Design of Compact Multi-Channel Diplexer Using Defected Microstrip Structure | ||
| Journal of Communication Engineering | ||
| مقاله 11، دوره 8، شماره 1 - شماره پیاپی 16، فروردین 2019، صفحه 138-145 اصل مقاله (797.68 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22070/jce.2019.3860.1114 | ||
| نویسندگان | ||
| behnoush ghafari tirabadi* 1؛ Majid Afsahi2 | ||
| 1Electrical & Computer Engineering Faculty, Semnan University, semnan, Iran | ||
| 2Semnan University | ||
| چکیده | ||
| In this paper, two compact quad-channel and six-channel diplexer are designed and fabricated using defected microstrip structure (DMS). This structure is designed for the desired frequency based on the literature reviews. The proposed configuration is composed of a conventional T-junction divider with two pairs of open bended stubs and dual/tri-band filters. In designing dual band filters, a loop resonator loaded with two stepped-impedance resonator and defected microstrip structure. In addition, by adding a pair of open stubs, tri-band responses easily achieved without increasing the circuit size. The operating mechanism in resonance frequencies by surface current density is obtained. As a result, the multi-channel diplexer occupies a compact size of 0.13λg by 0.13λg. The measured results are fully in agreement with the simulated predictions indicating that an isolation between channels is more than 29 dB. | ||
| کلیدواژهها | ||
| Index Terms- Compact Diplexer؛ Defected Microstrip Structure؛ Multi-Channel Diplexer | ||
| مراجع | ||
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[1] Y. Chen, H. Wu, Z. Dai and Y. Su, “Design of compact six-channel diplexer,” IEEE Microwave and Wireless Components Letters, vol. 26, no. 10, pp. 792-794, Oct. 2016. [2] P. Deng, M. Lai, S. Jeng, and C. H. Chen, “Design of matching circuits for microstrip triplexers based on stepped-impedance resonators,” IEEE Trans. Microwave Theory and Techniques, vol. 54, no. 12, pp. 4185-4192, Dec. 2006. [3] A. Chinig, A. Errkik, L. El Abdellaoui, A. Tajmouati, J. Zbitou, and M. Latrach, “Design of a microstrip diplexer and triplexer using open loop resonators,” Journal of Microwaves Optoelectronics and Electromagnetic Applications, vol. 15, no. 2, pp. 65-80, April/June 2016. [4] W. Tu and W. Hung, “Microstrip eight-channel diplexer with wide stopband,” IEEE Microwave and Wireless Components Letters, vol. 24, no. 11, pp. 742-744, Nov. 2014. [5] F. Wei, P. Qin, Y. J. Guo and X. Shi, “Design of multi-band bandpass filters based on stub loaded stepped-impedance resonator with defected microstrip structure,” IET Microwaves, Antennas & Propagation, vol. 10, no. 2, pp. 230-236, Jan. 2016. [6] S. Khani, S. Makki, S. Mousavi, M. Danaie and P. Rezaei, “Adjustable compact dual-band microstrip bandpass filter using T-shaped resonators,” Microwave and Optical Technology Letters, vol. 59, no. 12, pp. 2970-2975, Sept. 2017. [7] H. Y. Zeng, G. M. Wang, D. Z. Wei and Y. W. Wang, “Planar diplexer using composite right-/ left-handed transmission line under balanced condition,” Electronics Letters, vol. 48, no. 2, pp. 104-106, 19 January 2012. [8] A. Kumar, R. Patel and M. V. Kartikeyan, “Investigation on microstrip filters with CSRR defected ground structure,” Advanced Electromagnetics, vol. 5, no. 2, pp. 28-33, Sept. 2016. [9] J. Wang, H. Ning, L. Mao, and M. Li, “Miniaturized dual-band bandstop filter using defected microstrip structure and defected ground structure,” Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International, pp. 1-3, 2012. [10] X. Li and H. Wang, “An approach for multi-band bandpass filter design based on asymmetric half-wavelength resonators,” Progress In Electromagnetics Research, vol. 140, no., pp. 31-40, 2013. [11] G. R. Koirala and N. Y. Kim, “Compact and tunable microstrip triband bandstop filter incorporating open stubs loaded stepped-impedance-resonator,” Microwave and Optical Technology Letters, vol. 59, no. 4, pp. 815-818, Feb. 2017. [12] A. Kumar and M. V. Kartikeyan, “Design and realization of microstrip filters with new defected ground structure (DGS),” Engineering Science and Technology, an International Journal, vol. 20, no. 2, pp. 679-686, April 2017. [13] S. C. Gupta, M. Kumar, and R. S. Meena, “Design and analysis of triple notched band UWB band pass filter using defected microstrip structure (DMS),” International Journal of Wireless Communications and Mobile Computing, vol. 5, no. 6, pp. 32, Nov. 2018. [14] H. Liu, P. Wen, S. Zhu, and B. Ren, “Independently controllable dualband microstrip bandpass filter using quadruple mode stub loaded resonator,” International Journal of RF and Microwave Computer Aided Engineering, vol. 26, no. 7, pp. 602-608, April 2016. | ||
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