Abstract
This study presents the miniaturization of two-section branch microstrip lines coupler using the slow-wave technique. Regular and miniature branch-line couplers operating at 2.4 GHz are designed, fabricated, tested, and compared. Up to 38% reduced size of the miniature coupler is achieved compared to the conventional coupler. The miniaturized coupler is capable of operating from 1.85 to 3.2 GHz with a bandwidth of 1.35 GHz. Overall, the simulation and measurement results demonstrated a good agreement.
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References
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You, K.Y., Chong, J.C., Malek, M.F.A., Lee, Y.S., Mirza, S. (2020). Miniaturized Two-Section Branch-Line Coupler Using Open-Stub Slow-Wave Structure. In: Saini, H.S., Singh, R.K., Tariq Beg, M., Sahambi, J.S. (eds) Innovations in Electronics and Communication Engineering. Lecture Notes in Networks and Systems, vol 107. Springer, Singapore. https://doi.org/10.1007/978-981-15-3172-9_7
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DOI: https://doi.org/10.1007/978-981-15-3172-9_7
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