[{"title":"(2个子文件945KB)2.4G-18db和21db无线定向天线高增益详细图纸","children":[{"title":"21DB的电路板天线.jpg <span style='color:#111;'>74.08KB</span>","children":null,"spread":false},{"title":"18db天线制作.doc <span style='color:#111;'>1.10MB</span>","children":null,"spread":false}],"spread":true}]