An LTCC Coupled Resonator Decoupling Network for Two Antennas
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AbstractAn integrated low-temperature co-fired ceramic (LTCC) coupled resonator decoupling network (CRDN) for two coupled antennas is proposed in this paper. By virtue of LTCC technology, a second-order CRDN is realized by two tightly coupled lumped-element resonators in a volume of 3.2x2.5x1.2 mm(3). Theoretical analysis has revealed that a wide range of mutual admittance of a CRDN can be realized by choosing appropriate I/O coupling elements while the coupled resonators can be consolidated in an LTCC device. This "one-fit-all" feature allows for decoupling a wide range of coupled antennas with different form factors for a given frequency band. To prove the concept, two LTCC CRDNs for decoupling different forms of antennas working in the 2.45-GHz band are designed, fabricated, and tested. Measurement results have demonstrated that significant improvement in isolation can be achieved within a wide operating frequency range in all cases. The presented design theory and circuit topology are general and can be applied to both symmetric and asymmetric two-element antenna arrays.
All Author(s) ListQian KW, Zhao LY, Wu KL
Name of ConferenceIEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)
Start Date of Conference25/01/2015
End Date of Conference28/01/2015
Place of ConferenceSan Diego
Journal nameIEEE Transactions on Microwave Theory and Techniques
Volume Number63
Issue Number10
Pages3199 - 3207
LanguagesEnglish-United Kingdom
KeywordsCoupled resonator decoupling network (CRDN); low-temperature co-fired ceramic (LTCC); multiple-input multiple-output (MIMO) antenna array
Web of Science Subject CategoriesEngineering; Engineering, Electrical & Electronic

Last updated on 2021-13-10 at 00:59