A Ka-band narrow bandpass filter using LTCC technology
2003; IEEE Microwave Theory and Techniques Society; Volume: 13; Issue: 9 Linguagem: Inglês
10.1109/lmwc.2003.817139
ISSN1558-1764
AutoresByung-Chang Choi, M.G. Stubbs, C.S. Park,
Tópico(s)Electromagnetic Compatibility and Noise Suppression
ResumoA Ka-band low-temperature co-fired ceramic (LTCC) narrow bandpass filter (BPF) is presented first. This BPF shows a very narrow 3 dB fractional bandwidth of 4.5% centered at 28.7 GHz. The advantages of multilayered LTCC technology such as high integration and vertical stacking capabilities were employed to design a three-dimensional interdigital end-coupled embedded microstrip narrow BPF. The difficulties in controlling the precise distance between two adjacent resonators in LTCC end-coupled BPF were overcome by locating the resonators on different layers. The measured insertion loss is 3 dB at 28.7 GHz.
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