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LTCC lumped parameter filter design and critical process analysis

Author: WangMeiLan
Tutor: LiTianMing
School: University of Electronic Science and Technology
Course: Physical Electronics
Keywords: LTCC Lumped elements Filter HFSS Critical process
CLC: TN713
Type: Master's thesis
Year: 2011
Downloads: 161
Quote: 0
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Abstract


Low-temperature co- fired ceramic ( 1ow the temprature co_fired ceramic LTCC) technology is a three-dimensional , multi-layer wiring technology , the flexibility to design inductance , capacitance components , reducing component space has become more influential in the wireless communication system with modern equipment and technology one of the force and competitive technologies . LTCC LC filter relative to the traditional lumped parameter filter not only can be integrated in a multi-chip module substrate , but also made ??into the form of the 0805, 0603 Surface Mount (SMD) , can largely improve the electronic system of integration , and reliability . This article is the understanding of existing technology platform based on the use of lumped elements filter design . First comprehensive network synthesis method equivalent circuit model of equivalent circuit model simulation using Ansoft Designer with ADS software , the use of three-dimensional electromagnetic field simulation software HFSS establish a three-dimensional model of the capacitance-inductance and to extract effective component values ??. Scan several common filter capacitor physical model of the inductive element analysis , certain sensitive to the size of the components RMS , Q values ??affect the trend . Based on the basis of studies of individual discrete components , the overall layout of the filter in HFSS to complete the establishment of a physical model of the filter and its simulation , simulation results meet the technical requirements . Some key process in LTCC technology , sensitive parameters that affect the performance of the filter , feedback and sensitive parameters in the design , optimization of the filter design . Low temperature co-fired ceramic (LTCC) process line to produce two cut-off frequency of 195MHz and 260MHz LTCC ninth order LC low-pass filter and two center frequencies of 1050MHz, 1950MHz, passband width of 500MHz and 900MHz LTCC fifth-order LC bandpass filter . Finished by the vector network analyzer Agilent E8358A test results in good agreement with the simulation curve , comply with the requirements of the design value , reached the LTCC filter design process to achieve the purpose of combining .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Filtering techniques,the filter
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