PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 117 > pp. 393-407

A NOVEL QUASI-ELLIPTIC WAVEGUIDE TRANSMIT REJECT FILTER FOR KU-BAND VSAT TRANSCEIVERS

By Z. Xu, J. Guo, C. Qian, and W.-B. Dou

Full Article PDF (1,060 KB)

Abstract:
In this paper, a novel compact quasi-elliptic waveguide low-pass transmit reject filter (TRF) by using T-shape units is proposed for Ku-band very small aperture terminal (VSAT) transceivers. The equivalent circuit model of the T-shape unit is investigated and shows a topology similar to that of the elliptic low-pass filter. In order to reduce the difficulty in physical realization, which is commonly encountered with a standard elliptic low-pass filter, an approximate elliptic low-pass filter prototype is presented. Accordingly, a synthesis approach is developed to obtain the initial dimensions of the filter. To optimize the performance of the filter, full-wave electromagnetic simulation is used to fine-tune the dimensions of the filter. An eleven-order Ku-band low-pass TRF is designed and fabricated using a WR-75 waveguide. Measured results show it has a low insertion loss of less than 0.3\,dB in the pass band and a high attenuation slope of 78 dB/GHz. Moreover, the miniaturized size of the filter is only 38 mm × 38 mm × 42 mm (WR-75 flange size is 38 mm × 38 mm).

Citation:
Z. Xu, J. Guo, C. Qian, and W.-B. Dou, "A Novel Quasi-Elliptic Waveguide Transmit Reject Filter for Ku-Band Vsat Transceivers," Progress In Electromagnetics Research, Vol. 117, 393-407, 2011.
doi:10.2528/PIER11051601
http://www.jpier.org/PIER/pier.php?paper=11051601

References:
1. Maral, G., VSAT Networks, 2nd Ed., John Wiley & Sons, Inc., 2003.
doi:10.1002/0470866861

2. Chen, H. and Y.-X. Zhang, "A novel and compact low-pass quasi-elliptic ¯lter using hybrid microstrip/CPW structure," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 17--18, 2347-2353, 2008.
doi:10.1163/156939308787543714

3. Kuo, J.-T., S.-C. Tang, and S.-H. Lin, "Progress In Electromagnetics Research," Progress In Electromagnetics Research, Vol. 114, 395-405, 2011.

4. Yang, R.-Y., C.-M. Hsiung, C.-Y. Hung, and C.-C. Lin, "A high performance bandpass ˉlter with a wide and deep stopband by using square stepped impedance resonators ," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 11--12, 1673-1683, 2010.
doi:10.1163/156939310792149722

5. Paskiaraj, D., K.-J. Vinoy, and A.-T. Kalghatgi, "Analysis and design of two layered ultra wide band filter," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 8--9, 1235-1243, 2009.

6. AlHawari, A. R. H., A. Ismail, M. F. A. Rasid, R. S. A. R. Abdullah, B. K. Esfeh, and H. Adam, "Compact microstrip band-pass ¯lter with sharp passband skirts using square spiral res-onators and embedded-resonators," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 5--6, 675-683, 2009.
doi:10.1163/156939309788019895

7. Shen, W., W.-Y, Yin, and X.-W. Sun, "Compact microstrip tri-section bandpass filters with mixed couplings," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 13, 1807-1816, 2010.

8. Wang, Z., B. Zhao, Q. Lai, H. Zhong, R.-M. Xu, and W. Lin, "Design of novel millimeter-wave wideband bandpass filter based on three-line microstrip structure," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 5--6, 671-680, 2010.
doi:10.1163/156939310791036359

9. Zhu, Y.-Z., H.-S. Song, and K. Guan, "Design of optimized selective quasi-elliptic filters," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 10, 1357-1366, 2009.
doi:10.1163/156939309789108507

10. Zhou, J.-M., L.-H. Zhou, H. Tang, Y.-J. Yang, J.-X. Chen, and Z.-H. Bao , "\Novel compact microstrip lowpass filters with wide stopband using defected ground structure," Journal of Electromagnetic Waves and Applications, Vol. 25, No. 7, 1009-1019, 2011.
doi:10.1163/156939311795253984

11. Weng, L.-H., S.-J. Shi, X.-Q. Chen, Y.-C. Guo, and X. W. Shi, "A novel CSRRs DGS as lowpass filter," Journal of Electromagnetic Waves and Applications, Vol. 22, No. 14--15, 1899-1906, 2008.
doi:10.1163/156939308787537874

12. Chen, H., R. Wu, J. Liu, and Z. Han, "GPR migration imaging algorithm based on NUFFT," PIERS Online, Vol. 6, No. 1, 16-20, 2010.
doi:10.2529/PIERS090907050824

13. Fool, S. and S. Kashyap, "Cross-correlated back projection for UWB radar imaging," Antennas and Propagation Society International Symposium IEEE, Vol. 2, 1275-1278, 2004.

14. Rosolowsky, E. W., A. A. Goodman, D. J. Wilner, and J. P. Williams, "The spectral correlation function: A new tool for analyzing spectral line maps," The Astrophysical Journal, Vol. 524, 887-894, 1999.
doi:10.1086/307863

15. Schneider, J., P. Amaro-Seoane, and R. Spurzem, "Higher order moment models of dense stellar systems: Applications to the modeling of the stellar velocity distribution function ," Mon. Not. R. Astron. Soc., Vol. 2, 1-2, 2010.

16. Mayordomoet, A. M., et al., "Optimal background subtraction in GPR for humanitarian demining," EuRAD 2008, 48-51, 2008.

17. Bouma, B. and G. Tearney, Handbook of Optical Coherence Tomography, Marcel Dekker, 2002.

18. Saleh, B. E. A. and M. C. Teich, Fundamental of Photonics, John Wiley & Sons, 1991.
doi:10.1002/0471213748

19. Yarovoy, A., et al., "The dielectric wedge antenna," IEEE Trans. Antennas Propagat., Vol. 50, 1460-1472, 2002.
doi:10.1109/TAP.2002.803968

20. Ventsel, E. S., Theory of Probability, Mir, Russia, Moscow, 1983.


© Copyright 2014 EMW Publishing. All Rights Reserved