{"id":1510,"date":"2020-08-20T18:53:04","date_gmt":"2020-08-20T09:53:04","guid":{"rendered":"https:\/\/www.iee.jp\/pes\/?p=1510"},"modified":"2020-08-20T18:53:30","modified_gmt":"2020-08-20T09:53:30","slug":"termb_008","status":"publish","type":"post","link":"https:\/\/www.iee.jp\/pes\/termb_008\/","title":{"rendered":"\u7528\u8a9e\u89e3\u8aac\u3000\u7b2c8\u56de\u30c6\u30fc\u30de\uff1a\u3000FDTD\u6cd5"},"content":{"rendered":"

\u99ac\u5834 \u5409\u5f18\uff08\u540c\u5fd7\u793e\u5927\u5b66\uff09<\/p>\n

1. \u6982\u8981<\/h1>\n

FDTD\uff08Finite Difference Time Domain\uff09\u6cd5(1)<\/sup>\u306f\uff0cMaxwell\u65b9\u7a0b\u5f0f\u306e\u78c1\u754cH<\/strong>\u304a\u3088\u3073\u96fb\u754cE<\/strong>\u306b\u95a2\u3059\u308b2 \u3064\u306e\u56de\u8ee2\u306e\u5f0f\uff08\u30a2\u30f3\u30da\u30a2\u306e\u6cd5\u5247\u2207\u00d7H<\/strong> =\u03c3E<\/strong>+\u03b5 \u2202E<\/strong>\/\u2202t\u3068\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u2207\u00d7E<\/strong> = \u2212\u03bc \u2202 H<\/strong>\/\u2202 t\u3002\u305f\u3060\u3057\uff0c\u03c3 \u306f\u5c0e\u96fb\u7387\uff0c\u03b5 \u306f\u8a98\u96fb\u7387\uff0c\u03bc \u306f\u900f\u78c1\u7387\uff09\u3092\u5dee\u5206\u5316\u3057\u3066\u6c42\u3081\u305f\u96fb\u754c\u304a\u3088\u3073\u78c1\u754c\u306e\u66f4\u65b0\u5f0f\u3092\u7528\u3044\u3066\uff0c\u89e3\u6790\u7a7a\u9593\u306e\u96fb\u78c1\u754c\u306e\u6319\u52d5\u3092\u6642\u9593\u9818\u57df\u3067\u8a08\u7b97\u3059\u308b\u624b\u6cd5\u3067\u3042\u308b\u3002\u3053\u306e\u624b\u6cd5\u3092\u7528\u3044\u305f\u89e3\u6790\u306f\u76f4\u4ea4\u5ea7\u6a19\u7cfb\u3067\u884c\u306a\u308f\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\uff0c\u89e3\u6790\u5bfe\u8c61\u306e\u5c0e\u4f53\u7cfb\u3092\u542b\u3080\u5168\u3066\u306e\u89e3\u6790\u7a7a\u9593\u3092\u5fae\u5c0f\u76f4\u65b9\u4f53\u307e\u305f\u306f\u7acb\u65b9\u4f53\uff08\u30bb\u30eb\uff09\u306b\u5206\u5272\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u30bb\u30eb\u306e\u5404\u8fba\u8981\u7d20\u306b\u306f\u96fb\u754c\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\uff0c\u30bb\u30eb\u306e\u5404\u9762\u306e\u4e2d\u5fc3\u306b\u306f\u305d\u308c\u306b\u5782\u76f4\u306a\u78c1\u754c\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3002\u3053\u308c\u306f\uff0c\u56f31\u306b\u793a\u3059\u3088\u3046\u306b\uff0c\u4e92\u3044\u306b1\/2 \u30bb\u30eb\u305a\u3064\u305a\u308c\u305f\u96fb\u754c\u306e3 \u6b21\u5143\u683c\u5b50\u3068\u78c1\u754c\u306e3 \u6b21\u5143\u683c\u5b50\u304c\u5b58\u5728\u3059\u308b\u3082\u306e\u3068\u8003\u3048\u3066\u3082\u3088\u3044\u3002\u3053\u308c\u306b\u3088\u308a\uff0c\u96fb\u754c\u8981\u7d20\u306e\u5468\u56f2\u306b\u306f\u5fc5\u305a\uff08\u9577\u65b9\u5f62\u307e\u305f\u306f\u6b63\u65b9\u5f62\u306e\uff09\u78c1\u754c\u30eb\u30fc\u30d7\u304c\u5b58\u5728\u3057\uff0c\u78c1\u754c\u8981\u7d20\u306e\u5468\u56f2\u306b\u306f\u5fc5\u305a\u96fb\u754c\u30eb\u30fc\u30d7\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308a\uff0c\u4e0a\u8ff0\u306eMaxwell \u65b9\u7a0b\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u306e\u306b\u9069\u3057\u305f\u69cb\u6210\u3068\u306a\u308b\u3002\u539f\u7406\u7684\u306b\u306f\uff0c\u683c\u5b50\u5206\u5272\u3057\u305f\u5404\u30bb\u30eb\u306b\u5bfe\u3057\u3066\u5a92\u8cea\u5b9a\u6570\u3092\u8a2d\u5b9a\u53ef\u80fd\u306a\u305f\u3081\uff0c\u8907\u96d1\u306a\u5883\u754c\u3092\u6709\u3059\u308b\u5c0e\u4f53\u7cfb\u3084\uff0c\u30e2\u30fc\u30e1\u30f3\u30c8\u6cd5\u3067\u306f\u53d6\u6271\u3044\u304c\u56f0\u96e3\u306a\u4f53\u7a4d\u3092\u6709\u3059\u308b\u5c0e\u4f53\u3084\u677f\u72b6\u306e\u5c0e\u4f53\u3082\u5bb9\u6613\u306b\u53d6\u308a\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

