基于IPD工艺的小型化无反射带通滤波器设计
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摘要
设计了一款基于集成无源器件(IPD)技术的小型化无反射带通滤波器。它区别于传统滤波器最大的特点是它将阻带信号吸收掉而不是反射回信号源,可以极大的提高电路的线性度。在无反射高低通滤波器的电路拓扑结构下,采用串联形式,完成了具有超宽带的无反射带通滤波器的建模与仿真。该滤波器中心频率为2.03 GHz,中心频率处的插入损耗小于1d B,BW_(-3d B)≤1.91 GHz,回波损耗≥8.5 d B,带外抑制峰值≥14.47 d B,整体尺寸仅为1.6 mm×1.25 mm×0.3 mm。通过仿真实验,验证了串联方式的无反射带通滤波器的可行性。
A miniaturized reflectionless band-pass filter based on integrated passive device(IPD)technology was designed.The biggest feature different from the traditional filter is the stop-band signal instead of reflecting back to the signal source,which can be absorbed to improve the linearity of the circuit greatly.The cascaded low-pass and high-pass reflectionless filters were used to complete the modeling and simulation of the UWB(Ultra Wideband)reflectionless band-pass filter.The center frequency of the bandpass filter is 2.03 GHz,the insertion loss at the center frequency is less than 1 d B,the bandwidth at 3 d B insertion loss is less than1.91 GHz,the return loss is always greater than 8.5 d B,the out-of-band suppression is greater than 14.47 d B,and the overall size is only 1.6 mm×1.25 mm×0.3 mm.Through simulation experiments,the feasibility of cascaded reflectionless band-pass filters was verified.
A miniaturized reflectionless band-pass filter based on integrated passive device(IPD)technology was designed.The biggest feature different from the traditional filter is the stop-band signal instead of reflecting back to the signal source,which can be absorbed to improve the linearity of the circuit greatly.The cascaded low-pass and high-pass reflectionless filters were used to complete the modeling and simulation of the UWB(Ultra Wideband)reflectionless band-pass filter.The center frequency of the bandpass filter is 2.03 GHz,the insertion loss at the center frequency is less than 1 d B,the bandwidth at 3 d B insertion loss is less than1.91 GHz,the return loss is always greater than 8.5 d B,the out-of-band suppression is greater than 14.47 d B,and the overall size is only 1.6 mm×1.25 mm×0.3 mm.Through simulation experiments,the feasibility of cascaded reflectionless band-pass filters was verified.
引文
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[14] MORGAN M A. Reflectionless filters[M]. London:Artech House,2017:56-59.
[15] MORGAN M A, BOYD T A. Reflectionless filter structures[J]. IEEE Trans M icrow ave Theory Tech,2015,63(4):1263-1271.
[2] MINICIRCUITS B N Y. Reflectionless filters improve linearity and dynamic range[J]. M icrow ave J,2015.
[3] MATTHAEI G L,YOUNG L,JONES E M T. Microwave filters, impedance-matching networks, and coupling structures[M]. New York:McGraw-Hill,1964.
[4] NEUMANN G M, SINHUBER D. Absorption filter:US4095965[P]. 1978-06-20.
[5] LEE T H,LEE B,LEE J. First-order reflectionless lumped-element low pass filter(LPF)and bandpass filter(BPF)design[C]//Microwave Symposium. NY,USA:IEEE,2016:1-4.
[6] KHALAJ-AMIRHOSSEINI M, TASKHIRI M M.Tw ofold reflectionless filters of inverse-Chebyshev response w ith arbitrary attenuation[J]. IEEE Trans M icrow ave Theory Tech,2017,65(11):4616-4620.
[7] CHEN C H,HUANG C H,HORNG T S,et al. Very compact transformer-coupled balun-integrated bandpass filter using integrated passive device technology on glass substrate[C]//M icrow ave Symposium Digest. NY,USA:IEEE,2010.
[8] LIU K,FRYE R,EMIGH R. Band-pass-filter with balun function from IPD technology[C]//Electronic Components and Technology Conference, 2008. NY,USA:IEEE,2008:718-723.
[9] PARK J C,PARK J Y,YOON S G. PCB embedded compact balanced filter w ith coupled LC resonators[C]//Electronic Components and Technology Conference,2009.ECTC 2009. NY,USA:IEEE,2009:1977-1982.
[10] CHEN K T,CHUNG S J. A novel compact balanced-tounbalanced low-temperature co-fired ceramic bandpass filter with three coupled lines configuration[J]. IEEE Trans Microwave Theory Tech,2008,56(7):1714-1720.
[11]秦巍巍,石玉,赵宝林.新型吸收式微带线带通滤波器的仿真设计[J].磁性材料及器件,2015(1):50-54.
[12]张钰英,胡诗锦,石玉.基于正交相位的吸收式带通滤波组件设计[J].磁性材料及器件,2017,48(3):37-39.
[13]MORGAN M A, BOYD T A. Theoretical and experimental study of a new class of reflectionless filter[J]. IEEE Trans Microwave Theory Tech,2011,59(5):1214-1221.
[14] MORGAN M A. Reflectionless filters[M]. London:Artech House,2017:56-59.
[15] MORGAN M A, BOYD T A. Reflectionless filter structures[J]. IEEE Trans M icrow ave Theory Tech,2015,63(4):1263-1271.