{"id":208985,"date":"2024-03-21T14:05:16","date_gmt":"2024-03-21T14:05:16","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e5%b8%af%e5%9f%9f%e5%b9%85%e3%81%ae%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e5%bf%9c%e7%94%a8\/"},"modified":"2024-05-17T15:05:12","modified_gmt":"2024-05-17T15:05:12","slug":"%e5%b8%af%e5%9f%9f%e5%b9%85%e3%81%ae%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e5%bf%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e5%b8%af%e5%9f%9f%e5%b9%85%e3%81%ae%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e5%bf%9c%e7%94%a8\/","title":{"rendered":"\u5e2f\u57df\u5e45\u306e\u5f0f | \u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u5fdc\u7528"},"content":{"rendered":"<p class=\"sidekick\">\u5e2f\u57df\u5e45\u3068\u306f\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u5185\u3067\u4fe1\u53f7\u304c\u3069\u308c\u3060\u3051\u4f1d\u9054\u3067\u304d\u308b\u304b\u3092\u793a\u3059\u6307\u6a19\u3067\u3042\u308a\u3001\u901a\u4fe1\u3084\u4fe1\u53f7\u51e6\u7406\u3001\u30d5\u30a3\u30eb\u30bf\u8a2d\u8a08\u306b\u304a\u3044\u3066\u6975\u3081\u3066\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002<\/p>\n<h2>\u5e2f\u57df\u5e45\u306e\u5f0f | \u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u5fdc\u7528<\/h2>\n<p>\u5e2f\u57df\u5e45\u3068\u306f\u3001\u96fb\u6c17\u901a\u4fe1\u304a\u3088\u3073\u4fe1\u53f7\u51e6\u7406\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u5185\u3067\u30c7\u30fc\u30bf\u3084\u4fe1\u53f7\u304c\u3069\u306e\u7a0b\u5ea6\u4f1d\u9054\u3067\u304d\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u5e2f\u57df\u5e45\u306b\u3064\u3044\u3066\u306e\u57fa\u672c\u7684\u306a\u5b9a\u7fa9\u3001\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u3001\u305d\u3057\u3066\u3069\u306e\u3088\u3046\u306b\u5fdc\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5e2f\u57df\u5e45\u306e\u5b9a\u7fa9<\/h2>\n<p>\u5e2f\u57df\u5e45\uff08Bandwidth\uff09\u306f\u3001\u4e00\u822c\u7684\u306b\u4fe1\u53f7\u306e\u5468\u6ce2\u6570\u30b9\u30da\u30af\u30c8\u30eb\u5185\u3067\u4f7f\u7528\u3055\u308c\u308b\u7bc4\u56f2\u306e\u5e83\u3055\u3092\u6307\u3057\u307e\u3059\u3002\u7269\u7406\u7684\u306b\u306f\u3001\u3042\u308b\u30b7\u30b9\u30c6\u30e0\u304c\u6709\u52b9\u306b\u4f1d\u9001\u3067\u304d\u308b\u6700\u5927\u5468\u6ce2\u6570\u3068\u6700\u5c0f\u5468\u6ce2\u6570\u306e\u5dee\u3067\u3059\u3002\u3053\u308c\u3092\u6570\u5f0f\u3067\u8868\u73fe\u3059\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n<pre>\n\\[ B = f_{\\text{max}} - f_{\\text{min}} \\]\n<\/pre>\n<p>\u3053\u3053\u3067\u3001<i>B<\/i> \u306f\u5e2f\u57df\u5e45\u3001<i>f<sub>max<\/sub><\/i> \u306f\u6700\u5927\u5468\u6ce2\u6570\u3001<i>f<sub>min<\/sub><\/i> \u306f\u6700\u5c0f\u5468\u6ce2\u6570\u3067\u3059\u3002<\/p>\n<h2>\u5e2f\u57df\u5e45\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u5177\u4f53\u7684\u306a\u4f8b\u3092\u4f7f\u3063\u3066\u5e2f\u57df\u5e45\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u3042\u308b\u4fe1\u53f7\u304c0.1MHz\u304b\u308910MHz\u307e\u3067\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u3092\u6301\u3064\u3068\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u306e\u5e2f\u57df\u5e45\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<pre>\n\\[ B = 10\\,\\text{MHz} - 0.1\\,\\text{MHz} = 