| 刘久玲,何世堂,梁勇.声表面波梯形谐振滤波器的级间补偿[J].,2005,24(1):1-4 |
| 声表面波梯形谐振滤波器的级间补偿 |
| Inter-stage compensation of ladder-type SAW resonator filter |
| |
| 中文摘要: |
| 梯形SAW滤波器在进行级联后,其通带的低端会出现下陷,使得级联后的通带特性变坏。本文从阻抗匹配的角度分析了通带低端出现下陷的原因,并采用了在级间加谐振器进行补偿的改进方法,最后给出了理论模拟及实验结果。 |
| 英文摘要: |
| The cascade of ladder-type SAW filter would cause a characteristic degradation in the lower side of the filter passband. On analyzing the reason of this degradation in connection with inter-stage impedance mismatching, this paper suggests the method of inter-stage compensation by adding SAW resonator to the inter-stage so as to reduce this impedance mismatching. Theoretic simulation and experimental test are given with favorable result. |
| DOI：10.11684/j.issn.1000-310X.2005.01.001 |
| 中文关键词: 声表面波 梯形谐振滤波器 级间补偿 |
| 英文关键词: Surface acoustic wave (SAW) Ladder-type resonator filter Inter-stage compensation |
| 基金项目: |
|
| 摘要点击次数: 2638 |
| 全文下载次数: 1055 |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
