volume | PIER Journals

Abstract

This paper investigates the performance of DCS1800/CD-MA-EVDO dual-mode dual-link (DM-DL) UE, and presents an effective solution which is based on our designed high isolation antenna for the UE local electromagnetic interference (EMI). To this end, a DCS1800/CDMA-EVDO DM-DL UE model is firstly brought out, together with its system model, interference analysis and performance evaluation. Simulated results show that the DCS1800 (CDMA-EVDO) local interference will cause a sharp deterioration of the CDMA-EVDO (DCS1800) receiving sensitivity. To solve this problem, then, a compact and high isolation double-band handset antenna is given with its structure designed and performance validated by measurement. On the basis of this antenna and existing UE bandpass filter, we introduce a solution called ``passive isolation" to eliminate the local interference. Finally, the performance of DCS1800/CDMA-EVDO DM-DL UE is researched again by our solution, simulated results indicate that the isolation effect is quite good and the DM-DL UE can work normally.

1., http://www.3gpp.org/specifications/.
doi:10.2528/PIER08111902

2. Lee, Y.-C. and J.-S. Sun, "Compact printed slot antennas for wireless dual- and multi-band operations," Progress In Electromagnetics Research, Vol. 88, 289-305, 2008.
doi:10.2528/PIER08050404

3. Si, , L.-M. and X. Lv, "CPW-FED multi-band omni-directional planar microstrip antenna using composite metamaterial resonators for wireless communications," Progress In Electromagnetics Research, Vol. 83, 133-146, 2008.
doi:10.2528/PIER08061104

4. Wang, C.-J. and S.-W. Chang, "Studies on dual-band multi-slot antennas," Progress In Electromagnetics Research, Vol. 83, 293-306, 2008.
doi:10.2528/PIER05090301

5. Li, J.-Y. and Y.-B. Gan, "Multi-band characteristic of open sleeve antenna," Progress In Electromagnetics Research, Vol. 58, 135-148, 2006.
doi:10.2528/PIER11102705

6. Weng, W.-C. and C.-L. Hung, "Design and optimization of a logo-type antenna for multiband applications," Progress In Electromagnetics Research, Vol. 123, 159-174, 2012.
doi:10.2528/PIER10083001

7. Liao, W.-J., S.-H. Chang, and L.-K. Li, "A compact planar multiband antenna for integrated mobile devices," Progress In Electromagnetics Research, Vol. 109, 1-16, 2010.
doi:10.2528/PIER10011601

8. C.-W. , Chiu, C.-H. Chang, and Y.-J. Chi, "Multiband folded loop antenna for smart phones," Progress In Electromagnetics Research, Vol. 102, 213-226, 2010.
doi:10.2528/PIER09061603

9. Mahatthanajatuphat, C., P. Akkaraekthalin, S. Saleekaw, and M. Krairiksh, "A bidirectional multiband antenna with modified fractal slot FED by CPW," Progress In Electromagnetics Research, Vol. 95, 59-72, 2009.
doi:10.2528/PIER09072404

10. Sze, J.-Y., T.-H. Hu, and T.-J. Chen, "Compact dual-band annular-ring slot antenna with meandered grounded strip," Progress In Electromagnetics Research, Vol. 95, 299-308, 2009.
doi:10.2528/PIER07031405

11. Zhao, G., F.-S. Zhang, Y. Song, Z.-B. Weng, and Y.-C. Jiao, "Compact ring monopole antenna with double meander lines for 2.4/5 GHz dual-band operation," Progress In Electromagnetics Research, Vol. 72, 187-194, 2007.
doi:10.1109/TAP.2005.856037

12. Wong, K.-L. and S.-W. Su C.-L. Tang S.-H. Yeh, "Internal shorted patch antenna for a UMTS folder-type mobile phone," IEEE Trans. on Antennas and Propag., Vol. 53, No. 10, 3391-3394, Oct. 2005.
doi:10.2528/PIER08111907