9.9\\,\\text{MHz} \\]\n<\/pre>\n<p>\u307e\u305f\u3001\u30d5\u30a3\u30eb\u30bf\u3084\u901a\u4fe1\u56de\u7dda\u306e\u5e2f\u57df\u5e45\u3092\u8a08\u7b97\u3059\u308b\u969b\u306b\u3082\u540c\u69d8\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5b9f\u969b\u306e\u5fdc\u7528\u306b\u304a\u3044\u3066\u306f\u3001\u30ce\u30a4\u30ba\u3084\u4ed6\u306e\u5236\u7d04\u6761\u4ef6\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\u5e2f\u57df\u5e45\u306e\u5fdc\u7528<\/h2>\n<p>\u5e2f\u57df\u5e45\u306f\u3055\u307e\u3056\u307e\u306a\u9818\u57df\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u306e\u4e3b\u306a\u5fdc\u7528\u3092\u6319\u3052\u307e\u3059\uff1a<\/p>\n<h3>1. \u901a\u4fe1\u30b7\u30b9\u30c6\u30e0<\/h3>\n<p>\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5e2f\u57df\u5e45\u304c\u5e83\u3051\u308c\u3070\u5e83\u3044\u307b\u3069\u3001\u30c7\u30fc\u30bf\u4f1d\u9001\u901f\u5ea6\u304c\u901f\u304f\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u30015G\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u5f93\u6765\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u6bd4\u3079\u3066\u975e\u5e38\u306b\u5e83\u3044\u5e2f\u57df\u5e45\u3092\u6301\u3064\u305f\u3081\u3001\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u901a\u4fe1\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h3>2. \u4fe1\u53f7\u51e6\u7406<\/h3>\n<p>\u4fe1\u53f7\u51e6\u7406\u306b\u304a\u3044\u3066\u3082\u3001\u5e2f\u57df\u5e45\u306f\u91cd\u8981\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u97f3\u58f0\u4fe1\u53f7\u3084\u6620\u50cf\u4fe1\u53f7\u306a\u3069\u306e\u51e6\u7406\u306b\u304a\u3044\u3066\u3001\u9069\u5207\u306a\u5e2f\u57df\u5e45\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30ce\u30a4\u30ba\u3084\u6b6a\u307f\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>3. \u30d5\u30a3\u30eb\u30bf\u8a2d\u8a08<\/h3>\n<p>\u30d5\u30a3\u30eb\u30bf\u8a2d\u8a08\u3067\u306f\u3001\u7279\u5b9a\u306e\u5e2f\u57df\u5e45\u3092\u901a\u904e\u3055\u305b\u308b\u305f\u3081\u306e\u30d5\u30a3\u30eb\u30bf\u304c\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u30d0\u30f3\u30c9\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3001\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u3001\u30cf\u30a4\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u306a\u3069\u304c\u305d\u306e\u5178\u578b\u4f8b\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u30d5\u30a3\u30eb\u30bf\u306f\u7279\u5b9a\u306e\u5e2f\u57df\u5e45\u3092\u6301\u3061\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u5185\u306e\u4fe1\u53f7\u3092\u901a\u904e\u3055\u305b\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u5e2f\u57df\u5e45\u306f\u3001\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3084\u4fe1\u53f7\u51e6\u7406\u3001\u30d5\u30a3\u30eb\u30bf\u8a2d\u8a08\u306a\u3069\u3001\u5e45\u5e83\u3044\u5206\u91ce\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5b9a\u7fa9\u304b\u3089\u8a08\u7b97\u65b9\u6cd5\u3001\u305d\u3057\u3066\u5fdc\u7528\u307e\u3067\u3001\u57fa\u672c\u7684\u306a\u77e5\u8b58\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u69d8\u3005\u306a\u6280\u8853\u7684\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u7406\u89e3\u304c\u6df1\u307e\u308b\u3067\u3057\u3087\u3046\u3002\u521d\u5fc3\u8005\u3067\u3082\u7406\u89e3\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u3001\u57fa\u672c\u7684\u306a\u5b9a\u7fa9\u3068\u7c21\u5358\u306a\u8a08\u7b97\u4f8b\u3092\u542b\u3081\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u77e5\u8b58\u3092\u57fa\u306b\u3001\u3055\u3089\u306b\u8208\u5473\u3092\u6301\u3063\u3066\u5b66\u3073\u3092\u9032\u3081\u3066\u3044\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5e2f\u57df\u5e45\u3068\u306f\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u5185\u3067\u4fe1\u53f7\u304c\u3069\u308c\u3060\u3051\u4f1d\u9054\u3067\u304d\u308b\u304b\u3092\u793a\u3059\u6307\u6a19\u3067\u3042\u308a\u3001\u901a\u4fe1\u3084\u4fe1\u53f7\u51e6\u7406\u3001\u30d5\u30a3\u30eb\u30bf\u8a2d\u8a08\u306b\u304a\u3044\u3066\u6975\u3081\u3066\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[96],"tags":[97],"class_list":["post-208985","post","type-post","status-publish","format-standard","hentry","category-96","tag-97","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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