# Questions tagged [beamforming]

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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?
• 15
1 vote
56 views

### 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 ...
• 11
51 views

### 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 ...
65 views

### 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?
60 views

### 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 ...
38 views

### 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 ...
1 vote
113 views

### 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:...
• 113
1 vote
96 views

### 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 ...
• 105
63 views

### 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 ...
143 views

### 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 ...
• 139
174 views

### 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 \...
1 vote
60 views

### 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 ...
• 627
1 vote