1. Liu, S. and H. Jin, "X-ray security inspection technology," Journal of Security University: Science and Technology, Vol. 58, No. 4, 78-80, 2008.
2. Sun, L.-N. and P.-X. Yuan, "Research of detection technology in X-ray security inspection equipment," China Measurement Technology, Vol. 32, No. 3, 20-23, 2006.
3. Sinclair, G. N., R. N. Anderton, and R. Appleby, "Outdoor passive millimeter wave security screening," Security Technology 2001 IEEE 35th International Carnahan, 172-179, Oct. 2001.
4. Anyong, H. and M. Jungang, "Prototype development of an 8 mm-band two dimensional interferometer synthetic aperture radiometer," Proc. IEEE IWISA, 2009.
5. Wang, N.-N., J.-H. Qiu, and W.-B. Deng, "Development status of millimeter wave imaging systems for concealed detection," Infrared Technology, Vol. 31, No. 3, 129-135, China, Mar. 2009.
6. Xue, Y., J. G. Miao, G. L. Wan, A. Y. Hu, and F. Zhao, "Prototype development of an 8 mm band 2-dimensional aperture synthesis radiometer," 2008 International GeoScience and Remote Sensing Symposium, V-413-V-416, Boston, 2008.
7. Nanzer, J. A. and R. L. Rogers, "Human presence detection using millimetre-wave radiometry," IEEE Trans. on Microw. Theory & Tech., Vol. 55, No. 12, 2727-2733, Dec. 2007.
doi:10.1109/TMTT.2007.909872
8. Zheng, C., X. X. Yao, A. Y. Hu, and J. G. Miao, "A passive millimeter-wave imager used fconcealed weapon detection," Progress In Electromagnetics Research B, Vol. 46, 279-297, 2013.
9. Cohn, S. B., "Parallel-coupled transmission line resonator filters," IEEE Trans. on Microwave Theory & Tech., Vol. 6, No. 2, 223-231, Apr. 1958.
doi:10.1109/TMTT.1958.1124542
10. Matthaei, G. L., L. Young, and E. M. T. Jones, "Microwave Filters, Impedance-matching Networks and Coupling Structures," Artech House, 1980.
11. Gupta, K. C., R. Garg, I. Bahl, and P. Bhartia, Microstrip Lines and Slotlines, 2nd Ed., Artech House Inc., 1996.
12. Swanson, D. G. and W. J. R. Hoefer, Microwave Circuit Modelling Using Electromagnetic Field Simulation, Artech House Inc., 2003.
13. Feng, L., Z. Wan, and Q. R. Zheng, "An improved genetic algorithm optimizing microstrip filter with equal width," 2003 6th International Symposium on Antennas, Propagation and EM Theory, Proceedings, 2003.
14. Wang, A.-G. and Q.-N. Lin, "The design for band-pass filter of parallel coupled microstrip lines with equal width," Journal of Circuits and Systems, 43-47, 2000.
15. Kirschning, M. and R. H. Jansen, "Accurate wide-range design equations for the frequency-dependent characteristic of parallel coupled microstrip lines," IEEE Transactions on Microwave Theory and Techniques, Vol. 32, No. 1, 83-90, Apr. 1984.
doi:10.1109/TMTT.1984.1132616
16. Mongia, R., I. Bahl, and P. Bhartia, "RF & Microwave Coupled-line Circuits," Artech House Inc., 1999.
17. Hong, J.-S. and M. J. Lancaster, Microstrip Filters for RF/Microwave Applications, John Wiley & Sons Inc., 2001.
doi:10.1002/0471221619
18. Liu, D. X., B. Gaucher, and U. Pfeifler, Advanced Millimeter-wave Technology, 238-239, John Wiley and Sons, Ltd., Publication, 2009.
doi:10.1002/9780470742969
19., "Agilent in-fixture microstrip device measurement using TRL calibration,", Agilent Poduct Note PN 8720-2, 1991.