\"\"
\n\u56f31\u3000FDTD\u8a08\u7b97\u306b\u304a\u3051\u308b\u96fb\u754c\uff0c\u78c1\u754c\u30bb\u30eb\u306e\u914d\u7f6e<\/p>\n

2. \u78c1\u754c\uff0c\u96fb\u754c\u306e\u8a08\u7b97\u5f0f<\/h1>\n

\u30bb\u30eb\u306ex\uff0cy\uff0cz \u5404\u65b9\u5411\u306e\u8fba\u9577\u3092\u0394x\uff0c\u0394y\uff0c\u0394z\uff0c\u8a08\u7b97\u6642\u9593\u30b9\u30c6\u30c3\u30d7\u5e45\u3092\u0394t \u3068\u3059\u308b\u3068\uff0c\u5ea7\u6a19\uff08i\u0394x, (j+1\/2)\u0394y, (k+1\/2)\u0394z\uff09\uff0c\u6642\u9593 (n+1\/2)\u0394t\u306b\u304a\u3051\u308bx\u65b9\u5411\u306e\u78c1\u754cHx<\/sub>n+1\/2<\/sup> (i, j+1\/2, k+1\/2)\u306f\uff0c\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247<\/p>\n

\"\"<\/p>\n

\u306e\u96fb\u754c\u306e\u7a7a\u9593\u5fae\u5206\u304a\u3088\u3073\u78c1\u754c\u306e\u6642\u9593\u5fae\u5206\u3092\u6b21\u306e\u3088\u3046\u306b\u5dee\u5206\u8fd1\u4f3c\u3059\u308b\u3053\u3068\u3067\u5c0e\u304b\u308c\u308b\u3002<\/p>\n

