TY - GEN
T1 - Interaction Suppression Technique for High-Density Antenna Arrays for mm-Wave 5G MIMO Systems
AU - Alibakhshikenari, Mohammad
AU - Virdee, Bal S.
AU - Althuwayb, Ayman A.
AU - Falcone, Francisco
AU - Limiti, Ernesto
N1 - Publisher Copyright:
© 2021 EurAAP.
PY - 2021/3/22
Y1 - 2021/3/22
N2 - This paper presents the feasibility study of applying a combination of suppression techniques to improve isolation between the radiation elements in high-density antenna arrays and thereby improve the arrays impedance bandwidth and radiation performance. High isolation between adjacent radiation elements was achieved by embedding a crisscrossed decoupling structure comprising slotted microstrip-lines and locating in the ground-plane under each slot a dielectric ring. The proposed periodic array behaves as artificial magnetic conductor (AMC) surfaces as incident waves in the substrate are fully reflected with a near zero degrees reflection phase. The proposed technique suppresses surface-wave propagation. Proof of concept was verified by applying the technique to a 2×4 linear array of triangular radiation patches designed to operate between 30-35 GHz. The array was implemented on a standard the Rogers RT 5880 substrate. Dimensions of the array are 40×20×0.8 mm3. Measurement confirm improvement is the array's impedance bandwidth, fractional bandwidth, average isolation, radiation gain, and efficiency by 2 GHz, 6.15%, >10 dB, 6.6 dBi, and 29%. The array operates across 30-35GHz with average isolation between its radiation elements better than 23 dB, average gain and efficiency of 12 dBi and 85%, respectively. The technique can be applied to mm-Wave 5G MIMO systems.
AB - This paper presents the feasibility study of applying a combination of suppression techniques to improve isolation between the radiation elements in high-density antenna arrays and thereby improve the arrays impedance bandwidth and radiation performance. High isolation between adjacent radiation elements was achieved by embedding a crisscrossed decoupling structure comprising slotted microstrip-lines and locating in the ground-plane under each slot a dielectric ring. The proposed periodic array behaves as artificial magnetic conductor (AMC) surfaces as incident waves in the substrate are fully reflected with a near zero degrees reflection phase. The proposed technique suppresses surface-wave propagation. Proof of concept was verified by applying the technique to a 2×4 linear array of triangular radiation patches designed to operate between 30-35 GHz. The array was implemented on a standard the Rogers RT 5880 substrate. Dimensions of the array are 40×20×0.8 mm3. Measurement confirm improvement is the array's impedance bandwidth, fractional bandwidth, average isolation, radiation gain, and efficiency by 2 GHz, 6.15%, >10 dB, 6.6 dBi, and 29%. The array operates across 30-35GHz with average isolation between its radiation elements better than 23 dB, average gain and efficiency of 12 dBi and 85%, respectively. The technique can be applied to mm-Wave 5G MIMO systems.
KW - 5G systems
KW - Antenna array
KW - artificial magnetic conductor (AMC)
KW - decoupling
KW - high isolation
KW - interaction suppression techniques
KW - millimeter-waves
KW - multiple-input multiple-output (MIMO) antenna systems
UR - https://www.scopus.com/pages/publications/85105465231
U2 - 10.23919/EuCAP51087.2021.9411296
DO - 10.23919/EuCAP51087.2021.9411296
M3 - Conference Publication
AN - SCOPUS:85105465231
T3 - 15th European Conference on Antennas and Propagation, EuCAP 2021
BT - 15th European Conference on Antennas and Propagation, EuCAP 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th European Conference on Antennas and Propagation, EuCAP 2021
Y2 - 22 March 2021 through 26 March 2021
ER -