À×´ïÊÇÀûÓÃÎÞÏߵ粨À´²â¶¨ÎïÌåλÖõÄÎÞÏßµçÉ豸£¬Ä¿Ç°À×´ï·¢ÉäµÄµç´Å²¨µÄƵÂʶàÔÚ200 MHzÖÁ1000 MHzµÄ·¶Î§ÄÚ£®

(1)ÏÂÁйØÓÚÀ×´ïµÄ˵·¨ÖÐÕýÈ·µÄÊÇ(¡¡¡¡)

A£®Õæ¿ÕÖÐÉÏÊöÀ×´ï·¢ÉäµÄµç´Å²¨µÄ²¨³¤·¶Î§ÔÚ0.3 mÖÁ1.5 mÖ®¼ä

B£®µç´Å²¨ÊÇÓɺ㶨²»±äµÄµç³¡»ò´Å³¡²úÉúµÄ

C£®²â³ö´Ó·¢Éäµç´Å²¨µ½½ÓÊÕ·´É䲨µÄʱ¼ä¼ä¸ô¿ÉÒÔÈ·¶¨À×´ïºÍÄ¿±êµÄ¾àÀë

D£®²¨³¤Ô½¶ÌµÄµç´Å²¨£¬·´ÉäÐÔÄÜԽǿ

(2)ÉèÀ×´ïÏòÔ¶´¦·¢ÉäÎÞÏߵ粨£®Ã¿´Î·¢ÉäµÄʱ¼äÊÇ1 ¦Ìs£¬Á½´Î·¢ÉäµÄʱ¼ä¼ä¸ôΪ100 ¦Ìs.ÏÔʾÆ÷ÉϳÊÏÖ³öµÄ¼âÐβ¨ÈçͼK51£­5Ëùʾ£¬ÒÑ֪ͼÖÐab£½bc£¬ÔòÕÏ°­ÎïÓëÀ×´ïÖ®¼äµÄ¾àÀëÊǶà´ó£¿

ͼK51£­5

 (1)ACD¡¡(2)7.5¡Á103 m¡¡[½âÎö] (1)¸ù¾Ý¦Ë£½£¬ÔÚ200 MHzÖÁ1000 MHzµÄƵÂÊ·¶Î§ÄÚµç´Å²¨µÄ²¨³¤·¶Î§ÔÚ 0.3 mÖÁ1.5 mÖ®¼ä£¬¹ÊAÕýÈ·£®¸ù¾Ýµç´Å³¡ÀíÂÛ£¬±ä»¯µÄµç³¡²úÉú´Å³¡£¬±ä»¯µÄ´Å³¡²úÉúµç³¡£¬¹ÊB´íÎó£®À×´ïÊÇÀûÓõç´Å²¨µÄ·´ÉäÔ­Àí£¬CÕýÈ·£®µç´Å²¨²¨³¤Ô½¶Ì£¬Ô½²»Ò×·¢ÉúÑÜÉ䣬·´ÉäÐÔÄÜÔ½ºÃ£¬DÕýÈ·£®

(2)ÓÉabµÈÓÚbc¿ÉÖª£¬µç´Å²¨´Ó·¢Éäµ½·µ»ØËùÓÃʱ¼äΪ50 ¦Ìs.ÉèÀ×´ïÓëÕÏ°­ÎïÖ®¼äµÄ¾àÀëΪx£¬µç´Å²¨Íù·µµÄʱ¼äΪt£½50 ¦Ìs

ÓÉ2x£½ctµÃ

x£½£½3.0¡Á108¡Á50¡Á10£­6¡Á m£½7.5¡Á103 m.

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

À×´ïÊÇÀûÓÃÎÞÏߵ粨À´²â¶¨ÎïÌåλÖõÄÎÞÏßµçÉ豸£¬Ä¿Ç°À×´ï·¢ÉäµÄµç´Å²¨µÄƵÂʶàÔÚ200MHzÖÁ1000MHzµÄ·¶Î§ÄÚ£®
£¨1£©ÏÂÁйØÓÚÀ×´ïµÄ˵·¨ÖÐÕýÈ·µÄÊÇ
ACD
ACD

A£®Õæ¿ÕÖÐÉÏÊöÀ×´ï·¢ÉäµÄµç´Å²¨µÄ²¨³¤·¶Î§ÔÚ0.3mÖÁ1.5mÖ®¼ä
B£®µç´Å²¨ÊÇÓɺ㶨²»±äµÄµç³¡»ò´Å³¡²úÉúµÄ
C£®²â³ö´Ó·¢Éäµç´Å²¨µ½½ÓÊÕ·´É䲨µÄʱ¼ä¼ä¸ô¿ÉÒÔÈ·¶¨À×´ïºÍÄ¿±êµÄ¾àÀë
D£®²¨³¤Ô½¶ÌµÄµç´Å²¨£¬·´ÉäÐÔÄÜԽǿ
£¨2£©ÉèÀ×´ïÏòÔ¶´¦·¢ÉäÎÞÏߵ粨£®Ã¿´Î·¢ÉäµÄʱ¼äÊÇ1 ¦Ìs£¬Á½´Î·¢ÉäµÄʱ¼ä¼ä¸ôΪ100 ¦Ìs£®ÏÔʾÆ÷ÉϳÊÏÖ³öµÄ¼âÐβ¨ÈçͼËùʾ£¬ÒÑ֪ͼÖÐab=bc£¬ÔòÕÏ°­ÎïÓëÀ×´ïÖ®¼äµÄ¾àÀëÊǶà´ó£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

