基于双层六边形SIR小型化LTCC 宽带带通滤波器
Compact Wideband LTCC Bandpass Filter Using Dual-Layer Hexagonal Shape SIRs

作者: 张言明 , 王家男 :中国矿业大学信息与电气工程学院,徐州; 蔡宇停 :中国矿业大学计算机科学与技术学院,徐州;

关键词: 双层SIRLTCC带通滤波器Double Layer Step-Impedance-Resonator (SIR) LTCC Band Pass Filter

摘要:
本文利用双层六边形开环阶梯阻抗谐振器(Step Impedance Resonator, SIR)设计小型低温共烧陶瓷 (Low Temperature Con-fired Ceramic, LTCC)滤波器,该滤波器是由四个双层六边形开环SIR集成在多层陶瓷介质中利用低阻抗部分耦合产生一个紧凑的尺寸微波滤波器,谐振器低阻抗部分开口端产生容性耦合目的是进一步降低谐振频率。所设计的电路尺寸为8.0 × 6.0 × 1.0 mm3,测试结果表明滤波器在中心频率5.80 GHz处具有21%的相对带宽。从7.511 GHz具有超过30 dB的抑制,性能良好

Abstract:
A compact wideband bandpass filter, exploiting dual-layer hexagonal shape open-loop folded step- impedance-resonator (SIR), using low temperature co-fired ceramic (LTCC) technology, has been designed and fabricated. The filter is composed of four hexagonal shape open-loop SIRs embedded in multilayer thin ceramic to produce a compact size, which exploits coupling by overlapping of low impedance parts of SIRs. The capacitive coupling is purposely established between the two open ends of low impedance part of the resonator to further reduce the resonance frequency. The volume of the filter is 8.0 × 6.0 × 1.0 mm3. The proposed topology is demonstrated with a design operating at 5.80 GHz with about 21.0% bandwidth. More than 30 dB of spurious suppression from 7.5 to 11 GHz is demonstrated in the experimental results.

文章引用: 张言明 , 王家男 , 蔡宇停 (2014) 基于双层六边形SIR小型化LTCC 宽带带通滤波器 。 电路与系统, 3, 7-11. doi: 10.12677/OJCS.2014.31002

参考文献

[1] Nosrati, M. and Mirzaee, M. (2010) Compact wideband microstrip bandpass filter using quasispiral loaded multiple-mode resonator. IEEE Microwave and Wireless Components Letters, 20, 607-609.

[2] Chen, J.-X., Yum, T.Y., Li, J.-L. and Xue, Q. (2006) Dual-mode dual-band bandpass filter using stacked-loop structure. IEEE Microwave and Wireless Components Letters, 16, 502-504.

[3] Chang, S.F., Jeng, Y.H. and Chen, J.L. (2004) Dual-band step-impedance bandpass filter for multimode wireless LANs. Electronics Letters, 40, 38-39.

[4] Chin, K.-S., Hung, J.-L., Huang, C.-W., Fu, J.S., Chen, B.-G. and Chen, T.-J. (2010) LTCC dual-band stepped-impedance-stub filter constructed with vertically folded structure. Electronics Letters, 46, 1554-1556.

[5] Kundu, A.C. and Awai, I. (2001) Control of attenuation pole frequency of a dual-mode microstrip ring resonator bandpass filter. IEEE Transactions on Microwave Theory and Techniques, 49, 1113-1117.

[6] Lugo, C. and Papapolymerou, J. (2005) Bandpass filter design using a mi-crostrip triangular loop resonator with dualmode operation. IEEE Microwave and Wireless Components Letters, 15, 475-477.

[7] Chin, K.-S., et al. (2007) Microstrip open-loop resonator with multispurious suppression. IEEE Microwave and Wireless Components Letters, 17, 574-576.

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