Fig. 1. Function diagram of integrated absorption-transmission electromagnetic window

Fig. 2. Structural and parameters of single-band integrated absorption-transmission electromagnetic window. (a) Schematic of single-band integrated absorption-transmission electromagnetic window; (b) fabricated sample; (c) reflection coefficient; (d) transmission coefficient

Fig. 3. Distributions of surface current and spatial magnetic field of absorber. (a) Distribution of surface current at f=2.86 GHz; (b) distribution of surface current at f=4.46 GHz; (c) distribution of spatial magnetic field at f=2.86 GHz; (d) distribution of spatial magnetic field at f=4.46 GHz

Fig. 4. Performance of structure at different incident angles and polarization angles. (a) Absorption as a function of incident angle; (b) transmission as a function of incident angle; (c) absorption as a function of polarization angle; (d) transmission as a function of polarization angle

Fig. 5. Positions of absorption peak and transmission peak are adjusted by changing structural parameter. (a) Absorption and transmission spectra as functions of r₃; (b) absorption and transmission spectra as functions of r₁

Fig. 6. Pyramid subunits constitute the structure and simulation of a unit. (a) Schematic of broadband-integrated absorption-transmission electromagnetic window; (b) simulation results of absorption and transmission under normal incidence; (c) simulation results of TE wave as functions of incident angle; (d) simulation results of TM wave as functions of incident angle