\"\"<\/p>\n

\u3088\u308a\uff0c<\/p>\n

\"\"<\/p>\n

 <\/p>\n

\u304c\u5f97\u3089\u308c\u308b\u3002\u3053\u306e\u5f0f\u306f\uff0c\u89e3\u6790\u7a7a\u9593\u4e2d\u306e\u4efb\u610f\u306e\u70b9\u306e\u4efb\u610f\u306e\u6642\u9593\u306b\u304a\u3051\u308b\u78c1\u754c\u306e\u5024\u306f\uff0c\u305d\u306e\u70b9\u306e\u0394t \u6642\u9593\u524d\u306e\u78c1\u754c\u306e\u5024\u3068\uff0c\u305d\u306e\u78c1\u754c\u3092\u56f2\u30804 \u3064\u306e\u96fb\u754c\u306e\u0394t\/2 \u6642\u9593\u524d\u306e\u5024\u304b\u3089\u6c42\u3081\u3089\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u4e0a\u8a18\u3068\u540c\u69d8\u306b\u3057\u3066\uff0cy\uff0cz \u65b9\u5411\u306e\u78c1\u754cHy<\/sub>\uff0cHz<\/sub> \u306e\u66f4\u65b0\u5f0f\u3082\u6c42\u3081\u3089\u308c\u308b\u3002\u307e\u305f\uff0c\u30a2\u30f3\u30da\u30a2\u306e\u6cd5\u5247\u306e\u6642\u9593\u5fae\u5206\u304a\u3088\u3073\u7a7a\u9593\u5fae\u5206\u3092\u540c\u69d8\u306b\u5dee\u5206\u5316\u3059\u308b\u3053\u3068\u3067\uff0cx\uff0cy\uff0cz\u5404\u65b9\u5411\u306e\u96fb\u754cEx<\/sub>\uff0cEy<\/sub>\uff0cEz<\/sub> \u306e\u66f4\u65b0\u5f0f\u3082\u6c42\u3081\u3089\u308c\u308b\u3002\u3053\u308c\u3089\u306e\u78c1\u754c\u304a\u3088\u3073\u96fb\u754c\u306e\u66f4\u65b0\u5f0f\u3092\uff0c\u6642\u9593\u7684\u306b\u4ea4\u4e92\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u3067\uff0c\u89e3\u6790\u7a7a\u9593\u5185\u306e\u96fb\u78c1\u754c\u306e\u6319\u52d5\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

3. \u96fb\u529b\u30fb\u30a8\u30cd\u30eb\u30ae\u30fc\u5206\u91ce\u3078\u306e\u5fdc\u7528\u4f8b<\/h1>\n

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 <\/p>\n

\u6587\u732e<\/h1>\n

(1) K. S. Yee\uff1a”Numerical solution of initial boundary value problems involving Maxwell’s equations in isotropic media”, IEEE Trans. on Antenas Propagat.., Vol. 14, No. 3, pp.302-307 (1966)<\/p>\n

(2)\u904e\u6e21\u6570\u5024\u96fb\u78c1\u754c\u89e3\u6790\u624b\u6cd5\u306e\u5fdc\u7528\u8abf\u67fb\u5c02\u9580\u59d4\u54e1\u4f1a\uff1a\u300cFDTD\u6cd5\u3092\u4e2d\u5fc3\u3068\u3057\u305f\u6570\u5024\u96fb\u78c1\u754c\u89e3\u6790\u624b\u6cd5\u306b\u3088\u308b\u30b5\u30fc\u30b8\u89e3\u6790\u306e\u6700\u65b0\u52d5\u5411\u300d\uff0c\u96fb\u6c17\u5b66\u4f1a\u6280\u5831\uff0cNo. 1216 (2011)<\/p>\n

\u3010\u96fb\u6c17\u5b66\u4f1a\u8ad6\u6587\u8a8cB\uff0c131\u5dfb6\u53f7\uff0c2011\u306b\u63b2\u8f09\u3011<\/h3>\n","protected":false},"excerpt":{"rendered":"

\u99ac\u5834 \u5409\u5f18\uff08\u540c\u5fd7\u793e\u5927\u5b66\uff09 1. \u6982\u8981 FDTD\uff08Finite Difference Time Domain\uff09\u6cd5(1)\u306f\uff0cMaxwell\u65b9\u7a0b\u5f0f\u306e\u78c1\u754cH\u304a\u3088\u3073\u96fb\u754cE\u306b\u95a2\u3059\u308b2 \u3064\u306e\u56de\u8ee2\u306e\u5f0f\uff08\u30a2\u30f3\u30da\u30a2\u306e\u6cd5\u5247\u2207\u00d7H =\u03c3E+\u03b5 […]<\/p>\n","protected":false},"author":9,"featured_media":1470,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"\u7528\u8a9e\u89e3\u8aac\u3000\u7b2c8\u56de\u30c6\u30fc\u30de\uff1a\u3000FDTD\u6cd5","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-1510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-event"],"acf":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.iee.jp\/pes\/wp-content\/uploads\/sites\/3\/2020\/08\/term-EC.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pbuf8C-om","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/posts\/1510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/comments?post=1510"}],"version-history":[{"count":5,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/posts\/1510\/revisions"}],"predecessor-version":[{"id":1533,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/posts\/1510\/revisions\/1533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/media\/1470"}],"wp:attachment":[{"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/media?parent=1510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/categories?post=1510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iee.jp\/pes\/wp-json\/wp\/v2\/tags?post=1510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}