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A microstrip slot radiator for local heating of biological tissue operating at 2.45 GHz was designed and tested. The radiator is well matched within a relatively wide range of frequencies (v.s.w.r. < 1.5 for 2.45 ± 0.3 GHz) and provides energy deposition within an area of about 1.5 cm × 1 cm.
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Bahl et al. (1980) studied this question.
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