Dual band vertically stacked laminated waveguide filter design in LTCC technology
Journal
IEEE Transactions on Microwave Theory and Techniques
Journal Volume
57
Journal Issue
6
Pages
1554-1562
Date Issued
2009-06
Author(s)
Abstract
A new design method of dual-band filters with laminated waveguide (or substrate integrated waveguide) is proposed by taking advantage of the existence of multiple cavity modes. The major design concept is adequately choosing geometric shape of laminated waveguide resonators to control the frequency bands, and positions of open slots and feeding probes to realize the desired coupling coefficients and external quality factors at both bands simultaneously. Two design examples with third-order and quasi-elliptic filter responses are given and verified by experiments. By using the low-temperature co-fired ceramic technology, the laminated waveguide resonators are vertically stacked, and the filter size can be miniaturized. © 2006 IEEE.
Subjects
Coupling coefficient; Dual-band filter; External quality factor; Laminated waveguide; Low-temperature co-fired ceramic (LTCC) technology; Substrate integrated waveguide (SIW)
Other Subjects
Coupling coefficient; Dual-band filter; External quality factor; Laminated waveguide; Low-temperature co-fired ceramic (LTCC) technology; Substrate integrated waveguide (SIW); Bandpass filters; Ceramic materials; Design; Frequency bands; Laminating; Microwave circuits; Optical filters; Q factor measurement; Resonators; Substrates; Technology; Waveguides
Type
journal article