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This paper focuses on an antenna with a linear taper slot structure. The paper analyzes the impedance and radiation characteristics of this type of antenna and designs a high-gain wideband antenna that operates in the S-band. The simulation results show that the antenna has a comparatively high gain, wide impedance bandwidth and beamwidth in the entire S-band, and can thus be used in the design of...
This paper puts forward an optimized stepped impedance resonator (SIR)-based filter design which is able to optimize the frequency selectivity of the filters by means of an improved filter feeding method. This paper provides a filter design based on SIR. With this design, the zero-degree feeding structure can be achieved through the adjustment of the positions to tap feed lines. The frequency selectivity...
This paper focuses on an antenna with a linear taper slot structure. The paper analyzes the impedance and radiation characteristics of this type of antenna and designs a high-gain wideband antenna that operates in the S-band. The simulation results show that the antenna has a comparatively high gain, wide impedance bandwidth and beamwidth in the entire S-band, and can thus be used in the design of...
This paper focuses on an antenna with a stepped slot structure. The paper analyzes the impedance and radiation characteristics of this type of antenna and designs a high-gain wideband antenna that operates in the L-band and S-band. The simulation results show that the antenna has a comparatively high gain, wide impedance bandwidth and beamwidth in the entire L-band and S-band, and can thus be used...
The voluntary non-remunerated blood donation campaign in Shenzhen, China, was launched in 1993 and the smooth change from paid donors to unpaid took only a decade. In the first half the volunteer donation system and a sufficient blood supply was promoted and this paved the way for further development in the second half during which the non-remunerated donation system became substantial and integral...
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