南京理工大学学报（自然科学版）2012，Vol.36Issue(5)：869-872,4.
高次谐波抑制微型滤波器研究
Miniaturization Filter with High-order Harmonic Suppression
摘要
Abstract
To suppress the high-order harmonic in miniaturization filters, using the multi-layer coupling strip line resonator and the principle of cross-coupling transmission zeros,the cross-coupling is introduced in an improved passband filter with three-dimensional comb line structure for enhancing the non-adjacent resonant interstage coupling. The Z font conductor layer is added between the second and fourth resonant stages to control transmission zero position. By adjusting the load capacitance properly, the filter size is reduced and the high-order harmonic is suppressed. Based on the low temperature co-fired ceramic technology, a miniaturized band-pass filter with 1. 3 GHz centre frequency and 200 MHz bandwidth is designed and fabricated. The simulation and test results show that the inserted loss of the filter is less than 2.0 dB in the passband, the third-order and fourth-order harmonics suppression is more than 45 dB,and the filter size is only 4. 8 mm×4. 2 mm×l.5 mm.关键词
低温共烧陶瓷/微型滤波器/三维梳状线/高次谐波/抑制Key words
low temperature co-fired ceramic/ miniaturization filter/ three-dimensional comb lines/ high-order harmonic/ suppression分类
信息技术与安全科学引用本文复制引用
戴永胜,张红,徐利,王立杰,陈少波..高次谐波抑制微型滤波器研究[J].南京理工大学学报（自然科学版）,2012,36(5):869-872,4.基金项目
国家重点基础研究发展"973"计划(2009CB320201) （2009CB320201）
国防重点实验室基金(9140C1402021102) （9140C1402021102）
