A Wideband High-Power Ridge Gap Waveguide Power Divider for High-Power Division Sub-Systems Applications

Abstract

In this paper, a wideband high-power ridge gap waveguide (RGW) T junction power divider within the frequency band from 10 to 13.5 GHz is introduced. In this configuration, the air has the ridge gap to have maximum power handling capability. An excitation transition, from coaxial cable to the ridge gap waveguide, is introduced. The ridge gap waveguide power divider was fabricated using aluminum sheets to gain the advantage of low cost. The power divider has a wider bandwidth (30%) than the recent most successful RGW power divider along with the high handling power capability (more than 20 K Watts). The power divider design was validated using circuit and 3D full wave electromagnetic simulations and confirmed using experimental measurements with all agreements between results. It has been proved that the power divider attenuation has good matching (15 dB return loss) and equal 3 dB power division with less than 0.05 dB insertion loss. The power divider can be used as a feeder for many high-power application components.

KEYWORDS:

• High-power passive components
• Passive power divider
• Ridge gap waveguide
• RGW

Additional information

Notes on contributors

Ahmed F. Elshafey

Ahmed F Elshafey received the BSc and MSc degrees, with grade of very good with honours, in electrical engineering from the Electronic Engineering Department, Military Technical College, Cairo, Egypt in 2014 and 2020, respectively. He has been with Military Technical College since 2015, where he is now an assistant lecturer in the Electronic Engineering Department. His research has focused on different metamaterial applications in work is the area of passive high-power microwave components and millimeter bands. Also, his research includes EBG components’ waveguide structures and millimetric applications. Email: [email protected]

Ehab K. AbuSaif

Ehab K Abusaif received the BSc and MSc degrees in electrical engineering from Military Technical College, Cairo, Egypt in 1995 and 2001, respectively. He received the PhD degree from the University of Idaho, USA, 2012. He is now an assistant professor in the electromagnetic waves group in Electronic Engineering Department, Military Technical College, Egypt. Email: [email protected]

Mahmoud A. Abdalla

Mahmmoud A Abdalla was born in 1973, received the BSc and MSc degrees in electrical engineering from Military Technical College, Cairo, Egypt in 1995 and 2000, respectively. He received the PhD degree from the School of Electrical Engineering, University of Manchester, UK, in 2009. Also, he has been visiting professor in the Department of Computer and Electrical Engineering, University of Waterloo, Canada since 2017. He is now a professor and head of Electromagnetic Waves Group in Electronic Engineering Department, Military Technical College. Dr Mahmoud was the recipient of Egyptian Encouragement State Prize for Engineering Sciences in 2014. He published more than 200 peer-reviewed journals and conference papers. His research is focusing on miniaturized, multiband and wideband microwave/millimeter antennas and components such as power splitters, filters and couplers. Also, it includes absorbing materials employing metamaterial /EBG structures. He is a senior member of the IEEE/URSI and the European Microwave Association EuMA. He is an editor and reviewer in many high ranked journals where he was awarded the top 1% Publon worldwide reviewer award for 2018 and 2019.