多层陶瓷LTCC带通滤波器设计
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摘要
该文提供了一种基于低温共烧陶瓷(low temperature co_fired ceramic,LTCC)技术多层陶瓷微波带通滤波器的设计方法。首先通过ADS软件建立电路模型,使用4级UIR(uniformity impedance resonator)结构设计电路模型中的谐振结构,实现中心频率为625 MHz、带宽为50 MHz的带通滤波器。再使用Ansoft HFSS软件设计新型耦合结构,加强谐振级之间的耦合,进而降低通带内插入损耗(S21)和通带的波动,加强带外的抑制。最终实现了外形尺寸为5.0mm×5.0mm×1.5mm,插入损耗小于3.5dB,带宽为50MHz,带外70MHz处抑制大于40dB,带内波动小于1.0dB,电压驻波比(VSWR)小于1.5,且3 GHz内没有寄生的通带,中心频率为625 MHz较低频的带通滤波器。
The paper provides a design method of multi-layer ceramic microwave bandpass filter based on LTCC(low temperature co_fired ceramic)technology. First, the circuit model is built by ADS software, and the resonant structure in the circuit model is designed by using 4 UIR structure to realize a band-pass filter with a center frequency of 625 MHz and bandwidth of 50 MHz. The Ansoft HFSS software is then used to design a new coupling structure that enhance the coupling between the resonat stages, thereby reducing the insertion loss(S21)and passband fluctuation in the passhand band enhancing out-of-band rejection. The final dimensions are 5.0 mm × 5.0 mm × 1.5 mm, the insertion loss less than 3.5 dB, the bandwidth is 50 MHz, the suppression is greater than 40 dB at out-of-band 70 MHz, the in-band ripple is less than 1.0 dB, and the voltage standing wave ratio(VSWR)is less than 1.5, and there is no parasitic passband in 3 GHz, and the center frequency is 625 MHz lower frequency bandpass filter.
The paper provides a design method of multi-layer ceramic microwave bandpass filter based on LTCC(low temperature co_fired ceramic)technology. First, the circuit model is built by ADS software, and the resonant structure in the circuit model is designed by using 4 UIR structure to realize a band-pass filter with a center frequency of 625 MHz and bandwidth of 50 MHz. The Ansoft HFSS software is then used to design a new coupling structure that enhance the coupling between the resonat stages, thereby reducing the insertion loss(S21)and passband fluctuation in the passhand band enhancing out-of-band rejection. The final dimensions are 5.0 mm × 5.0 mm × 1.5 mm, the insertion loss less than 3.5 dB, the bandwidth is 50 MHz, the suppression is greater than 40 dB at out-of-band 70 MHz, the in-band ripple is less than 1.0 dB, and the voltage standing wave ratio(VSWR)is less than 1.5, and there is no parasitic passband in 3 GHz, and the center frequency is 625 MHz lower frequency bandpass filter.
引文
[1]何博.基于LTCC的小型化毫米波收发组件研究[D].成都:电子科技大学,2012.
[2]孙世春.3 mm LTCC收发组件研究[D].成都:电子科技大学,2010.
[3]侯旎璐,汪洋,刘清超.LTCC技术简介及其发展现状[J].电子产品可靠性与环境试验,2017(1):50-51.
[4]李元勋,叶剑,李颉,等.基于LTCC技术的DC-DC变换器基板设计[J].电子科技大学学报,2017(3):481-536.
[5] SEBASTIAN M, JANTUNEN H. Low loss dielectric materials for LTCC applications:a review[J]. International Materials Reviews, 2008, 53(2):57-90.
[6]绳宇洲.基于LTCC的滤波器设计[D].西安:西安电子科技大学,2014.
[7]苏宏.层叠片式LTCC微波滤波器设计与研究[D].成都:电子科技大学,2006.
[8]杨邦朝,付贤民,胡永达.低温共烧陶瓷(LTCC)技术新进展[J].电子元件与材料,2008(6):1-5.
[9]刘志甫,张发强,郑鹏,等.高性能LTCC微波介质材料研究:从材料到器件[C]//第十九届全国高技术陶瓷学术年会摘要集.武汉:第十九届全国高技术陶瓷学术年会,2016.
[10]夏雷.微波毫米波LTCC关键技术研究[D].成都:电子科技大学,2008.
[11]杨邦朝,胡永达.LTCC技术的现状和发展[J].电子元件与材料,2014, 33(11):5-9, 13.
[12]田中楠,王娇,张念,等.基于SIR和UIR的双通带带通滤波器的设计[J].山西大学学报(自然科学版),2012(3):511-514.
[13] YEUNG L K, WU K L. A compact second-order LTCC bandpass filter with two finite transmission zeros[J].IEEE Transactions on Microwave Theory and Techniques,2003, 51(2):337-41.
[14]邢孟江.基于LTCC工艺的射频无源器件建模与研究[D].西安:西安电子科技大学,2012.
[15] FENG W, GAO X, CHE W, et al. LTCC wideband bandpass filters with high performance using coupled lines with open/shorted stubs[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology,2017, 7(4):602-609.
[16]严浩嘉,李博文,戴永胜.微型LTCC四级带通滤波器的设计[J].固体电子学研究与进展,2017(3):191-194.
[2]孙世春.3 mm LTCC收发组件研究[D].成都:电子科技大学,2010.
[3]侯旎璐,汪洋,刘清超.LTCC技术简介及其发展现状[J].电子产品可靠性与环境试验,2017(1):50-51.
[4]李元勋,叶剑,李颉,等.基于LTCC技术的DC-DC变换器基板设计[J].电子科技大学学报,2017(3):481-536.
[5] SEBASTIAN M, JANTUNEN H. Low loss dielectric materials for LTCC applications:a review[J]. International Materials Reviews, 2008, 53(2):57-90.
[6]绳宇洲.基于LTCC的滤波器设计[D].西安:西安电子科技大学,2014.
[7]苏宏.层叠片式LTCC微波滤波器设计与研究[D].成都:电子科技大学,2006.
[8]杨邦朝,付贤民,胡永达.低温共烧陶瓷(LTCC)技术新进展[J].电子元件与材料,2008(6):1-5.
[9]刘志甫,张发强,郑鹏,等.高性能LTCC微波介质材料研究:从材料到器件[C]//第十九届全国高技术陶瓷学术年会摘要集.武汉:第十九届全国高技术陶瓷学术年会,2016.
[10]夏雷.微波毫米波LTCC关键技术研究[D].成都:电子科技大学,2008.
[11]杨邦朝,胡永达.LTCC技术的现状和发展[J].电子元件与材料,2014, 33(11):5-9, 13.
[12]田中楠,王娇,张念,等.基于SIR和UIR的双通带带通滤波器的设计[J].山西大学学报(自然科学版),2012(3):511-514.
[13] YEUNG L K, WU K L. A compact second-order LTCC bandpass filter with two finite transmission zeros[J].IEEE Transactions on Microwave Theory and Techniques,2003, 51(2):337-41.
[14]邢孟江.基于LTCC工艺的射频无源器件建模与研究[D].西安:西安电子科技大学,2012.
[15] FENG W, GAO X, CHE W, et al. LTCC wideband bandpass filters with high performance using coupled lines with open/shorted stubs[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology,2017, 7(4):602-609.
[16]严浩嘉,李博文,戴永胜.微型LTCC四级带通滤波器的设计[J].固体电子学研究与进展,2017(3):191-194.