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A novel band-pass Frequency Selective Surface (FSS) working on L-band is presented in this paper. By means of the coupling effect of the metallic patches on three different layers, the distributed capacitance of the periodic structure is formed and therefore decreases the resonant frequency. Investigations on the structure variables are presented and a novel unit cell, whose size is only λ0/20, is...
This paper presents a planar microstrip-fed monopole antenna for ultra wideband (UWB) applications. This antenna is based on the planar rectangle monopole antenna. The characteristic of the antenna can be improved by altering the figure of the radiation patch and the ground. HFSS is used to conduct simulation calculation so as to get various performance parameter of the antenna, to make sure that...
Operating as the sensor of the body centric wireless network, the wearable flexible antenna has become an important component of the fourth generation mobile communication (4G). Based on the design requirements of the wearable flexible antenna, a antenna with low profile, light weight, and easy processing technique is presented. The proposed antenna was designed on the thin microwave substrate with...
In this paper, a novel band-pass miniaturized FSS is proposed, in which a unit cell consists of four spiral etched slot lines arranged central-symmetrically on a dielectric substrate, and the spiral elements are placed interlaced so that each element is connected to an adjacent one in another unit cell. Simulation results show the FSS has the dimension of a unit cell only 0.060λ×0.060λ, where λ represents...
A series of novel miniaturized frequency selective surfaces (FSS) are proposed. The unit cells of the structures consist of four rectangle spiral-shaped frequency selective surfaces arranging differently on the interface of a dielectric slab. Simulation by CST Microwave Studio is conducted to analyze the characteristics of the structure and performances are compared to that of the meander line. The...
In this letter, a novel miniaturized periodic element for constructing a bandpass frequency selective surface (FSS) is proposed. Compared to previous miniaturized structures, the FSS proposed has better miniaturization performance with the dimension of a unit cell only 0.061 λ × 0.061 λ , where λ represents the wavelength of the resonant frequency. Moreover, the miniaturization characteristic is stable...
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