LTCC Balun Bandpass Filters Using Dual-Response Resonators

LTCC Balun Bandpass Filters Using Dual-Response Resonators

The design of compact balanced-to-unbalanced (balun) bandpass filters (BPFs) in the low temperature co-fired ceramic (LTCC) technology is presented. By incorporating the proposed dual-response resonators, an LTCC balun filter with desired bandpass response in differential mode and bandstop response...

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Veröffentlicht in:IEEE microwave and wireless components letters 2011-09, Vol.21 (9), p.483-485
Hauptverfasser: HUANG, Guo-Shu, WU, Chung-Hwa, CHEN, Chun Hsiung
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Balanced-to-unbalanced (balun) bandpass filter (BPF)
Balancing
Baluns
Band pass filters
Bandpass filters
Ceramics
Circuit properties
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Filtering
Filtering theory
Frequency filters
Impedance matching
Inductors
low temperature co-fired ceramic (LTCC)
Materials
Microwaves
Noise levels
Nonhomogeneous media
Oscillators, resonators, synthetizers
Passband
Resonators
Signal convertors
Wireless communication
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Zusammenfassung:The design of compact balanced-to-unbalanced (balun) bandpass filters (BPFs) in the low temperature co-fired ceramic (LTCC) technology is presented. By incorporating the proposed dual-response resonators, an LTCC balun filter with desired bandpass response in differential mode and bandstop response in common mode is obtained. To further improve the out-band suppression response of the filter, another LTCC balun BPF with two controllable transmission zeros is described. Both balun BPFs are practically implemented showing the desired filtering performance with good amplitude and phase imbalances, which are less than 0.05 dB/0.26 dB and 1.9°/2.3° in the passbands, respectively.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2011.2162622