TY - JOUR
T1 - The correct application of total active reflection coefficient to evaluate MIMO antenna systems and its generalization to N ports
AU - Fritz-Andrade, Erik
AU - Jardon-Aguilar, Hildeberto
AU - Tirado-Mendez, Jose A.
N1 - Publisher Copyright:
© 2019 Wiley Periodicals, Inc.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Several papers published by prestigious Journals on Antennas and Microwave Techniques have disseminated misconceptions about total active reflection coefficient (TARC), a meaningful metric to characterize multiple-input multiple-output antenna arrays, and the misapprehension has been spread over the years. In this article, an extrapolation to calculate TARC for N-antennas systems is derived and applied to published results for illustration purposes. Moreover, the inaccurate and correct TARC equations are put in context by means of its physic and mathematical insight, demonstrating the divergence of results when the interport RF isolation is comparable or higher than the port matching. The importance of assessing multiantenna systems using TARC is explained.
AB - Several papers published by prestigious Journals on Antennas and Microwave Techniques have disseminated misconceptions about total active reflection coefficient (TARC), a meaningful metric to characterize multiple-input multiple-output antenna arrays, and the misapprehension has been spread over the years. In this article, an extrapolation to calculate TARC for N-antennas systems is derived and applied to published results for illustration purposes. Moreover, the inaccurate and correct TARC equations are put in context by means of its physic and mathematical insight, demonstrating the divergence of results when the interport RF isolation is comparable or higher than the port matching. The importance of assessing multiantenna systems using TARC is explained.
KW - MIMO antennas
KW - electromagnetic measurements
KW - microwave circuits
KW - millimeter-wave circuits
KW - mutual coupling
UR - http://www.scopus.com/inward/record.url?scp=85077875894&partnerID=8YFLogxK
U2 - 10.1002/mmce.22113
DO - 10.1002/mmce.22113
M3 - Artículo de revisión
SN - 1096-4290
VL - 30
JO - International Journal of RF and Microwave Computer-Aided Engineering
JF - International Journal of RF and Microwave Computer-Aided Engineering
IS - 4
M1 - e22113
ER -