid device and has broad application prospects 由于linbo _ 3材料具有良好的电光效应、较短的电光响应时间和高透射率特性,因而适宜制作低损耗导波器件的衬底材料,应用前景广阔。
Our research results are listed in the following items . the use of ps / ops was proposed as a low - loss and low - dielectric - constant inter - layers for passive elements in the ( mmic ) . a complete process flow has been developed for ps thick layers up to sooum 已经取得的研究成果有： a 、论文采用氧化多孔硅作为单片微波集成电路中无源器件低损耗、低介电常数的介质膜，研究开发了厚度达500 m多孔硅的制备技术。
The insertion loss is less than 0 . 5 db per unit cell and the effective band is wider than 1 ghz . such characteristics and the stable electronmagnetic and mechanical properties make it possible for it in the real applications , therefore has significant meanings . 6 其低损耗、宽带、结构牢固、电磁及机械性能稳定的特点，对于异向介质的实际应用具有重要意义； 6 、对异向介质多种潜在应用进行了实验尝试和探讨。
Due to its advantages of high power capacity , weak dispersion , easier fabrication and low ohmic losses , the folded rectangular groove guide would be an excellent slow - wave structure in millimeter and submillimeter wave twts 曲折矩形槽波导结合了曲折波导散热能力强、色散特性好、容易加工和矩形槽波导单模工作、低损耗、大尺寸等优点，因此这种新型的慢波系统有可能在毫米波及亚毫米波段的行波管中具有较好的发展前景。
