A Geometric Study of Tunable Planar Groove Gap Waveguide Cavities

IEEE Radio and Antenna Days of the Indian Ocean 2017

无线电电子学

Oyedokun, Titus^1 ; Geschke, Riana^1 ; Stander, Tinus^2

Department of Electrical Engineering, Faculty of Engineering and the Built Environment University of Cape Town, South Africa^1

Carl and Emily Fuchs Institute for Microelectronics, Department of Electrical Electronic and Computer Engineering, University of Pretoria, South Africa^2

关键词: Biasing scheme;    Circular cavity;    Comparative simulation;    DC isolation;    Gap waveguides;    Rectangular cavity;    Square cavity;    Tuning ranges;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/321/1/012008/pdf
DOI  :  10.1088/1757-899X/321/1/012008

来源: IOP

【 摘 要 】

A comparative simulation-based study of tunable Planar Groove Gap Waveguide (PGGWG) cavities is presented. All cavities employ a simple biasing scheme to control the resonance of the cavity electronically. This is done by exploiting the DC isolation of the Planar Groove Gap Waveguide geometry for device biasing. Results obtained show that a higher tuning range (1.4%) is obtained with a rectangular PGGWG cavity as opposed to square and circular cavities. A higher unloaded Q-factor is obtained for the square cavity, which is more variable over the tuning range as compared to the circular and rectangular cavities.