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This paper describe a novel design of dual band monopulse antenna array, which is made of a X-band and a K-band in the same planar radiating surface. The K-band array is the traditional waveguide slot antenna, which is interfaced to the X-band antenna. The simulated and measured radiation patterns at center frequency are both presented. The side-lobe level for the sum pattern of two frequency are...
In this paper, the conical conformal antenna array is proposed, which employs a feeding network and three double feed square circularly polarization patches. Good agreement between the theoretical and experimental results is obtained. Its measured 3dB axial ratio bandwidth is about 270MHz, covering 1.37GHz–1.64GHz.The measured radiation pattern of antenna is also presented, which is almost onmidirectional.
Localization services are one of the most important services provided by wireless sensor networks. In this paper, a relative-localization identification of random deployed non-anchored nodes will be presented. Based on relative RSSI information, the system can identify which sensor nodes are placed in locations planned on map. The method can let user put any nodes anywhere (random distributed), and...
This paper focuses on the Electromagnetic compatibility (EMC) design for an anti-jamming smart antenna system. The structure of the system is introduced, analyzed and discussed where the electromagnetic interference may arise. And the corresponding countermeasures are presented, which are diverse as the problems, such as metal shielding, grounding, multilayer designing, Printed Circuit Board (PCB)...
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