Design of Embedded and Miniaturized Multilayer LTCC Hairpin Bandpass Filters

Abstract:

This paper presents a new multilayered stripline hairpin bandpass filter using a broadside-coupled hairpin resonator in a low-temperature co-fired ceramic(LTCC) substrate. By using the new structure designs accomplish the vertical coupling in multilayer system, the size of the proposed filter can be reduced about 50% compared to an equivalent single-layer hairpin resonator filter. As an example, an L-band filter centered at 1.10 GHz with a fractional bandwith of 13.5% is designed, fabricated, and measured. The measured results of the fabricated filters agree very well with the electromagnetic simulations.

• Periodical: Advanced Materials Research (Volumes 542-543)
• Pages: 846-849
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.542-543.846
• Online since: June 2012
• Authors: Xiao Wei Gu, Xiao An Bao, Cheng Hai Yu, Xiong Wei Li, Li Cao
• Keywords: Bandpass Filter (BPF), Multilayer Structure, Striplines Resonators

References

[1] Z.G. Wang, B.Yan and Y.C. Guo. 2008 Asia-Pacific Microwave Conference, (2008),p.1

[2] A.Djaiz, A.Denidni, IEEE Transactions on Microwave Theory and Techniques, Vol.54(2006), p.(1929)

[3] Y.N.Mu, Z.W.Ma, and D.M.Xu, IEEE Microwave and Wireless Components Letters, Vol.15(2005), p.847

[4] Z.C. Hao, J.S. Hong, Electronics Letters vol.44(2008), p.1197

[5] G.J. Sung, D.H. Yeo, 33rd European Microwave Conference, (2003), p.187

[6] M. Sagawa, M. Makimoto and S.Yamashita, IEEE Trans. on Microwave Theory Tech., vol. MTT-45(1997), p.1078

[7] J. S. Hong and M. J. Lancaster, Mircrostrip Filters for RF/Microwave Applications. Wiley, NY: 2001.