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New diplexer technology research

Author: LiHaiYang
Tutor: WangQingYuan
School: University of Electronic Science and Technology
Course: Radio Physics
Keywords: Short circuit stub Transmission zeros Frequency selective Filter Diplexer
CLC: TN631.2
Type: Master's thesis
Year: 2010
Downloads: 202
Quote: 0
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Abstract


With the rapid development of technology in the field of the various microwave and millimeter-wave circuits and systems in the field of navigation , guidance , remote sensing and control , electronic warfare and other widely used . Meanwhile, in the microwave, millimeter wave communication , the emergence of tension phenomenon of frequency resources . The performance requirements of the wireless communication system of microwave filters and duplexers getting higher and higher , an inevitable requirement in passive components such as filters and duplexers with a small size , low insertion loss , ease of integration , excellent frequency selective , more far parasitic pass band impact characteristics . In this paper, for the above-mentioned objectives expand research , dedicated to the study and design of new miniaturized waveguide duplexer . The short circuit stub filter technology has played an active role in solving these problems . In this paper, the short - circuit stub waveguide filters, duplexers application of new methods , new structures are analyzed and discussed . First of two self-resonant diaphragm structure and a short-circuit support section composed of system simulation analysis of its bandwidth, frequency and transmission zero variation and control methods . The final filter design and overall diplexer and processing debugging , duplexer designed to achieve over 100dB isolation .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Electronic components, assemblies > Microwave transition elements > Reversing switch > Waveguide to change the switch
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