{"id":15276,"date":"2026-06-12T12:00:00","date_gmt":"2026-06-12T03:00:00","guid":{"rendered":"https:\/\/www.ieice.org\/cs\/ap\/?page_id=15276"},"modified":"2026-06-12T06:32:14","modified_gmt":"2026-06-11T21:32:14","slug":"qa","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/odws-1\/qa\/","title":{"rendered":"\u30aa\u30f3\u30c7\u30de\u30f3\u30c9\u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\uff08\u7b2c1\u56de\uff09Q&#038;A"},"content":{"rendered":"<h2>\u8b1b\u5ea7\u5225 Q&amp;A\u4e00\u89a7<\/h2>\n<p><strong>\u3054\u8cea\u554f\u306f\u3053\u306e\u30da\u30fc\u30b8\u306e\u4e00\u756a\u4e0b\u306b\u3042\u308b\u30ea\u30f3\u30af\u304b\u3089\u304a\u9001\u308a\u304f\u3060\u3055\u3044\uff0e<\/strong><br \/><strong>\u8cea\u554f\u6b04\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u56de\u7b54\u306e\u8868\u793a\/\u975e\u8868\u793a\u304c\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\uff0e<\/strong><\/p>\n<div 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class=\"qa-item\">\n<summary>P11\u306e\u84c4\u7a4d\u96fb\u529b\u306b\u3064\u3044\u3066\u8cea\u554f\u306a\u306e\u3067\u3059\u304c\u3001\u30a2\u30f3\u30c6\u30ca\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304f\u306a\u308b\u3068\u84c4\u7a4d\u96fb\u529b\u304c\u5927\u304d\u304f\u306a\u308b\u306e\u306f\u3069\u306e\u3088\u3046\u306b\u7406\u89e3\u3059\u308c\u3070\u826f\u3044\u3067\u3057\u3087\u3046\u304b\uff1f \uff08\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304f\u306a\u308b\u3068\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u6210\u5206\u3082\u5c0f\u3055\u304f\u306a\u308a\u305d\u3046\u306a\u6c17\u304c\u3057\u307e\u3057\u305f\uff09<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u8907\u7d20\u96fb\u529b\u306e\u6709\u52b9\u96fb\u529b\u3068\u7121\u52b9\u96fb\u529b\u306e\u6bd4\u3067\u307f\u3066\uff0c\u7121\u52b9\u96fb\u529b\u304c\u76f8\u5bfe\u7684\u306b\u5927\u304d\u3044\uff0c\u3068\u307f\u3066\u3088\u3044\u3068\u601d\u3044\u307e\u3059\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>GNSS\u885b\u661f\u6e2c\u4f4d\u306b\u8208\u5473\u304c\u3042\u308a\u307e\u3059\u3002\u53d7\u4fe1\u6a5f\u5546\u54c1\u3068\u3057\u3066\u3001\u5e73\u9762\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca\uff08\u591a\u6570\u6d3e\uff09\u3068\u30d8\u30ea\u30ab\u30eb\u304c\u5728\u308a\u307e\u3059\u3002 \u30d8\u30ea\u30ab\u30eb\u30a2\u30f3\u30c6\u30ca\u306e\u5782\u76f4\u65b9\u5411\u306e\u5229\u5f97\u3000\u30b9\u30e9\u30a4\u30c969\u3000\u5929\u9802\u65b9\u5411\u306e\u5229\u5f97\u306f\u4f4e\u3044\u3002 \u3000\u4ef0\u89d2\u304c70\uff5e45\u5ea6\u3067\u306f\u826f\u597d (\u5929\u9802\u309290\u5ea6\u3068\u3057\u305f\u5834\u5408) \u65b9\u5f62MSA\uff08\u30b9\u30e9\u30a4\u30c992\uff09PIFA (\u30b9\u30e9\u30a4\u30c999)\u3067\u306f \u3000\u4ef0\u89d2\u304c\u5e83\u3044\u7bc4\u56f2\u3067\u5229\u5f97\u306f\u6982\u306d\u4e00\u5b9a\u3067\u9ad8\u305d\u3046\u306b\u898b\u3048\u308b\u3002 \u81ea\u52d5\u8eca\u3068\u7570\u306a\u308a\u59ff\u52e2\u304c\u5927\u304d\u304f\u632f\u308c\u308b\u30ed\u30dc\u30c3\u30c8\uff08\u30c9\u30ed\u30fc\u30f3\uff09\u306e\u5834\u5408\u306fGNSS\u53d7\u4fe1\u306b\u3068\u3063\u3066\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca\u304c\u6709\u5229\u3068\u8a00\u3048\u307e\u3059\u3067\u3057\u3087\u3046\u304b\uff1f<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u30d8\u30ea\u30ab\u30eb\u30a2\u30f3\u30c6\u30ca\u306f\u8ef8\u30e2\u30fc\u30c9\u306e\u3088\u3046\u3067\uff0c\u30c9\u30ed\u30fc\u30f3\u306e\u5834\u5408\u306fGNSS\u53d7\u4fe1\u3067\u3042\u308c\u3070\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca\u306e\u307b\u3046\u304c\u5e73\u9762\u30fb\u8584\u578b\u3068\u3044\u3046\u70b9\u3067\u6709\u5229\u3068\u8003\u3048\u307e\u3059\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>\u8ffd\u4f38\u3067\u3059\u3002GNSS\u53d7\u4fe1\u6a5f\u306e\u9ad8\u7d1a\u54c1\u306f2\u5468\u6ce2 (1.2Ghz, 1.5Ghz)\u306b\u79fb\u884c\u3057\u3066\u3044\u308b\u306e\u3067\u4e8c\u7a2e\u306e\u5171\u632f\u5468\u6ce2\u6570\u306e\u30a2\u30f3\u30c6\u30ca\u3092\u540c\u4e00\u7b50\u4f53\u306b\u5b9f\u88c5\u3067\u304d\u308b\u9762\u3067\u8ef8\u65b9\u5411\u30d8\u30ea\u30ab\u30eb\u304c\u6709\u5229\u306a\u306e\u304b\u3068\u3001\u63a8\u6e2c\u3044\u305f\u3057\u307e\u3059\u3002<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u305d\u3046\u3067\u3059\u306d\uff0e2\u5468\u6ce2\u5171\u7528\u3068\u3044\u3046\u70b9\u3067\u306f\u8ef8\u30e2\u30fc\u30c9\u30d8\u30ea\u30ab\u30eb\u304c\u4f5c\u308a\u3084\u3059\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\uff0e\u30d1\u30c3\u30c1\u30a2\u30f3\u30c6\u30ca\u3067\u30822\u5468\u6ce2\u5171\u7528\u306f\u53ef\u80fd\u3067\u3059\u304c\uff0c\u8a2d\u8a08\u304c\u3084\u3084\u96e3\u3057\u3044\u304b\u3082\u77e5\u308c\u307e\u305b\u3093\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>\u653e\u5c04\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u30662\u70b9\u8cea\u554f\u3067\u3059\uff0eMSA\u306f\u975e\u5bfe\u79f0\u306a\u305f\u3081yz\u9762\u3067E\u03b8\u304c\u767a\u751f\u3059\u308b\u3068\u306e\u3053\u3068\u3067\u3057\u305f\u304c\uff0c\u975e\u5bfe\u79f0\u3067\u3059\u3068\u3069\u3046\u3044\u3063\u305f\u539f\u7406\u3067E\u03b8\u304c\u767a\u751f\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff0e\u805e\u304d\u9003\u3057\u3092\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u305f\u3089\uff0c\u5927\u5909\u7533\u3057\u8a33\u3054\u3056\u3044\u307e\u305b\u3093\u304c\uff0c\u3053\u3053\u307e\u3067\u7d39\u4ecb\u3055\u308c\u305f\u5c0f\u578b\u30a2\u30f3\u30c6\u30ca\u306e\u653e\u5c04\u30d1\u30bf\u30fc\u30f3\u3067\uff0cE\u03b8\u307e\u305f\u306fE\u03c6\u304c\u306a\u3044\u3082\u306e\u304c\u3042\u308a\u307e\u3057\u305f\uff0e\u3053\u3061\u3089\u3082\u540c\u3058\u539f\u7406\u3067\u3057\u3087\u3046\u304b\uff0e<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u3059\u307f\u307e\u305b\u3093\uff0cMSA\u306eE\u03b8\u6210\u5206\u306f\uff0c\u975e\u5bfe\u79f0\u306e\u305b\u3044\u3067\u306f\u306a\u304f\uff0ch\u3092\u5927\u304d\u304f\u3057\u305f\u3053\u3068\u306b\u3088\u308b\u30d7\u30ed\u30fc\u30d6\u304b\u3089\u306e\u653e\u5c04\u304c\u5f71\u97ff\u3057\u3066\u3044\u308b\uff0c\u3068\u8003\u3048\u308b\u306e\u304c\u59a5\u5f53\u3067\u3059\uff0e\u4ed6\u306e\u5c0f\u5f62\u30a2\u30f3\u30c6\u30ca\u3067\u306f\uff0cE\u03b8\uff0cE\u03c6\u306e\u3044\u305a\u308c\u304b\u306e\u307f\u653e\u5c04\u3057\u3066\u3044\u308b\u3082\u306e\u306f\uff0c\u96fb\u6d41\u6210\u5206\u3067\u653e\u5c04\u306b\u5bc4\u4e0e\u3059\u308b\u6210\u5206\u3068\u5bc4\u4e0e\u3057\u306a\u3044\u6210\u5206\u304c\u3042\u308a\uff0c\u305d\u306e\u95a2\u4fc2\u3067\u3044\u305a\u308c\u304b\u306e\u307f\u653e\u5c04\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\uff0e\u4f8b\u3048\u3070\uff0cp.9\u3092\u3054\u89a7\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>\u3053\u3053\u3067\u8a00\u3046PIFA\u306f\u9762\u72b6\u96fb\u6975\u306e\u8fba\u306b\u6cbf\u3063\u3066\u30b7\u30e7\u30fc\u30c8\u90e8\u3068\u7d66\u96fb\u3092\u914d\u7f6e\u3057\u305f\u3082\u306e\u3067\u3001\u77ed\u7d61\u578bMSA\u306f\u8fba\u5168\u4f53\u3092\u30b7\u30e7\u30fc\u30c8\u90e8\u3068\u3057\u3066\u9762\u5185\u306b\u7d66\u96fb\u90e8\u3092\u8a2d\u3051\u305f\u3082\u306e\u3092\u6307\u3057\u307e\u3059\u3067\u3057\u3087\u3046\u304b\uff1f<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u306f\u3044\uff0c\u3054\u6307\u6458\u306e\u901a\u308a\u3067\u3059\uff0e\u77ed\u7d61\u578bMSA\u306f\uff0c\u901a\u5e38\u306e\u30b7\u30e7\u30fc\u30c8\u30d1\u30c3\u30c1\u3067\uff0c\u77ed\u7d61\u90e8\u306f\u8fba\u5168\u4f53\u3092\u30b7\u30e7\u30fc\u30c8\u3057\uff0c\u9762\u5185\u306b\u7d66\u96fb\u90e8\u3092\u8a2d\u3051\u305f\u30e2\u30c7\u30eb\u3067\u3059\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>P.9\u3067\u306f\u30b0\u30e9\u30f3\u30c9\u9762\u306e\u96fb\u6d41\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3068\u306e\u3053\u3068\u3067\u3057\u305f\u304c\u3001\u4eca\u56de\u3054\u7d39\u4ecb\u9802\u3044\u305f\u4e8b\u4f8b\u306f\u3059\u3079\u3066\u7121\u9650\u9577\u306e\u30b0\u30e9\u30f3\u30c9\u9762\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u5b9f\u969b\u306e\u8a2d\u8a08\u306b\u3042\u305f\u308a\u3001\u30b0\u30e9\u30f3\u30c9\u9762\u306e\u5927\u304d\u3055\u306f\u3069\u306e\u3088\u3046\u306b\u8003\u616e\u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b?<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u30b0\u30e9\u30f3\u30c9\u9762\u306e\u5927\u304d\u3055\u306f\u901a\u5e38\uff0c\u4e00\u8fba\u304c1\u6ce2\u9577\u7a0b\u5ea6\u306e\u6b63\u65b9\u5f62\u5730\u677f\u307e\u305f\u306f1\u6ce2\u9577\u306e\u534a\u5f84\u3092\u6301\u3064\u5186\u5f62\u5730\u677f\u3092\u4f7f\u7528\u3059\u308c\u3070\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u7279\u6027\u306b\u5bfe\u3057\u3066\u306e\u6e2c\u5b9a\u306f\uff0c\u307b\u307c\u7121\u9650\u5730\u677f\u3068\u540c\u69d8\u306e\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\uff0e\u5730\u677f\u306e\u5927\u304d\u3055\u306b\u5bfe\u3059\u308b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u7279\u6027\u306e\u5909\u5316\u306b\u3064\u3044\u3066\u306f\uff0c\u30a2\u30f3\u30c6\u30ca\u5de5\u5b66\u30cf\u30f3\u30c9\u30d6\u30c3\u30af\u7b2c1\u7248\uff0cpp.51-54\u306b\u8a73\u3057\u304f\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\uff0e\u653e\u5c04\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u306f\uff0c\u7121\u9650\u5730\u677f\u3068\u6709\u9650\u5730\u677f\u3067\u306f\u5927\u304d\u304f\u7570\u306a\u308b\u306e\u3067\uff0c\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u3082\u6709\u9650\u5730\u677f\u306b\u3057\u3066\u89e3\u6790\u3057\uff0c\u5b9f\u6e2c\u3068\u6bd4\u8f03\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff0e<\/span><\/div>\n<div><\/div>\n<\/details><details