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An effective imaging modality to delineate ablated regions after microwave ablation (MWA) therapy is crucial to yield successful treatment outcomes. Ultrasound B-mode imaging is widely used to guide the ablation antenna placement. However, the image quality suffers from relatively low imaging contrast due to the similar echogenicity between the ablated and surrounding tissue. In this study, we applied...
This paper examines the methods that can be used to locate the phase centre of antennas and in particular antennas that can be used for high precision position mapping using a global satellite navigation system. The paper examines the accuracy to which these measurements can be achieved in the presence of phase errors.
The validation of a unique non-invasive measurement facility for electrically small antennas in the frequency range 500 MHz to 3 GHz is presented. The antenna-to-range interface and low-reflection RF environment has been studied through validation measurements. The aim was to quantify the magnitude of the reflections and to find out the source of the reflections. This helped to determine the best...
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