Embracing Complexity: MIMO Over-the-Air Testing with the Reverberation Chamber
ثبت نشده
چکیده
This article describes a repeatable reference environment for over-the-air (OTA) testing of multiple input multiple output (MIMO) devices and why the reverberation chamber is uniquely suited to provide insight into MIMO device performance. The importance of reference environments and the characteristics of the reverberation chamber in the context of 4G wireless systems are reviewed. Statistically based measurements are described and compared with the line-of-sight solutions implemented in an anechoic chamber environment.
منابع مشابه
Overview of LTE MIMO OTA Throughput Testing in Reverberation Chambers
It is not possible to do direct tests to find the best LTE multi-antenna configuration for optimizing antenna diversity gain, antenna MIMO capacity or device throughput with the traditional antenna measurement method, i.e. an anechoic chamber. Of the two alternatives for making direct measurements, i.e. drive tests and the reverberation chamber, the reverberation chamber offers many advantages....
متن کاملExperimental Characterization of the Propagation Channel along a Very Large Virtual Array in a Reverberation Chamber
We show that the combined use of radio frequency absorbers and directive antennas can produce significant changes of the radio propagation channel properties along the positions of a virtual array inside a reverberation chamber. A multidimensional characterization of the channel was performed at 40 antenna positions with spacing of 0.233λ at 1 GHz. The average power, the Ricean K-factor, the co...
متن کاملTheory, Techniques and Validation of Over-the-Air Test Methods for Evaluating the Performance of MIMO User Equipment
Several over-the-air (OTA) test methods have been proposed to characterize the radiated performance of multiple input multiple output (MIMO) devices. Knowing that antenna gain and spatial correlation are important factors to system performance, it has become necessary to include OTA testing of MIMO antenna performance. This paper will discuss three predominant OTA test methods including the two...
متن کاملتحلیل آکوستیکی یک اتاق نیمه صامت با چینش متقاطع جاذب الیافی مکعب مستطیل
Introduction: The previous studies have used fibrous absorbents usually in the form of cone-shaped wedges for making anechoic and semi-anechoic chambers which their design and construction have been costly and difficult. The present study aimed to design a semi-anechoic chamber, using rectangular fibrous absorbents and also perform acoustic analysis for it. . Material and Method: In the presen...
متن کاملOverview of Antenna and Over The Air (OTA) Measurements in Reverberation Chambers
Antennas have traditionally been measured in anechoic chambers. An anechoic chamber is a suitable and necessary reference environment to measure large antennas that are used in a Line-Of-Sight (LOS) environment, but it is an unsuitable environment to measure devices with small antennas. Devices with small antennas are normally used in a Non-LOS environment, which is typically characterised by a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010