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Ultra-Wideband Compact Millimeter-Wave Printed Ridge Gap Waveguide Directional Couplers for 5G Applications by Mohamed Mamdouh M. Ali; Osama M. Haraz; Islam Afifi; Abdel-Razik Sebak; Tayeb A. Denidni is a Engineering article available to read on EtoBox.
What is Ultra-Wideband Compact Millimeter-Wave Printed Ridge Gap Waveguide Directional Couplers for 5G Applications about?
A compact ultra-wideband printed ridge gap waveguide directional couplers for millimeter-wave applications are presented in this paper. A multi-layer coupling technique between two resonant patches is adopted to achieve a wider operating bandwidth with better amplitude and phase balance compared to single-layer technology. For this purpose, a systematic design procedure is deployed to achieve several coupling values in the range of 3-10 dB over a wide frequency bandwidth centered at 30 GHz. A 3-dB hybrid coupler is fabricated and measured, where a bandwidth of 12 GHz (about 38 % fractional bandwidth) from 25 GHz to 37 GHz is achieved. In addition, the phase balance is 90 o ± 5 o over 38% fractional bandwidth with an amplitude balance of 3.4 ± 0.5 dB over a 26.5% centered at 30 GHz. The proposed couplers with superior characteristics such as compactness, low loss, and low dispersion are considered a good candidate for millimeter-wave applications such as the fifth-generation (5G) wireless communications.INDEX TERMS Hybrid coupler, printed ridge gap waveguide, multilayered structure, proximity coupling, resonating patches, millimeter waves, fifth-generation (5G) cellular.
Who reads Ultra-Wideband Compact Millimeter-Wave Printed Ridge Gap Waveguide Directional Couplers for 5G Applications?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Mohamed Mamdouh M. Ali; Osama M. Haraz; Islam Afifi; Abdel-Razik Sebak; Tayeb A. Denidni
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)