Questions tagged [beamforming]
The beamforming tag has no usage guidance.
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About mobile user beamforming
I know that base station can generate beamforming vector (precoding) by channel state information.
If user have multi antenna, mobile user can also do beamforming?
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How to utilize receive spacial beamforming to allocate beams to different transmitter?
Assume there are 2 Base Stations (BSs) each is equipped with \$M\$ antennas serving 1 User Terminal (UT) simultaneously. Say if the UT has 4\$\times\$4 Uniform Planar antenna array, which means it can ...
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Is an antenna array with a tilted (rotated) antenna element always less optimal than a perfectly aligned antenna array?
Suppose I have a traditional linear antenna array. My element factor follows a cosine shape between 0-180 degrees. The relationship between my theoretical total antenna array pattern and the element ...
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Calculating antenna beam footprint from frequency
I need to compute a beam footprint, but I know only the frequency of the beam.
How can I compute the footptint?
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Uniform circular array (UCA) beamforming using FFT
As far as I know, conventional beamforming using FFT can return a range-angle map. However, this only works with a uniform linear array (ULA).
I'm wondering if the same approach works for UCA. I guess ...
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How to model MIMO channel matrix for numerical results
I am willing to include the channel matrix in my analytical model (which only includes pathloss and antenna gains). But from what I have seen, channel matrix can't be used to produce numerical results ...
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Do beam-forming devices expect a particular antenna configuration?
Do beam-forming devices expect a particular antenna configuration? For instance, do they expect the antennas to be a certain distance from one another? Or parallel to one another? Etc.
Background Info:...
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What is the relation between beamforming design and user scheduling in massive MIMO systems?
This may seem like a basic question, but since I am a nonexpert trying to do some collaboration with people working in this field, I need to understand the two concepts.
As I understand, beamforming ...
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Phased array receiver circular polarization
In a phased array system, what will have to change in a receiver's architecture if it needs to work for both linear and circular polarization?
I saw in one article it is said "Supports automatic ...
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Hardware implementations for a low-cost ADC array project
I wonder what would be the best hardware platform or architecture for implementing and building a lowish-cost system to sample audio capture over a large array of microphones or sensors? say, 300 or ...
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Beam Steering range of a phased array antenna system
What is the beam steering range of a phased array dependent on? For example, if I use an antenna array of Nx1, with a phase shifter resolution of \$\frac{2\pi}{k}\$ and the antenna elements spaced at \...
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Vertically oriented beams using antenna arrays
Referring to the above picture, can an antenna array mounted on Node A direct beams towards Node B and Node E, without the need for an antenna rotator (or manually orienting the antenna array towards ...
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How to tell the polarization (horizontal or vertical) of a microstrip linear array antenna just by inspection
I know that a linear array of microstrip patches can be either horizontal or vertical depending on its orientation.
Does the feed (input port of the array) determine the direction of polarization?
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bearing ambiguity resolve (direction finding) for multiple sources
I am working on wideband direction finding algorithms for passive sensors.
I started with Music algorithm. For practical reasons, the spacing can not be maintained lambda/2. For greater antenna ...
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