Left-right hand circular polarization reconfigurable implantable antenna and reconfigurable method
An implantable, circularly polarized technology, applied in the field of biomedical telemetry, can solve the problems of circular polarization mismatch, user's body influence, large occupied volume, etc., and achieve the effect of large impedance bandwidth and reliable transmission distance
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Embodiment 1
[0036] Such as Figure 1-Figure 2 As shown, a reconfigurable implantable antenna with left and right circular polarization for mobile medical care includes an upper dielectric substrate 2B and a lower dielectric substrate 2A, both dielectric substrates use 0.635mm Rogers 3010 substrates, and the lower dielectric substrate An antenna radiation unit is arranged on the upper surface of the dielectric substrate, and a metal floor is arranged on the lower surface thereof. The antenna radiating unit is divided into two parts by a U-shaped groove. The lower dielectric substrate and the antenna radiating unit are both rectangular in structure. The U-shaped groove is composed of three successively vertical groove lines, and the two end groove lines are connected with the antenna radiation unit. One side of the U-shaped groove is connected, and the part surrounding the U-shaped groove is called the central metal 1A, and the other part is called the peripheral metal 1B.
[0037] The upp...
Embodiment 2
[0062] An implanted device includes the implanted antenna. The implanted antenna includes an antenna radiation unit, an upper dielectric substrate, a lower dielectric substrate, a metal floor, a diode group, a metal via, a coaxial feed structure, and a DC feed structure. The antenna radiation unit is located at a high dielectric constant The upper surface of the lower dielectric substrate, the metal floor is located on the lower surface of the high dielectric constant lower dielectric substrate. Radio frequency switching diodes are distributed on the antenna radiation unit. The DC feed system is connected to the antenna through a radio frequency isolation inductor, and the control circuit switch can switch the circular polarization state of the antenna.
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