Back to Search
Start Over
LTCC Bandpass Filter With Wide Stopband Based on Electric and Magnetic Coupling Cancellation.
- Source :
- IEEE Transactions on Components, Packaging & Manufacturing Technology; Oct2014, Vol. 4 Issue 10, p1705-1713, 9p
- Publication Year :
- 2014
-
Abstract
- This paper presents a new method of using electric and magnetic coupling cancellation to extend the stopband of bandpass filters (BPFs). The mechanism is theoretically analyzed based on the lumped-element equivalent circuit. Due to the cancellation of electric and magnetic coupling between two resonators, three transmission zeros (TZs) can be generated and controlled by manipulating the coupling strength. Using the proposed method together with sourceāload coupling, a low temperature cofire ceramic (LTCC) BPF is designed with four TZs at the passband edges and within the stopband, resulting in high skirt selectivity and harmonic suppression. Due to the LTCC multilayer structure, the filter size is 0.054 \(\lambda _{g}* 0.045 \lambda _{g}*0.013\lambda _{g}\) , or \(2.48~{\rm mm}\times 2.02~ {\rm mm}\times 0.6\) mm. The theoretical, simulated and measured results of the LTCC BPF are presented to validate the proposed design. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21563950
- Volume :
- 4
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Components, Packaging & Manufacturing Technology
- Publication Type :
- Academic Journal
- Accession number :
- 98708291
- Full Text :
- https://doi.org/10.1109/TCPMT.2014.2346240