Scholarly record
MICROSTRIP CROSSOVER WHOSE SIZE HAS BEEN REDUCED BY COMPACT ELEMENTS
Abstract
This article describes the design of a crossover whose dimensions are miniaturized using compact elements. Crossover is a directional coupler that allows you to transmit the incoming power to the input diagonally to one output, the rest can be considered untied. Compact units are designed in such a way as to achieve identical characteristics with replaceable lines. The number of connected loops in the crossover design will affect the dimensions and bandwidth of the device. With the help of mathematical modeling, the topology of the standard design was obtained, and after its dimensions were reduced by installing compact elements. Miniaturization allows not only to save the material on which they are made, but also the cost of the associated costs associated with the manufacture of such devices. Compact crossover has an area that is a percentage of 65.7% less than the usual design. However, with the decrease in the size of the structure increased losses and narrowed the band operating frequencies. Miniaturization also requires additional time to calculate compact elements, and design optimization to achieve acceptable results.
Publication Impact Profile
Publication details
References14
S.-S. Liao and J.-T. Peng, "Compact planar microstrip branch-line couplers using the quasi-lumped elements approach with nonsymmetrical and symmetrical T-shaped structure," IEEE Trans. Microw. TheoryTech., vol. 54, pp. 3508-3514, Sep. 2006.
Letavin Denis, “Miniature microstrip branch line coupler with folded artificial transmission lines,” AEU - International Journal of Electronics and Communications, vol. 99, pp. 8-13, Feb. 2019. DOI: 10.1016/j.aeue.2018.11.016.
Letavin Denis A., “Compact branch-line coupler based on an inductor and a u-shaped capacitor,” 19th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM 2018, pp. 195-198, July 2018. DOI: 10.1109/EDM.2018.8435096.
K. W. Eccleston, S. H. M. Ong, "Compact planar microstripline branch-line and rat-race coupler," IEEE Trans. Microw. Theory Tech., vol. 51, pp. 2119-2125, Oct. 2003.
S.-S. Liao, P.-T.Sun, N.-C.Chin and J.-T.Peng, "A novel compact-size branch-line coupler," IEEE Microw.Wireless Compon.Lett. vol. 15, pp. 588-590, Sep. 2005.
Letavin Denis A., “Compact crossover based on low-pass filters,” 19th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM 2018, pp. 192-194, July 2018. DOI: 10.1109/EDM.2018.8434978.
Letavin Denis A., “Compact microstrip three-loop coupler,” 2017 International Applied Computational Electromagnetics Society Symposium - Italy, ACES 2017, May. 2017, DOI: 10.23919/ROPACES.2017.7916036.
Letavin Denis A., “Miniature branch-line coupler structure analysis,” 18th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM 2017, July. 2017, pp. 99-101. DOI: 10.1109/EDM.2017.7981717.
J. Wang, B. Z. Wang, Y.-X.Guo, L.-C.Ong, and S. Xiao "A compact slow-wave microstrip branch-line coupler with high performance," IEEE Microw.Wireless Compon.Lett. vol. 17, pp. 501-503, Jul. 2007.
Letavin Denis A., “Compact dual-frequency microstrip branch-line coupler using artificial transmission lines,” 19th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM 2018, pp. 185-188, July 2018. DOI: 10.1109/EDM.2018.8434988.
Letavin Denis A., “Two Methods for Miniaturization of Stub Quadrature Couplers,” Journal of Communications Technology and Electronics, vol. 63, Issue 8, Aug. 2018, pp. 933-935. DOI: 10.1134/S1064226918080107
H.Ghali, T. A. Moselhy, "Miniaturized fractal rat-race, branch-line, and coupler-line hybrids," IEEE Trans. Microw. Theory Tech., vol. 52, pp. 2513-2520, Nov. 2004.
Letavin Denis A., “Five-Stub Directional Device with Substantially Reduced Overall Dimensions,” 2018 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2018. DOI: 10.23919/RADIO.2018.8572386
C. W. Tang, M.-G.Chen, "Synthesizing microstrip branch-line coupler with predetermined compact size and bandwidth," IEEE Trans. Microw. Theory Tech., vol. 55, pp. 1926-1934, Sep. 2007.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.


