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Multi Wideband Hexagonal-Spiral Microstrip Band-Pass Filter for Wireless Applications

机译:用于无线应用的多宽带六角螺旋微带带通滤波器

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In this communication, multi-wideband micro-strip Hexagonal-Spiral (HS)band-pass filter is presented. The proposed multiband band-pass filter consists of four spiral shunt quarter-wavelength short-circuited stubs separated by connecting lines with length of λg/2 and λg/4, respectively. Appropriate transmission zeros are generated to isolate the bands of proposed band-pass filter, as desired. From the simulated results, the offered wide bandwidth observed for dual band-pass filter is 240 MHz (0.8 GHz to 1.04 GHz) and 250 MHz (1.18 GHz to 1.43 GHz). The bandwidth for the proposed triple band pass filter are 220 MHz (0.64 GHz to 0.86 GHz), 100 MHz (1.38 GHz to 1.48 GHz), and 400 MHz (2.31 GHz to 2.71 GHz). The triple band HS filter is fabricated and tested with network analyzer. The measured results are in good agreement with the simulation results. These filters are suitable for GSM 900 MHz and WLAN (2.4 GHz) applications.
机译:在此通信中,提出了多宽带微带六角螺旋(HS)带通滤波器。所提出的多带通滤波器由四个螺旋分流器,四分之一波长短路短截线组成,短截线由分别长为λg/ 2和λg/ 4的连接线分开。根据需要,生成适当的传输零点以隔离建议的带通滤波器的频带。根据仿真结果,为双带通滤波器提供的宽带宽为240 MHz(0.8 GHz至1.04 GHz)和250 MHz(1.18 GHz至1.43 GHz)。建议的三通滤波器的带宽为220 MHz(0.64 GHz至0.86 GHz),100 MHz(1.38 GHz至1.48 GHz)和400 MHz(2.31 GHz至2.71 GHz)。三频HS滤波器是用网络分析仪制造和测试的。测量结果与仿真结果吻合良好。这些滤波器适用于GSM 900 MHz和WLAN(2.4 GHz)应用。

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