Improvement of an octave bandwidth bowtie antenna design based on the analysis of a MIMO efficiency metric in random-LOS
Journal article, 2017
A multiple-input multiple-output (MIMO) efficiency metric based on the probability of detection (PoD) of data bitstreams is used to improve the design of a self-grounded dual-polarized wideband bowtie antenna over an octave bandwidth. The analysis is based on the ideal digital threshold receiver model for the Zero-Forcing algorithm. The random line-of-sight (Random-LOS) channel model with two orthogonal linearly polarized waves coming from the same angle-of-arrival is considered in the evaluation. The MIMO efficiency performance is presented along with the reflection coefficient, the directivity and the radiation patterns of the antennas. Corresponding spatial throughput coverage patterns based on 2-bitstream MIMO efficiency evaluated at the 95% PoD level are also provided. The loss of orthogonality as well as the power imbalance of the 2-bitstreams has been identified as the main reasons to MIMO efficiency performance degradation in Random-LOS.
random-LOS
MIMO
self-grounded bowtie
zero-forcing
probability of detection (PoD)
Author
Sadegh Mansouri Moghaddam
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
Andres Alayon Glazunov
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
Per-Simon Kildal
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
Jian Yang
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
M. Gustafsson
Huawei Technologies
Microwave and Optical Technology Letters
0895-2477 (ISSN) 1098-2760 (eISSN)
Vol. 59 6 1229-1233Subject Categories (SSIF 2011)
Atom and Molecular Physics and Optics
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1002/mop.30512