5G array antenna substrate for electromagnetic beam splitting via cobalt-substituted zinc molybdate low temperature co-fired ceramics

Zn2+-Enhanced Lithium Magnesium Molybdate Ultralow Temperature Cofired Ceramics for Terahertz Wavefront Modulation Applications

“…Compared with the pure-phase LMMO ceramic, the Q × f value is effectively enhanced. Moreover, as a parameter reflecting the thermal stability of the material, the variation of the τ f values depends on the lattice distortion (δ) produced when Zn 2+ is introduced, and the calculation details are given in eqs S4 and S5 in the Supporting Information. , As shown in Figure e, the τ f values of LMZMO ceramics follow the same trend as that of δ. With increasing Zn 2+ substitution x , the τ f value decreases overall.…”

(Ni1/3Nb2/3)4+-Improved High-K Ba3Ti4Nb4O21 Microwave Dielectric Ceramics for Miniaturized All-Ceramic Radomes with 5G Beam-Splitting Function

“…The dimensions of this radome are 400 mm × 400 mm × 8 mm, which is much smaller than those of other past designs operating at 5 GHz (640 mm × 640 mm × 4.6 mm). 27 Compared to other radomes designed for other work utilizing low dielectric ceramics, the size of this radome has been reduced by 3/7. In order to verify the beam splitting function, the near-field phase and far-field of plane-wave incidence at 5 GHz are calculated, as shown in Figure 6(g,h).…”

“…An LP beam is split into an LCP beam and an RCP beam with a certain deflection angle. The equation for calculating the deflection angle is shown below: , θ r ± = sin − 1 nobreak0em.25em⁡ n i nobreak0em0.1em⁡ sin nobreak0em0.25em⁡ θ i + 1 k normalo ( ± d φ d x ) n normalr where n i and n r are the incident and reflected refractive indices, respectively, and θ i = 0, k 0 , and ± dφ/d x are the angle of incidence, wavevector, and phase shift, respectively. Eight different structural units are sequentially arranged along the x -direction to form a miniaturized radome according to the design principle.…”

Enhancement of microwave dielectric behavior by substitution of W6+ for Mo6+ in Li2Mg1.91Na0.18Mo3O12 ceramics

“…This technology requires a sintering temperature of less than 960°C [6][7][8]. The LTCC technology has been playing a pivotal role in the exploration of ceramics, representing the future trend of miniaturization and integration of ceramicbased devices such as antennas, filters, and oscillators [9][10][11].…”