TY - JOUR
T1 - Millimeter-Wave Dual-Band Filtering Patch Antenna and MIMO Array Using Multinull Resonator
AU - Yin, Xu
AU - Hu, Peng Fei
AU - Leung, Kwok Wa
AU - Pan, Yong Mei
AU - Yang, Nan
AU - Lu, Kai
PY - 2024/9
Y1 - 2024/9
N2 - A compact millimeter-wave (mm-wave) dual-band filtering patch antenna is presented. It is fed by a new multinull resonator, composed of a single-layer substrate integrated waveguide (SIW) cavity-backed slot. This multinull resonator can produce two resonant modes and three radiation nulls. With the load of a radiating patch, another radiation null can be generated between the two operating bands. In addition, the radiating patch produces two patch modes by introducing an H-shaped slot and four shorting pins. Therefore, a second-order bandpass filtering response is obtained for each operating band. Owing to this new multinull resonator, two controllable radiation nulls are realized beside each band, showing high-frequency selectivity and an out-of-band suppression level of more than 18 dB. The antenna prototype, with only two substrate layers, has antenna gains of 8 and 7.5 dBi in the 28- and 39-GHz bands. Furthermore, the dual-band filtering patch antenna is extended to a 2times 2 multiple input/multiple output (MIMO) antenna. With the aid of π-/L-shaped parasitic strips, the isolation of the E-plane MIMO is enhanced by 5 dB. The isolations between any two-antenna elements are higher than 20 dB for the two passbands. © 2024 IEEE.
AB - A compact millimeter-wave (mm-wave) dual-band filtering patch antenna is presented. It is fed by a new multinull resonator, composed of a single-layer substrate integrated waveguide (SIW) cavity-backed slot. This multinull resonator can produce two resonant modes and three radiation nulls. With the load of a radiating patch, another radiation null can be generated between the two operating bands. In addition, the radiating patch produces two patch modes by introducing an H-shaped slot and four shorting pins. Therefore, a second-order bandpass filtering response is obtained for each operating band. Owing to this new multinull resonator, two controllable radiation nulls are realized beside each band, showing high-frequency selectivity and an out-of-band suppression level of more than 18 dB. The antenna prototype, with only two substrate layers, has antenna gains of 8 and 7.5 dBi in the 28- and 39-GHz bands. Furthermore, the dual-band filtering patch antenna is extended to a 2times 2 multiple input/multiple output (MIMO) antenna. With the aid of π-/L-shaped parasitic strips, the isolation of the E-plane MIMO is enhanced by 5 dB. The isolations between any two-antenna elements are higher than 20 dB for the two passbands. © 2024 IEEE.
KW - 5G millimeter wave (mm-wave)
KW - dual-band
KW - filtering antenna
KW - multiple input/multiple output (MIMO)
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85199539361&origin=recordpage
U2 - 10.1109/TAP.2024.3430814
DO - 10.1109/TAP.2024.3430814
M3 - RGC 21 - Publication in refereed journal
SN - 0018-926X
VL - 72
SP - 6897
EP - 6907
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 9
ER -