In this paper, a novel substrate integrated waveguide (SIW) to substrate integrated coaxial line (SICL) transition using the 3 dB SIW power divider (PD) and SIW 180° phase shifter (PS) is proposed. The SIW-to-SICL transition realizes the easy integration of SIW, SICL, and active device in the same microwave communication system based on the substrate-integrated technology (SIT). To validate the design concept, the prototype has been fabricated and measured. Measurements are in good agreement with simulations, and shows that the SIW-to-SICL transition features ultra-low insertion loss lower than 0.25 dB and with a fractional bandwidth over 10%.
2. Gatti, F., M. Bozzi, L. Perregrini, K. Wu, R. G. Bosisio, and , "A novel substrate integrated coaxial line (SICL) for wide-band applications," 36th European Microwave Conference, 1614-1617, 2006.
3. Bozzi, M. , A. Georgiadis, and K. Wu, "Review of substrate-integrated waveguide circuits and antennas," IET Microwaves, Antennas & Propagation, Vol. 5, No. 8, 909-920, 2011.
4. He, F. F., K. Wu, W. Hong, L. Han, and X.-P. Chen, "Low-cost 60-GHz smart antenna receiver subsystem based on substrate integrated waveguide technology," IEEE Trans. Microw. Theory Tech., Vol. 60, No. 4, 1156-1165, 2012.
5. Zhou, Y. and S. Lucyszyn, "Modelling of reconfigurable terahertz integrated architecture (Retina) SIW structures," Progress In Electromagnetics Research, Vol. 105, 71-92, 2010.
6. Gatti, F., M. Bozzi, L. Perregrini, K. Wu, and R. G. Bosisio, "A new wide-band six-port junction based on substrate integrated coaxial line (SICL) technology," IEEE Mediterranean Electrotechnical Conference,, 367-370, 2006.
7. Zhu, , F., W. Hong, J.-X. Chen, and K. Wu, "Ultra-wideband single and dual baluns based on substrate integrated coaxial line technology," IEEE Trans. Microw. Theory Tech., Vol. 60, No. 10, 3062-3070, 2012.
8. Liang, W. and W. Hong, "Substrate integrated coaxial line 3 dB coupler," Electronics Letters, Vol. 48, No. 1, 35-36, 2012.
9. Liu, Q. , Y. Liu, Y. Wu, S. Li, C. Yu, and M. Su, "Broadband substrate integrated coaxial line to CBCPW transition for rat-race couplers and dual-band couplers design," Progress In Electromagnetics Research C, Vol. 35, 147-159, 2013.
10. Hui, J. N., W. J. Feng, and W. Q. Che, "Balun bandpass filter based on multilayer substrate integrated waveguide power divider," Electronics Letter, Vol. 48, No. 10, 571-573, 2012.
11. Xu, Z. Q., Y. Shi, P. Wang, J. X. Liao, and X. B. Wei, "Substrate integrated waveguide (SIW) filter with hexagonal resonator," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 11-12, 1521-1527, 2012.
12. Gong, K., W. Hong, Y. Zhang, P. Chen, and C. J. You, "Substrate integrated waveguide quasi-elliptic filters with controllable electric and magnetic mixed coupling," IEEE Trans. Microw. Theory Tech., Vol. 60, No. 10, 3071-3078, 2012.
13. Zou, X., C. M. Tong, and D. W. Yu, "Y-junction power divider based on substrate integrated waveguide," Electronics Letters, Vol. 47, No. 25, 1375-1376, 2011.
14. Che, W., E. K.-N. Yung, K.Wu, and X. Nie, "Design investigation on millimeter-wave ferrite phase shifter in substrate integrated waveguide," Progress In Electromagnetics Research, Vol. 45, 263-275, 2004.
15. Cheng, Y. J., W. Hong, and K. Wu, "Broadband self-compensating phase shifter combining delay line and equal-length unequal-width phaser," IEEE Trans. Microw. Theory Tech., Vol. 58, No. 1, 203-210, 2010.
16. Han, S., X. L.Wang, Y. Fan, Z. Yang, and Z. He, "The generalized chebyshev substrate integrated waveguide diplexer," Progress In Electromagnetics Research, Vol. 73, 29-38, 2007.
17. Cheng, Y. J., "Substrate integrated waveguide frequency-agile slot antenna and its multibeam application," Progress In Electromagnetics Research, Vol. 130, 153-168, 2012.
18. Bakhtafrooz, A., A. Borji, D. Busuioc, and S. Safavi-Naeini, "Novel two-layer millimeter-wave slot array antennas based on substrate integrated waveguides," Progress In Electromagnetics Research, Vol. 109, 475-491, 2010.
19. Liu, Y., X. H. Tang, and T. Wu, "SIW-based low phase-noise millimeter-wave planar dual-port voltage-controlled oscillator," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 8-9, 1059-1069, 2012.
20. Lee, S., S. Jung, and H. Y. Lee, "Ultra-wideband CPW-to-substrate integrated waveguide transition using an elevated-CPW section," IEEE Microw. Wireless Compon. Lett., Vol. 18, 746-748, 2008.
21. Deslandes, D. and K. Wu, "Analysis and design of current probe transition from grounded coplanar to substrate integrated rectangular waveguides," IEEE Trans. Microw. Theory Tech., Vol. 53, 2487-2494, 2005.
22. Salehi, M. and E. Mehrshahi, "A closed-form formula for dispersion characteristics of fundamental SIW mode," IEEE Microw. Wireless Compon. Lett., Vol. 21, No. 4, 4-6, 2011.