Quasi-elliptic 150 GHz highly selective LTCC filter

In this paper, and for the first time to the best of our knowledge, a very challenging 4-pole quasi-elliptic filter in the submillimetric wave range is studied and fabricated by the LTCC technology. The proposed 4-pole filter, centered at 150 GHz with 2 GHz band pass, is described and the coupling a...

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Bibliographic Details
Main Authors: Khalil, A, Passerieux, D, Baillargeat, D, Delhote, N, Verdeyme, S, Rigaudeau, L, Puech, J
Format: Conference Proceeding
Language:English
Subjects:
Apertures
Attenuation
Band pass filters
Frequency measurement
Insertion loss
Low temperature co-fired ceramic (LTCC)
Manufacturing
Performance loss
Propagation losses
quasi-elliptic filter
resonant cavity
Submillimeter wave filters
submillimeter wave range
Submillimeter wave technology
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Summary:In this paper, and for the first time to the best of our knowledge, a very challenging 4-pole quasi-elliptic filter in the submillimetric wave range is studied and fabricated by the LTCC technology. The proposed 4-pole filter, centered at 150 GHz with 2 GHz band pass, is described and the coupling apertures used to provide the required positive and negative couplings are studied. The measured response is in very good agreement with the predicted behavior with a central frequency of 149.7 GHz (0.2% variation) and a 2.02 GHz band pass. The obtained manufactured filter is compact in size (3.32 mm × 2.36 mm × 0.6 mm), has a high performance with 5.5 dB insertion loss at the central frequency and a transmission attenuation over 20 dB for f 0 ± 1.6 GHz.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2010.5517621