TY - JOUR
T1 - Partial Reflective Decoupling Superstrate for Dual-Polarized Antennas Application Considering Power Combining Effects
AU - Guo, Jiayin
AU - Liu, Feng
AU - Zhao, Luyu
AU - Huang, Guan Long
AU - Lin, Wei
AU - Yin, Yingzeng
N1 - Funding Information:
This work was supported in part by the National Key Research and Development Program of China under Grant 2019YFF0216603 and in part by the Key Research and Development Program of Shaanxi under Grant 2020ZDLGY15-03.
Publisher Copyright:
© 1963-2012 IEEE.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - A decoupling design based on metasurface partial reflective decoupling superstrate (M-PRDS) for closely arranged dual-polarized antennas with power combiners is proposed in this communication. Compared with the coupling between each separate antenna element in the array, the introduction of the power combiners makes the mutual coupling between antenna subarrays rearranged and, consequently, more complicated. Therefore, the proposed M-PRDS technology is required to consider the abovementioned power combining effect. The combined mutual couplings are analytically calculated in the first place, and then, a dielectric PRDS (D-PRDS) with given permittivity and height is introduced to create a proper partial reflection for the combined couplings. Finally, an M-PRDS of periodic nonresonate structures with the equivalent electromagnetic parameters as the designed D-PRDS is utilized in this work using simple printed circuit board technology, which not only can achieve the same decoupling effect as the D-PRDS but also possesses the low cost, lightweight, and easy fabrication features. Measurement results of the fabricated prototype composed of 4 × 4 dual-polarized antennas with eight power combiners confirm that all types of mutual couplings can be suppressed to below-25 dB in the operating frequency band (1.7-2.3 GHz).
AB - A decoupling design based on metasurface partial reflective decoupling superstrate (M-PRDS) for closely arranged dual-polarized antennas with power combiners is proposed in this communication. Compared with the coupling between each separate antenna element in the array, the introduction of the power combiners makes the mutual coupling between antenna subarrays rearranged and, consequently, more complicated. Therefore, the proposed M-PRDS technology is required to consider the abovementioned power combining effect. The combined mutual couplings are analytically calculated in the first place, and then, a dielectric PRDS (D-PRDS) with given permittivity and height is introduced to create a proper partial reflection for the combined couplings. Finally, an M-PRDS of periodic nonresonate structures with the equivalent electromagnetic parameters as the designed D-PRDS is utilized in this work using simple printed circuit board technology, which not only can achieve the same decoupling effect as the D-PRDS but also possesses the low cost, lightweight, and easy fabrication features. Measurement results of the fabricated prototype composed of 4 × 4 dual-polarized antennas with eight power combiners confirm that all types of mutual couplings can be suppressed to below-25 dB in the operating frequency band (1.7-2.3 GHz).
KW - Antenna arrays
KW - Antenna radiation patterns
KW - Antennas
KW - Couplings
KW - Decoupling
KW - dual-polarized antenna
KW - multiple-input-multiple-output (MIMO)
KW - Mutual coupling
KW - mutual coupling reduction
KW - partial reflective decoupling superstrate (PRDS)
KW - Power combiners
KW - Substrates
UR - http://www.scopus.com/inward/record.url?scp=85131712562&partnerID=8YFLogxK
U2 - 10.1109/TAP.2022.3177513
DO - 10.1109/TAP.2022.3177513
M3 - Journal article
AN - SCOPUS:85131712562
SN - 0018-926X
VL - 70
SP - 9855
EP - 9860
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 10
M1 - 9785514
ER -