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Measuring device-independent quantum key distribution scheme can remove all detectors' side-channel flaw, combined with decoy state program to achieve absolute security of quantum key distribution. In this paper, the statistical law of large numbers fluctuate limited key length measuring device-independent quantum key distribution scheme in single-photon counting rate and BER (Bit Error Rate) were...
A new high-gain cylindrical dielectric resonator antenna (DRA) with a large bandwidth is proposed. A cylindrical dielectric resonator (DR), a double-annular patch and a metallic cylinder are used to obtain a large bandwidth and a high gain. The mode TM12 excited in the patch is used to enhance the gain of the DRA, and the cavity formed by the metallic cylinder provides a further higher gain and a...
A new modified mathematics model is proposed based on fuzzy mathematics theory and adaptive weighted algorithm aimed at how to analyze the influence on communication network security. The proposed model is associated with the attention degree on security defense is executed. In the proposed model, the communication network security threat, communication network attack approach, network security character...
This paper presents a novel feed for dual-layer pillbox antenna. The electric field distribution and return-loss of the feed Cavity are analyzed by using vector finite-element method and PML absorption boundary condition. The effect of the different Sub-reflector Shape on the electromagnetic field distribution and the beam width of the feed are studied. A new bow-tie feed structure is proposed. The...
This paper presents a novel Ku-Band low profile antenna system for mobile sitcom. The antenna is designed in the shape of a four-to-one rectangle based on planar antenna array. The method of beam scanning tracking is used which is simple and efficient. The antenna can mechanically scan the communication satellite automatically from 0° to 90° in elevation and 360° coverage in azimuth, achieving remote...
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