TY - JOUR
T1 - Substrate integrated coaxial line design for mmWave antenna with multilayer configuration
AU - Luo, Yong
AU - Shen, Ya
AU - Cai, Xiang
AU - Qian, Feng
AU - Xu, Shugong
AU - Cui, Hengrong
AU - Yang, Guangli
N1 - Publisher Copyright:
© 2022 Wiley Periodicals LLC.
PY - 2022/5
Y1 - 2022/5
N2 - In the 5G communication utilizing millimeter-wave (mmWave) band, multilayer configuration is popular for mmWave antenna with module-level integration and high-density design. However, multilayer construction adds several substrate layers and metallic ground layers to RF signal paths, which induces extra capacitances and inductances to the original antenna, thereby deteriorating impedance matching, and distorting radiation patterns. In this paper, we investigate the influence of multilayer structure on antenna performances, and apply substrate integrated coaxial line (SICL) design to eliminate these interferences from multilayer configuration. Equivalent circuit model of the multilayer configuration with SICL is presented and verified by simulations. A mmWave antenna unit and the 1 × 4 array in multilayer configuration with SICL design are measured. Experiments show that SICL design enables impedance matching and radiation patterns to be maintained without distortions when applying multiple layers to the mmWave antenna, validating this method. It can be applied to 5G mmWave antennas that desire multilayer construction.
AB - In the 5G communication utilizing millimeter-wave (mmWave) band, multilayer configuration is popular for mmWave antenna with module-level integration and high-density design. However, multilayer construction adds several substrate layers and metallic ground layers to RF signal paths, which induces extra capacitances and inductances to the original antenna, thereby deteriorating impedance matching, and distorting radiation patterns. In this paper, we investigate the influence of multilayer structure on antenna performances, and apply substrate integrated coaxial line (SICL) design to eliminate these interferences from multilayer configuration. Equivalent circuit model of the multilayer configuration with SICL is presented and verified by simulations. A mmWave antenna unit and the 1 × 4 array in multilayer configuration with SICL design are measured. Experiments show that SICL design enables impedance matching and radiation patterns to be maintained without distortions when applying multiple layers to the mmWave antenna, validating this method. It can be applied to 5G mmWave antennas that desire multilayer construction.
KW - array antenna
KW - electromagnetic compatibility
KW - millimeter-wave antenna
KW - multilayer interference
KW - substrate integrated coaxial line
UR - http://www.scopus.com/inward/record.url?scp=85124468851&partnerID=8YFLogxK
U2 - 10.1002/mmce.23090
DO - 10.1002/mmce.23090
M3 - Article
AN - SCOPUS:85124468851
SN - 1096-4290
VL - 32
JO - International Journal of RF and Microwave Computer-Aided Engineering
JF - International Journal of RF and Microwave Computer-Aided Engineering
IS - 5
M1 - e23090
ER -