Dengwei Zhu, Ruimin Zeng, Zetian Tang, Zhao Ding, Chen Yang. Design of Multiband Filter Based on Spoof Surface Plasmon Polaritons[J]. Laser & Optoelectronics Progress, 2020, 57(17): 172401
- Laser & Optoelectronics Progress
- Vol. 57, Issue 17, 172401 (2020)
Fig. 1. Dispersion curves of gradual slot unit structure
Fig. 2. Dispersion curves of gradual slot unit structure at different h
Fig. 3. Structure of filter. (a) Low-pass filter; (b) transition section; (c) coplanar waveguide section
Fig. 4. Simulated S-parameter curves of low-pass filter
Fig. 5. Structure of multiband filter
Fig. 6. Model of the equivalent circuit. (a) E-shaped resonator; (b) odd mode; (c) even mode
Fig. 7. Deformation model of even mode equivalent circuit
Fig. 8. Influence of La and Lb change on S21. (a) La; (b) Lb
Fig. 9. S-parameter curves of three-band filter
Fig. 10. S-parameter curves of dual-band filter
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Table 1. Structural parameters of low-pass filterunit: mm
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