TY - GEN
T1 - Design of Miniaturized Broadband Quadrature Couplers Using Silicon-Based 3-D Integration Process
AU - Wang, Yining
AU - Wang, Qingyuan
AU - Liu, Huanyao
AU - Li, Bo
AU - Lin, Feng
AU - Sun, Houjun
N1 - Publisher Copyright:
© 2026 IEEE.
PY - 2026
Y1 - 2026
N2 - This paper presents a miniaturized broadband quadrature coupler using silicon-based 3-D integration process. The coupler consists of two Lange couplers cascaded with two T-networks. The Lange couplers are used to extend matching bandwidth. T-networks are designed to realize good amplitude and phase imbalance performances. The coupler size is significantly reduced by using the silicon-based 3-D integration process. Within 0.8~1.6 GHz, the simulated maximum insertion loss is 1.3 dB, and the return loss and isolation are better than 21.4 dB and 20.5 dB, respectively. In addition, the amplitude imbalance and phase imbalance are less than 0.37 dB and 4.1°, respectively. Furthermore, the coupler size is 0.030λ0×0.032λ0×0.002λ0, where λ0 is the free space wavelength at the center frequency.
AB - This paper presents a miniaturized broadband quadrature coupler using silicon-based 3-D integration process. The coupler consists of two Lange couplers cascaded with two T-networks. The Lange couplers are used to extend matching bandwidth. T-networks are designed to realize good amplitude and phase imbalance performances. The coupler size is significantly reduced by using the silicon-based 3-D integration process. Within 0.8~1.6 GHz, the simulated maximum insertion loss is 1.3 dB, and the return loss and isolation are better than 21.4 dB and 20.5 dB, respectively. In addition, the amplitude imbalance and phase imbalance are less than 0.37 dB and 4.1°, respectively. Furthermore, the coupler size is 0.030λ0×0.032λ0×0.002λ0, where λ0 is the free space wavelength at the center frequency.
KW - broadband
KW - Lange coupler
KW - miniaturization
KW - silicon-based 3-D integration
UR - https://www.scopus.com/pages/publications/105050597984
U2 - 10.1109/CSRSWTC71154.2026.11669479
DO - 10.1109/CSRSWTC71154.2026.11669479
M3 - Conference contribution
AN - SCOPUS:105050597984
T3 - CSRSWTC 2026 - 2026 Cross Strait Radio Science and Wireless Technology Conference, Proceedings
BT - CSRSWTC 2026 - 2026 Cross Strait Radio Science and Wireless Technology Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2026 Cross Strait Radio Science and Wireless Technology Conference, CSRSWTC 2026
Y2 - 10 July 2026 through 12 July 2026
ER -