Questions tagged [beamforming]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
48 views

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?
user avatar
  • 15
1 vote
0 answers
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 ...
user avatar
  • 11
0 votes
1 answer
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 ...
user avatar
0 votes
1 answer
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?
user avatar
0 votes
0 answers
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 ...
user avatar
  • 1
0 votes
0 answers
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 ...
user avatar
1 vote
3 answers
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:...
user avatar
1 vote
2 answers
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 ...
user avatar
  • 105
0 votes
1 answer
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 ...
user avatar
0 votes
2 answers
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 ...
user avatar
  • 139
7 votes
1 answer
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 \...
user avatar
1 vote
1 answer
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 ...
user avatar
  • 627
1 vote
1 answer
1k views

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?
user avatar
  • 11
3 votes
0 answers
187 views

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 ...
user avatar