微波吸收材料電磁參數(shù)的計(jì)算機(jī)輔助測(cè)量
COMPUTER AIDED MEASUREMENT OF THE ELECTRO- MAGNETIC PARAMETERS FOR THE MICROWACE ABSORBING MATERIALS
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摘要: 微波吸收材料的電磁參數(shù)在評(píng)價(jià)吸收劑性能時(shí)是一個(gè)重要指標(biāo)。參數(shù)重建屬于電磁逆散射問(wèn)題,而傳統(tǒng)的阻抗方法僅利用正好足夠的測(cè)試數(shù)據(jù)來(lái)獲取電磁參數(shù),未能利用冗余數(shù)據(jù)對(duì)材料的電磁性能作綜合評(píng)定。本文介紹結(jié)合網(wǎng)絡(luò)參數(shù)的多點(diǎn)測(cè)量阻抗的優(yōu)化方法,在測(cè)量線上實(shí)現(xiàn)了電磁參數(shù)的自動(dòng)測(cè)量。文中給出了標(biāo)準(zhǔn)樣品和吸收材料的實(shí)測(cè)結(jié)果。Abstract: A novel method involving multiple impedance measurements and optimization algorithm for the reconstruction of electromagnetic parameters is presented. Computer-aided analysis is used in all processes. Experimental results including teflon and some kinds of microwave absorbing materials are given.
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