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describe specific measurements with the chamber.

describes all instrument functions.

r&s®dst200 rf diagnostic chamberrf specifications frequency range: 400 mhz to 18 ghz shielding effectiveness (according to insertion loss method) 400 mhz to 700 mhz: > 95 db (meas.) 700 mhz to 3 ghz: > 110 db 3 ghz to 6 ghz: > 100 db 6 ghz to 18 ghz: > 75 db (meas.) power rating (power delivered into test space): < 50 w

the r&s®dst200 rf diagnostic chamber is the ideal environment for rf analysis during development. it supports a wide range of radiated test applications for wireless devices and fits on any r&d lab bench, where it can be used at all times during the product design and optimization phase. the r&s®dst200 effectively assists in achieving high first-time pass rates during final type approval, which saves time and money.

users will especially like the excellent correlation of results achieved with the r&s® dst200 with those obtained with larger ota test chambers. an automated 3d positioner is now available for the r&s® dst200 rf diagnostic chamber. this opens the door to automated ota and rse measurements in r&d and quality assurance.

现代移动电话能够同时支持蜂窝及非蜂窝无线通信标准。 但这也意味着单个设备内的子系统在操作时必须极为接近（设备内共存）。 产生的相互泄漏有时候可能引起极大的干扰。该应用指南使用初步理论分析并且展示了可以如何测量设备内共存的问题。如需获取德文版本，请访问 http://www.rohde-schwarz.de/appnote/1ma255。

lte user equipment (ue) receiver performance has significant impact to cellular radio network coverage and capacity. it determines the maximum data throughput across the air interface between the lte base station (enb, evolved node b) and the mobile network subscriber ue, thus it determines the total capacity across the air interface. therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.this paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (ota) measurements.

5g networks will need to offer more capacity and flexibility while lowering the operational expenses of the system. two new technologies can simultaneously address both the increase in capacity and the increase in energy efficiency: virtualization & massive mimo. this white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air (ota) test methods, which result from applying massive mimo antenna technology.this white papers complements the "millimeter-wave beamforming: antenna array design choices & characterization" white paper (1ma276) from rohde & schwarz, which introduces fundamental theory behind beamforming antennas and provides calculation methods for radiation patterns, a number of simulation results as well as some real world measurement results for small linear arrays.

the new r&s®dst200 rf diagnostic chamber can make this difficult path much smoother. it allows developers to perform a wide variety of radiated tests and receiver sensitivity measurements on wireless devices (e. g. mobile phones) – and it is available directly on the lab bench. 罗德与施瓦茨文章相关新闻

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