The antenna system has a good characteristic with wide symmetrical beamwidth , broad impedance bandwidth and compact structure 整个线性渐变槽天线系统具有对称波瓣、宽频带、宽主瓣和结构紧凑等特点。
Utilizing the benefits of varactor and bowtie and fractal structures , some interesting characteristics of these elements were found 该结构单元为设计宽频带、动态方向图扫描的阵列反射天线奠定了基础。
Time service is a important content in seismic observation . measure precision of time - synchronization effects the quality of recording 本文给出了一种应用在宽频带地震记录仪中基于gps授时信号的时间同步技术。
Integrated circuits - measurement of electromagnetic emissions , 150 khz to 1 ghz - measurement of radiated emissions - tem cell and wideband tem cell method 集成电路. 150khz至1ghz电磁辐射的测量.辐射释放测量. tem辐射室和宽频带tem辐射室法
Grading standard of quelity for broadband amplifier used in cabled distribution systems primarily intended for sound and television signals operating between 30mhz and 1ghz 30mhz 1ghz声音和电视信号的电缆分配系统宽频带放大器质量分等标准
Transmission of audio and or video and related signals using infra - red radiation - part 2 : transmission systems for audio wide band and related signals 使用红外线辐射的声频和或视频及相关信号的传输.第2部分:声宽频带和有关信号用传输系统
The paper then designs the broadband multimode test cavity and solves the problem of mode identifying automatically and mode searching in the test of low loss dielectric material 本文设计了宽频带一腔多模测试腔,并成功地解决了测试中模式识别和搜索技术。
( 2 ) the digital broad - band seismographs used by seismologists have high quality long period characteristics and the records are suitable for studying long period ground motions （ 2地震学家攸用的数字宽频带地震仪具有良好的口朋特性，其记录较适介十k川朋地震动研究。
Because of low noise figure , high linear , broad frequency scale and simple structure , lossless feedback broadband amplifier becomes one of the most important types of broadband amplifiers 无损耗反馈宽带放大器以其噪声低、线性好、宽频带以及结构简单的特点成为重要的宽带放大器类型。
Information technology - telecommunications and information exchange between systems - broadband private integrated services network - inter - exchange signalling protocol - signalling atm adaptation layer 信息技术.系统间通信和信息交换.宽频带私人综合服务网.内交换信号协议.信号atm适应层
