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A selection from Agilent’s “Ten Things You Should Know About MIMO” are presented in this paper, with the intention of giving the user an overview of the operation of MIMO technology and test methodology. Each item uses an example to highlight the impact on the radio system or associated test. A poster that summarizes all ten points is available from Agilent on request (order information can be found at the end of this paper).
In this paper, wafer scale packaging information is shown including factors that make it low cost. RF I/O design and tested performance for the wafer scale package are shown. After the discussion of the wafer scale package design, the design and performance of a broadband driver amplifier is described.
Re-segmentation effectively enables more flexibility in the LTE eNB scheduling of resources. Instead of rigidly maintaining constant resource constraints for re-sending data, the eNB can quickly and efficiently change resource grants to suit the radio conditions, thereby balancing the resource needs of all users of that eNB.
A new standard, Digital Video Broadcasting – Satellite Services to Handheld Devices (DVB-SH), has been proposed for accelerating the deployment of mobile TV in the next few years.
A theoretical analysis method on attenuation of the compact GaAs MMIC bandpass filter using the structure of a diagonally short-ended coupled-line with capacitive loading, which is a potential solution to achieve extremely miniaturized size, is given in this paper. Based on this model, the factors related to the insertion loss performance are investigated. The experimental verification shows good agreement between theory and experiment. The proposed scheme can be used in the design and optimization of this kind of new miniaturized bandpass filter.
A quantitative study by the Swiss Federal Office of Communications (OFCOM) reveals ultra-high performance microwave antennas like RFS Compact Line lead the way when it comes to controlling radio link interference and network densification.
Adaptive Coding and Modulation (ACM) was designed to help operators maximize spectrum usage and increase the capacity of their backhaul links over any given channel bandwidth, under any weather condition, at any link budget. This paper provides an introduction to ACM and offers a number of examples that show how the technology simplifies mobile network planning and helps operators achieve better results both in the field as well as on their balance sheets.
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