TY - GEN
T1 - Closely-Spaced, Wideband, High-Isolation Microstrip Antennas Using Multiple-Decoupling Method
AU - Wan, Zhengyuan
AU - He, Yijing
AU - Sun, Houjun
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - A multiple-decoupling method is proposed for closely-spaced, wideband, and high-isolation microstrip antennas. In this approach, multiple-decoupling structures are introduced to gradually improve the port isolation between two wideband antennas. Specifically, the capacitively loaded pins are uniformly distributed across two diagonal lines of the shared patch radiator, forming a capacitively loaded fence (first-stage decoupling structure). To further enhance port isolation, a pair of quarter-wavelength open-ended slots are etched on the non-radiating edge of the microstrip antenna to constitute the second-stage decoupler. With only sacrificing 3% of impedance bandwidth, the maximum isolation is increased from 18 dB to 53 dB. After fabrication and measurement, the proposed antenna almost covers Wi-Fi 6 (5.15-5.83 GHz) and Wi-Fi 6E (5.92-7.125 GHz) with an impedance bandwidth of 5.39-7.57 GHz (33.6%) and in-band isolation better than 23.3 dB. With the merits of close spacing, wideband, and high isolation, the proposed antenna pair possesses the potential for Wi-Fi 6 and Wi-Fi 6E applications.
AB - A multiple-decoupling method is proposed for closely-spaced, wideband, and high-isolation microstrip antennas. In this approach, multiple-decoupling structures are introduced to gradually improve the port isolation between two wideband antennas. Specifically, the capacitively loaded pins are uniformly distributed across two diagonal lines of the shared patch radiator, forming a capacitively loaded fence (first-stage decoupling structure). To further enhance port isolation, a pair of quarter-wavelength open-ended slots are etched on the non-radiating edge of the microstrip antenna to constitute the second-stage decoupler. With only sacrificing 3% of impedance bandwidth, the maximum isolation is increased from 18 dB to 53 dB. After fabrication and measurement, the proposed antenna almost covers Wi-Fi 6 (5.15-5.83 GHz) and Wi-Fi 6E (5.92-7.125 GHz) with an impedance bandwidth of 5.39-7.57 GHz (33.6%) and in-band isolation better than 23.3 dB. With the merits of close spacing, wideband, and high isolation, the proposed antenna pair possesses the potential for Wi-Fi 6 and Wi-Fi 6E applications.
KW - Multiple-decoupling method
KW - Wi-Fi 6 and Wi-Fi 6E applications
KW - capacitively loaded fence
KW - multiple-decoupling structures
UR - http://www.scopus.com/inward/record.url?scp=85186527339&partnerID=8YFLogxK
U2 - 10.1109/CSRSWTC60855.2023.10426999
DO - 10.1109/CSRSWTC60855.2023.10426999
M3 - Conference contribution
AN - SCOPUS:85186527339
T3 - Proceedings - 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023
BT - Proceedings - 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2023
Y2 - 10 November 2023 through 13 November 2023
ER -