class=\"qa-item\">\n<summary>\u8907\u5408\u30e2\u30fc\u30c9\u52b1\u632f\u306b\u3088\u308b\u5e83\u5e2f\u57df\u5316\u306e\u9650\u754c\u306f\u7b97\u51fa\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u3000\u30b9\u30e9\u30a4\u30c9p.47\u306b\u3088\u308b\u3068\u3001\u5186\u504f\u6ce2\u306e\u5834\u5408\u306e\u4e0b\u9650Q\u5024\u306f\u76f4\u7dda\u504f\u6ce2\u306e2\u500d\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u30b9\u30e9\u30a4\u30c9p.107\u306b\u3088\u308b\u3068\u3001\u30e2\u30fc\u30c9\u304c2\u306e\u5834\u5408\u306eQ\u5024\u306f\u30011\u306e\u5834\u5408\u3068\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u305b\u3093\u304c\u3001\u8907\u5408\u30e2\u30fc\u30c9\u52b1\u632f\u306e\u5834\u5408\u306f\u3069\u3061\u3089\u306e\u8003\u3048\u65b9\u306b\u8fd1\u3044\u3067\u3057\u3087\u3046\u304b\u3002 \u8907\u5408\u30e2\u30fc\u30c9\u52b1\u632f\u306f\u305d\u308c\u305e\u308c\u306e\u30e2\u30fc\u30c9\u304c\u5bc4\u308a\u6dfb\u3063\u3066\u5e83\u5e2f\u57df\u5316\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u3001\u3046\u307e\u304f\u3044\u3051\u3070\u4e21\u65b9\u306e\u30e2\u30fc\u30c9\u306e\u8db3\u3057\u7b97\u306b\u306a\u308b\u306e\u3067\u306f\u3068\u601d\u3046\u306e\u3067\u3059\u304c\u3001\u3069\u3046\u3044\u3063\u305f\u8003\u3048\u65b9\u3092\u3059\u308c\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/summary>\n<div class=\"qa-a\"><span style=\"color: #993300;\">\u306f\u3044\uff0c\u8907\u5408\u30e2\u30fc\u30c9\u52b1\u632f\u306b\u3088\u308b\u5e83\u5e2f\u57df\u5316\u306e\u9650\u754c\u306f\u7b97\u51fa\u3067\u304d\u307e\u3059\uff0e\u307e\u305f\uff0cp.47\u306e\u5186\u504f\u6ce2\u306e\u5834\u5408\u306e\u4e0b\u9650\uff31\u5024\u3068\u30e2\u30fc\u30c9\u304c2\u306e\u5834\u5408\u306e\uff31\u5024\u306b\u5bfe\u3057\u3066\u306f\uff0c\u8907\u5408\u30e2\u30fc\u30c9\u306e\u5834\u5408\u306f\u5358\u4e00\u5171\u632f\u306b\u5bfe\u3057\u30662.4\u500d\uff08VSWR\u22662\uff09\u306e\u5e2f\u57df\u306b\u306a\u308b\u306e\u3067\uff0c\u30e2\u30fc\u30c9\u304c2\u306e\u5834\u5408\u306b\u8fd1\u3044\u3067\u3059\u304c\uff0cSievenpiper\u306eB\u03b7\u306e\u5f0f\u4e2d\u306en\u306b\u5bfe\u3059\u308b\u5f0f\u3068\u306f\u5408\u308f\u306a\u3044\u3088\u3046\u306b\u601d\u3063\u3066\u3044\u307e\u3059\uff0e<\/span><\/div>\n<\/details>\n<div><\/div>\n<details class=\"qa-item\">\n<summary>\u8b1b\u7fa9\u306e\u307b\u3046\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002\u79c1\u306f\u30a2\u30f3\u30c6\u30ca\u3067\u30df\u30ea\u6ce2(60GHz)\u3092\u53d7\u4fe1\u3057\u3066\u3001\u65b9\u5f62\u30a2\u30f3\u30c6\u30ca\u76f4\u4e0b\u306b\u30ad\u30e3\u30ea\u30a2\u5149\u3092\u901a\u3059\u5c0e\u6ce2\u8def\u3092\u8a2d\u7f6e\u3057\u3066\u3001\u305d\u3053\u306b\u96fb\u754c\u3092\u304b\u3051\u308b\u3053\u3068\u3067\u8d77\u3053\u308b\u5c48\u6298\u7387\u5909\u5316\u3092\u5229\u7528\u3057\u305f\u30a2\u30f3\u30c6\u30ca\u96c6\u7a4d\u578b\u5149\u5909\u8abf\u5668\u306e\u7814\u7a76\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u3088\u308a\u5927\u304d\u306a\u96fb\u754c\u3092\u304b\u3051\u308b\u305f\u3081\u306bE\u5f62\u30a2\u30f3\u30c6\u30ca\u306f\u5229\u7528\u3067\u304d\u307e\u3059\u3067\u3057\u3087\u3046\u304b\u3002<\/summary>\n<div class=\"qa-a\"><span style=\"color: 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