【摘 要】
：
据《日经微器件》2006年第8期报道,NTT DoCoMo研究机构开发了使用MEMS开关,可适应从900MHz到5GHz范围内四个频段的可变RF放大器。在技术性能改善方面突出了下列几点:1用一个
论文部分内容阅读
据《日经微器件》2006年第8期报道,NTT DoCoMo研究机构开发了使用MEMS开关,可适应从900MHz到5GHz范围内四个频段的可变RF放大器。在技术性能改善方面突出了下列几点:1用一个放大器件使可适应频段由原来的两个增加到四个;2可适应频段的上限由原来的1.9GHz提高到5GHz;3可适应的四
According to “Nikkei Micro Devices,” Issue 8, 2006, NTT DoCoMo Research Inc. has developed a variable RF amplifier that uses MEMS switches to accommodate four bands from 900MHz to 5GHz. The following points have been highlighted in terms of technical performance improvements: 1 An amplifier is used to increase the number of adaptable bands from two to four; 2 The upper limit of the adaptable band is increased from 1.9 GHz to 5 GHz;
其他文献
维修实例343故障现象：某品牌的100型三轮摩托车，投入使用不久，有用户来维修站反映：该车蓄电池经常处于亏电装态，导致电起动装置不能有力的拖动发动机起动，只有使用充电机给蓄电池补
【正】 Sinopec Baling Petrochemical Company started constructionof a 120 000 t/a styrene monomer (SM)project on August 11th at its Yueyang site,in Hunan provinc
全球2.5亿台个人电脑中,95％一开机就会出现比尔·盖茨的微软公司产品,但微软独霸软件市场的局面正面临两大挑战:美国司法部的反托拉斯官司和专门对抗微软视窗的Linux操作系统
5月上旬北京中关村电脑节刚落 下俯累,V 国际计算机与信息产品 北京展览交易会和V 中国北京高 新技术“国际周”又相继登场,北京的 5月,是I’l’业界多次盛会的华诞。 tillG
There are three reasons for China’s constantlyincreasing consumption of green,environmentally friendly pesticides.Thefirst factor is that the government hasst
Introduction: In antegrade colonic enema (ACE) appendicostomy,cecal fixation on the inside of the abdominal wall and cecal wrap around the base of the appendix
Due to the elimination of the glyphosateexport tax rebate in China and the appreciationof the RMB against the US dollar,competition in China’s glyphosate mark
December 12-13,2007,Beijing Joint Fact Sheet At Grand Epoch City near Beijing on December 12 and 13,the United States and China held the third Strategic Economi
On August 18th,a ceremony was held atJinchang,Gansu province for the officialopening of Hexipu Chemical RecycleEconomy Demonstration Park,the constructionof a
贵州建省近600年,发展水平一直滞后于全国水平。实现经济社会发展的历史性跨越,是胡锦涛总书记对贵州的深切寄语,也是全省3900万各族人民的热切期盼。
Guizhou Province was