This article reports the impact of using an ordinary adhesive material to bond a dielectric resonator antenna (DRA) to the ground plane to predict the potential variations in resonant frequency and impedance bandwidth of DRA. A set of aperture fed and monopole fed cylindrical DRAs have been analyzed at resonant frequencies of 2.4 and 8.9 GHz. For DRAs resonating at 2.4 GHz, an upward resonance frequency shift of 6.2% along with increase of 1.4 to 2% in impedance bandwidth have been observed. However, a significant shift of 12% in the resonant frequency and 17–20% increase in impedance bandwidth have been observed for DRAs operating at 8.9 GHz. End‐fire TM01 mode has been excited in the DRAs, and it has been observed that the adhesive material has not affected the operating resonant mode.
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Faiz et al. (2014) studied this question.
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