Zhuang Ma, Dongfang Zhou, Dewei Zhang, Yi Zhang, Dalong Lü. Dual-branch loaded L-band broadband high isolation directional coupler[J]. High Power Laser and Particle Beams, 2022, 34(4): 043002
- High Power Laser and Particle Beams
- Vol. 34, Issue 4, 043002 (2022)
Fig. 1. Structure of the directional coupler designed in this paper
Fig. 2. Simulation results of the directional coupler in this paper
Fig. 3. Simulation results without DGS structure
Fig. 4. Simulation results with or without DGS structure isolation
Fig. 5. Simulation results of single branch + DGS structure
Fig. 6. Surface current distribution of the designed directional coupler
Fig. 7. Influence of the distance between two branches on the isolation
Fig. 8. The physical diagram of the directional coupler proposed in this paper
Fig. 9. Comparison of simulated and measured S parameters
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