Closed form expressions to find the far‐field patterns of an equilateral triangular dielectric resonator antenna for various higher order modes

다국어 초록 (Multilingual Abstract)

In this work, an equilateral triangular dielectric resonator antenna (ETDRA) is modeled as a source free dielectric cavity, bounded by perfect magnetic conductor to investigate its radiation characteristics for various TMmnpz modes. Closed form compact expressions are provided to compute the far‐zone radiation patterns for different TMmnpz modes. Radiated power, quality factor, gain, efficiency, bandwidth, etc. are also investigated. Theoretical far‐field radiation patterns are compared with simulated (HFSS) data for first five modes that is, TM101,TM111,TM201,TM211 and TM301 modes. Theoretical far‐field patterns are also verified with measured data (our own experimental data and data available, as found in the open literature) for TM101,TM201 and TM211 modes. It is found that three modes out of first five modes produce a peak in the broad‐side direction. From this investigation, it is also found that different ETDRAs having a fixed value of aspect ratio (side length/height) produce almost same radiated powers, Q‐factor, bandwidth, efficiency, etc. for a fixed value of relative permittivity.