Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Feasibility of Multi-Mode Antennas in UWB and IoT Applications
  below 10 GHz   While on the one hand 5G and B5G networks are challenged by ultra-high data
rates in wideband applications like 100+ Gbps wireless Internet access, on the
other hand they are expected to support reliable low-latency Internet of Things
(IoT) applications with ultra-high connectivity. These conflicting challenges
are addressed in a system proposal dealing with both extremes. In contrast to
most recent publications, focus is on the frequency domain below 10~GHz.
Towards this goal, multi-mode antenna technology is used and different
realizations, offering up to eight uncorrelated ports per radiator element, are
studied. Possible baseband architectures tailored to multi-mode antennas are
discussed, enabling different options regarding precoding and beamforming.

12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph