A dual-notch tunable ultra-wideband antenna based on varactor diodes
A technology of varactor diodes and ultra-wideband antennas, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problems that the notch cannot be moved and has not been well resolved, and achieves compact structure, The effect of realizing frequency agility characteristics, improving flexibility and safety
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[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0029] The three-dimensional view of the overall structure of the double-notch adjustable ultra-wideband antenna based on varactor diodes of the present invention, as figure 1 Shown: a double-notch adjustable ultra-wideband antenna based on varactor diodes, including a dielectric substrate 1, a radiation patch 2, a microstrip feeder 3, a "U"-shaped metal strip 4, a parasitic strip structure 5, Grounding plate 6, coaxial cable 7, metal welding wire and pad 8; the upper part of the upper surface of the dielectric substrate 1 is closely attached to the radiation patch 2, and the radiation patch 2 has a "convex" shape groove, and a parasitic strip structure 5 is arranged in the "convex" shaped groove; a microstrip feeder 3 is arranged close to the lower end part of the upper surface of the dielectric substrate 1, and one end of the microstrip f...
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