Honeycomb distributed controllable plasma metamaterial narrow-band wave absorber

Abstract

The invention discloses a honeycomb distributed controllable plasma metamaterial narrow-band wave absorber. A periodic structure unit employs a special honeycomb hexagonal structure and comprises a bottom-layer metal reflection plate, a dielectric substrate and a solid-state plasma resonant unit, wherein the dielectric substrate is arranged above the metal plate, solid-state plasma is achieved byan array comprising PIN units, and a PIN unit array is controlled and simulated by programmable logic arrays loaded at two ends of the solid-state plasma so as to obtain the solid-state plasma. The plasma metamaterial narrow-band wave absorber has a good absorption effect on a TE polarization wave and has a favorable absorption effect on electromagnetic wave incident at a large angle, a simulationregion of a resonant unit comprising the solid-state plasma is controlled by a programming mode, the simulation of different resonant units can be achieved, so that the purpose of dynamically controlling different frequencies of the wave absorber is achieved, the narrow-band absorption of the wave absorber is achieved, and the working frequency of the wave absorber can cover the whole X band under the condition that the simulation region is appropriately selected.

Description

technical field [0001] The invention relates to a controllable plasma metamaterial narrow-band wave absorber with honeycomb distribution, which belongs to the field of radio communication and microwave devices. Background technique [0002] With the development of information technology, microwave devices have been widely used in various systems in communication. Such as the antenna at the transmitting end, the electromagnetic shielding box, etc. Preventing electromagnetic interference and electromagnetic stealth have broad application prospects in military and civilian fields. Electromagnetic absorber is a kind of microwave device designed to meet this requirement, and it has been more and more widely used in the field of communication. In the military field, improving the electromagnetic stealth characteristics of weapons and equipment and reducing the probability of being detected by the enemy is a prerequisite for winning modern warfare. In the civilian field, basic d...

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Problems solved by technology

However, it is difficult to obtain a tunable absorption spectrum for a metamaterial absorber in the traditional sense. To obtain a tunable absorption spectrum, a large number of lumped components have to be introduced, the control circuit is complicated, and it is not conducive to integration and chip-based integrated manufacturing.

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