2013年3月22日,慕尼黑 - 罗德与施瓦茨公司提供业界首个能够测试LTE-A下行载波聚合射频一致性测试用例的测试系统,在巴塞罗那世界移动通信大会上,使用TS8980射频测试系 … [Read more...]
R&S成为杜比认证测试设备提供方
专用测试设备及测试测量技术,确保为杜比认证需求方提供完美的报告和分析 2013年2月5日,马里兰州的哥伦比亚 - 音频、视频及无线通信测量设备的生产和制造领导者,罗德与施瓦茨(R&S)公司宣布: R&S公司与杜比实验室合作,正式为杜比技术以及杜比认证需求方推出音频测试技术方案。 R&S公司通过更新固件全面升级了音频分析仪R&S UPP和R&S UPV的平台,使对杜比认证有需求的客户可以进行一致性认证自测。新平台还简化了配置管理, 而且无需额外费用。 杜比协议规定:取得杜比认证的新产品推向市场之前,都必须通过综合的一致性认证测试。 R&S公司与Dolby®的合作不仅能够简化测试流程,还能显著缩短杜比认证测试时间。 “测试工程师可以使用R&S公司所设计的软件包线性的完成整个杜比测试流程。” R&S公司的产品经理Klaus … [Read more...]
Association for International Broadcasting Alleges China Has Increased Jamming of English-Language Radio Programs
Following last month’s accusation from the British Broadcasting Corp. (BBC) suggesting that China was blocking English-language shortwave broadcasts of the organization’s World Service radio programs, the Association for International Broadcasting (AIB) has also accused China of deliberately interfering with other English-language radio programs, including Radio Australia and … [Read more...]
BBC Accuses China of Jamming English-Language Shortwave Broadcasts
British broadcaster BBC has accused China of blocking its English-language shortwave broadcasts of World Service radio programs. Though the corporation admitted that it was not possible to determine the source of the jamming, it suggested that the “extensive and coordinated efforts are indicative of a well-resourced country such as China.” According to the BBC, though the … [Read more...]
R&S公司推出世界上首款频率范围高达67GHz的步进衰减器
2013年1月28日 ,慕尼黑 - 罗德与施瓦茨公司推出的R&S RSC系列可切换、步进式衰减器是世界上首款以0.1dB可调步进且频率高达67GHz的高精度、高稳定性的衰减器。 罗德与施瓦茨公司在慕尼黑推出4款新型号R&S RSC系列步进衰减器主机和2款外部衰减器。衰减器主机可以使用内部步进衰减器,也可以不使用。内部步进衰减器分为3种型号,频率范围可以达到18GHz,2个外部步进衰减器频率范围可以高达67GHz。每一个衰减器主机可以同时控制4个外部步进衰减器。 R&S RSC系列步进衰减器允许客户手动或远程调节实现信号功率的步进衰减控制。一个典型的应用为校准测量仪器,尤其是接收机的线性测试。 R&S … [Read more...]
Optenni公司与EMSS达成全球代理商协议
2013年1月23日,Optenni公司宣布,就公司旗下天线匹配电路设计软件Optenni Lab的全球代理与EMSS集团(三维电磁场仿真软件FEKO的母公司)达成协议,未来Optenni Lab将通过FEKO的全球技术和营销网络进行销售。这次的合作,对于双方来说,不仅能够确保客户得到更好的全球技术支持,还能够通过双方的产品集成更好地满足客户的技术需求。 在天线设计工作中,确保技术指标的修改能够满足天线效率和带宽的要求,对于工程师来说是一项颇具挑战性的工作。而相比通过修改天线物理结构,用天线匹配电路设计能够更快捷地满足天线效率和带宽的性能要求。传统的匹配网络设计方法要求设计工程师具备匹配网络领域的专业知识以及电路仿真工具。 Optenni … [Read more...]
New “DC Invisibility Cloak” Could Be Used to Disguise Military Vehicles
Researchers in China have developed a “DC invisibility cloak” to hide electrical and magnetic signals that are generated by direct current. The new invisibility cloak has the potential to disguise infrared and magnetic signatures given off by military weapons, aircraft and ground vehicles. Comprised of a network of resistors that assist in “bending” the electromagnetic waves, … [Read more...]
China Considering Development of Autonomous Electromagnetic Bus
The Chinese government is investigating the possibility of expanding Shanghai’s s transportation system with the introduction of a robotic electromagnetic bus. According to the Chinese government, the electromagnetic bus will be equipped with a variety of sensors designed to keep the bus on the road and prevent any collisions. Magnetic units will be buried under specific roads … [Read more...]
New EMC Vehicle Testing Facility Opens in Taiwan
An electromagnetic compatibility testing facility for vehicles has been opened at the Automotive Research and Testing Center in Lukang, Changhua County, Taiwan. According to the Republic of China (ROC) Ministry of Economic Affairs, the facility is capable of providing testing for components, systems and entire vehicles. The facility is equipped with a large anechoic chamber, a … [Read more...]
可形成局域网连接并可用于充电的桌子
来自东京大学的研究人员在日本举行的日本高新技术博览会(Ceatec)电子展上展出了一种桌子,这种桌子能够为置于其上面的装置提供无线充电并在装置之间形成一个局域网。这一概念源自于支持无线专网的想法,这种网络比当前的Wi-Fi网络更安全、更为局域化,同时也不需要网线。 这种桌子由小网面板组成的薄板制成,这种小网面板在两个维度内含有电磁波,并携带一个较小的电流。东京大学的一名博士生Akihito … [Read more...]