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PubMed · 2814813

Modification of annular phased array heating pattern.

S Uehara·J Omagari·K Hata
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Abstract

By attaching 8 pairs of opposing Al-flaps, which have an angle of 30 degrees or 60 degrees with E-field direction in annular phased array (APA), on both sides of APA we could enhance the E-field in the pelvic heating center by a factor of 2 to 3 and also could decrease the E-field ratio of neck/pelvic center and ankle/pelvic center more than 50% compared with conventional use without Al-flaps between RF range of 50 and 90 MHz except 70 MHz. But that of pelvic surface/pelvic center was suppressed 30% only when 30 degrees angled 8 Al-flaps used.

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S Uehara, J Omagari, K Hata. 1989. Modification of annular phased array heating pattern.. https://pubmed.ncbi.nlm.nih.gov/2814813/

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