Design of UHF Thin Film Transformer and Research of its S-Parameter Performance

Abstract:

A novel spiral stacked thin film transformer was designed based on Si IC technology in this paper. And also, the stacked air core and ferrite core thin film transformers with different turns ratio were prepareed. Then, the S-parameter performance of these two kinds of transformers were measured. The measurement results show that the magnetic core thin film transformer has a better electronic transmission performance. It obtains maximum transmission efficiency 93.7% at the frequency range from 10MHz to 20GHz, and the air core transformer obtains maximum 89% at the same frequency range. Many testings show that ferrite core thin film transformer with turns ratio 1:1 can obtain the transmission efficiency over 60% at the frequency range from 2GHz to 16GHz.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 1542-1546
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.1542
• Online since: February 2012
• Authors: Xiao Ping Hu, Bin Chen, Ye Long Zhong, Jun Ming Xu
• Keywords: Parameter Test, Thin Film Transformer, Transmission Efficiency

References

[1] Hayano S, Midorikawa Y and Saito Y: IEEE Transactions on Magnetics,vol.30, no.6(1994), pp.4758-4760.

DOI: 10.1109/20.334213

[2] Lu Huang, Wan-Rong Zhang and Hong-Yun Xie: Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on.(2009), p.990 – 993.

DOI: 10.1109/mape.2009.5355894

[3] Niknejad A M and Meyer R G, "Analysis and optimization of monolithic inductors and transformers for RF Ics," Custom Integrated Circuits Conference(1997), pp.375-378.

DOI: 10.1109/cicc.1997.606650

[4] Kyuchul Chong and Ya-Hong Xie, IEEE Electron Device Letters, vol. 26, no. 8(2005), pp.557-559.

DOI: 10.1109/led.2005.851817

[5] Y.Z. Xiong: Electronics Letters, vol.41(2005),pp.2232-2239.

[6] N.Wang,T., O'Donnell, H. Hauser, etal.: Journal of Magnetism and magnetic Materials(2004), pp.272-276.

[7] R.M.H. Atta: Sensors and Actuators A, no.112(2004), pp.61-65..

[8] Benevent, E., Viala, B., Michel and J.-P: IEEE Trans on Microwave Theory and Techniques, vol.58, no.3(2010), p.645 – 650,.

DOI: 10.1109/tmtt.2010.2040336

[9] Midorikawa Y, Hayano S and Saito Y: IEEE Transactions on Magnetics, vol.31, no.6(1995), pp.4241-4243.

DOI: 10.1109/20.489939

[10] Huo X, Chen K J, Luong H, et al.: Radio Frequency Integrated Circuits (RFIC) Symposium(2004): pp.627-630.

[11] YE Li-yun, QIN Hui-bin and ZHENG Liang: Journal of Hangzhou Dianzi University, vol.27(2007), pp.1-4, In Chinese.

[12] Lim S F, Yeo K S, Ma J G, et al.: International Symposium on VLSI Technology, Systems, and Applications(2003), pp.147-150.