13. Mahatthanajatuphat, C., S. Saleekaw, P. Akkaraekthalin, and M. Krairiksh, "A rhombic patch monopole antenna with modified minkowski fractal geometry for UMTS, WLAN, and mobile WiMAX application," Progress In Electromagnetics Research, Vol. 89, 57-74, 2009.
doi:10.2528/PIER09112607

14. Secmen, M. and A. Hizal, "A dual-polarized wide-band patch antenna for indoor mobile communication applications," Progress In Electromagnetics Research, Vol. 100, 189-200, 2010.
doi:10.1109/LAWP.2010.2040677

15. Bhatti, R. A., Y. Soongyu, S.-O. Park, and , "Compact antenna array with port decoupling for LTE-standardized mobile phones," IEEE Antennas Wireless Propag. Lett., Vol. 8, 1430-1433, 2009.
doi:10.1109/LAWP.2011.2163051

16. Lizzi, L. and A. Massa, "Dual-band printed fractal monopole antenna for LTE applications," IEEE Antennas Wireless Propag. Lett., Vol. 10, 760-763, 2011.
doi:10.1109/TEMC.2011.2159979

17. Li, Z., W.-X. Zou, and B. Li, "Analysis on coexistence of ultra wideband with OFDM-based communication systems," IEEE Electromagn. Compat., Vol. 53, No. 3, 823-830, 2011.
doi:10.1109/JSAC.2002.805242

18. Matti, H., H. Veikko, and T. Raffaello, "On the UWB system coexistence with GSM900, UMTS/WCDMA, and GPS," IEEE J. Sel. Areas Commun., Vol. 20, No. 9, 1712-1721, Dec. 2002.

19. Giuliano, R., G. Guidoni, and F. Mazzenga, "On the UWB coexistence with UMTS terminals," IEEE Int. Conf. on Communications (ICC), 3571-3575, Jun. 2004.
doi:10.1109/TVT.2010.2049511

20. Tani, A. and R. Fantacci, "A low-complexity cyclostationary-based spectrum sensing for UWB and WiMAX coexistence with noise uncertainty," IEEE Trans. on Vehi. Tech., Vol. 59, No. 6, 2940-2950, Jul. 2010.
doi:10.1109/PIMRC.2010.5671954

21. Sung , K.-W., L. Shi, and J. Zander, "Coexistence of LTE femtocells with GSM cellular network," IEEE Int. Conf. on Personal Indoor and Mobile Radio Communications (PIMRC), 1556-1560, Sep. 2010.
doi:10.1109/MCOM.2009.4907408

22. Hung , N.-M., S.-D. Lin, J. Li, and S. Tatesh, "Coexistence studies for 3GPP LTE with other mobile systems," IEEE Communi. Mag., Vol. 47, No. 4, 60-65, Apr. 2009.

23. Wang, J., D.-C. Yang, R.-M. Zhu, and X. Zhang, "Interference analysis and coexistence studies between E-UTRA and UTRA systems," IEEE Int. Conf. on Vehicular Technology Conference (VTC), 1-6, May 2010.
doi:10.1109/TWC.2003.817417

24. Chiasserini, C.-F. and R. R. Ramesh, "Coexistence mechanisms for interference mitigation in the 2.4-GHz ISM band," IEEE Trans. on Wireless Commun., Vol. 2, No. 5, 964-975, Sep. 2003.
doi:10.1109/TCOMM.2005.860047

25. Giorgetti , A., M. Chiani, and M.-Z. Win, "The effect of narrowband interference on wideband wireless communication systems," IEEE Trans. on Commun., Vol. 53, No. 12, 2139-2149, Dec. 2005.
doi:10.1109/TCOMM.2005.860047

26., http://www.epcos.com/.

Mr. An-Ming Gao

Mr. Wei Jiang

Dr. Ling-Li Kong

Dr. Jian-Ping Ding

Dr. Yong Jiang