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Abstract ▼ AI-Helper

In this paper, DGS(Defected Ground Structure) is applied to multi-layer structure using LTCC(Low Temperature Co-fired Ceramics). Sprial DGS is adopted in order for size-reduction and higher quality factor, the multi-layer DGS has the same characteristics as the planar DGS. Multi-layer bandpass filte...

In this paper, DGS(Defected Ground Structure) is applied to multi-layer structure using LTCC(Low Temperature Co-fired Ceramics). Sprial DGS is adopted in order for size-reduction and higher quality factor, the multi-layer DGS has the same characteristics as the planar DGS. Multi-layer bandpass filter of new shape is confiured using two multi-layer spiral DGS and is designed with no via-hole for the simple process. 5.25 GHz Wireless LAN bandpass filter is designed and fabricated, the insertion loss of the filter is measured less than 1.5 dB, and the size is 2.0 mm${\times}$1.2 mm${\times}$1.1 mm(L${\times}$W${\times}$H).

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