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1 Journal of Telecommunications and Information Technology

1 2019

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Ku Band Bethe Hole Coupler Using Gap Waveguide Technology

Nematpour Efat, Ostovarzadeh Mohamad Hossein, Razavi Seyed Ali

Journal of Telecommunications and Information Technology

2019

nr 3

70--74

The gap waveguide technology is a new technique used for designing and fabricating microwave components, ensuring a low-loss and easy fabrication process, especially at high frequencies, and allowing for the production of multilayer structures due to the lack of requirement of an electrical connection between the metal layers of the waveguide structure. This paper presents the design and areas of implementation of single-hole and multi-hole 20 dB Bethe couplers, using the groove gap waveguide (GGW) technology for Ku band. Simulation results show that the operating bandwidth of the proposed design is over 40% wider, and its isolation rate is more than 25 dB higher. By using the multi hole conﬁguration, a bandwidth that is more than 59% wider and the isolation rate of over 30 dB may be obtained.