À×´ïÊÇÀûÓÃÎÞÏߵ粨À´²â¶¨ÎïÌåλÖõÄÉ豸.À×´ïÓÐÒ»¸öÌØÖƵÄÌìÏßÈçͼ1Ëùʾ£¬ËüÄÜÏòÒ»¶¨µÄ·½Ïò·¢Éä²»Á¬ÐøµÄÎÞÏߵ粨£¬Éèÿ´Î·¢ÉäµÄʱ¼äΪ10-6 s£¬Á½´Î·¢ÉäµÄʱ¼ä¼ä¸ôΪ10-4 s£¬ÕâÑù·¢Éä³öÈ¥µÄÎÞÏߵ粨ÔÚÓöµ½ÕÏ°­Îïʱ£¬¿ÉÒÔÔÚÕâ¸öʱ¼äÄÚ·´Éä»ØÀ´±»ÌìÏß½ÓÊÕ.

(1)À×´ïÊÇÀûÓÃÄĸö²¨¶ÎµÄÎÞÏߵ粨¹¤×÷µÄ£¿ÎªÊ²Ã´£¿

(2)ijʱ¿ÌÀ×´ï̽²âµ½µÐ·½·É»úʱ£¬À×´ïÏÔʾÆ÷ÏÔʾµÄ²¨ÐÎÈçͼ2Ëùʾ£¬ÊԾݴËÇó³öµÐ»ú¾àÀëÀ×´ïµÄÖ±Ïß¾àÀë.

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

À×´ïÊÇÀûÓÃÎÞÏߵ粨À´²â¶¨ÎïÌåλÖõÄÎÞÏßµçÉ豸£¬Ä¿Ç°À×´ï·¢ÉäµÄµç´Å²¨µÄƵÂÊ

¶àÔÚ200 MHzÖÁ1000 MHzµÄ·¶Î§ÄÚ£®

(1)ÏÂÁйØÓÚÀ×´ïµÄ˵·¨ÖÐÕýÈ·µÄÊÇ                               (¡¡¡¡)

A£®Õæ¿ÕÖÐÉÏÊöÀ×´ï·¢ÉäµÄµç´Å²¨µÄ²¨³¤·¶Î§ÔÚ0.3 mÖÁ1.5 mÖ®¼ä

B£®µç´Å²¨ÊÇÓɺ㶨²»±äµÄµç³¡»ò´Å³¡²úÉúµÄ

C£®²â³ö´Ó·¢Éäµç´Å²¨µ½½ÓÊÕ·´É䲨µÄʱ¼ä¼ä¸ô¿ÉÒÔÈ·¶¨À×´ïºÍÄ¿±êµÄ¾àÀë

D£®²¨³¤Ô½¶ÌµÄµç´Å²¨£¬·´ÉäÐÔÄÜԽǿ

(2)ÉèÀ×´ïÏòÔ¶´¦·¢ÉäÎÞÏߵ粨£®Ã¿´Î·¢ÉäµÄʱ¼äÊÇ1 ¦Ìs£¬Á½´Î

·¢ÉäµÄʱ¼ä¼ä¸ôΪ100 ¦Ìs.ÏÔʾÆ÷ÉϳÊÏÖ³öµÄ¼âÐβ¨Èçͼ

Ëùʾ£¬ÒÑ֪ͼÖÐab£½bc£¬ÔòÕÏ°­ÎïÓëÀ×´ïÖ®¼äµÄ¾à

ÀëÊǶà´ó£¿

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÈ˽̰æ¸ßÈýÎïÀíµç´Å²¨Ïà¶ÔÂÛרÏîѵÁ·.doc ÌâÐÍ£ºµ¥Ñ¡Ìâ

À×´ïÊÇÀûÓÃÎÞÏߵ粨À´²â¶¨ÎïÌåλÖõÄÎÞÏßµçÉ豸£¬Ä¿Ç°À×´ï·¢ÉäµÄµç´Å²¨µÄƵÂÊ

¶àÔÚ200 MHzÖÁ1000 MHzµÄ·¶Î§ÄÚ£®
(1)ÏÂÁйØÓÚÀ×´ïµÄ˵·¨ÖÐÕýÈ·µÄÊÇ                                (¡¡¡¡)

A£®Õæ¿ÕÖÐÉÏÊöÀ×´ï·¢ÉäµÄµç´Å²¨µÄ²¨³¤·¶Î§ÔÚ0.3 mÖÁ1.5 mÖ®¼ä
B£®µç´Å²¨ÊÇÓɺ㶨²»±äµÄµç³¡»ò´Å³¡²úÉúµÄ
C£®²â³ö´Ó·¢Éäµç´Å²¨µ½½ÓÊÕ·´É䲨µÄʱ¼ä¼ä¸ô¿ÉÒÔÈ·¶¨À×´ïºÍÄ¿±êµÄ¾àÀë
D£®²¨³¤Ô½¶ÌµÄµç´Å²¨£¬·´ÉäÐÔÄÜԽǿ
(2)ÉèÀ×´ïÏòÔ¶´¦·¢ÉäÎÞÏߵ粨£®Ã¿´Î·¢ÉäµÄʱ¼äÊÇ1 ¦Ìs£¬Á½´Î
·¢ÉäµÄʱ¼ä¼ä¸ôΪ100 ¦Ìs.ÏÔʾÆ÷ÉϳÊÏÖ³öµÄ¼âÐβ¨Èçͼ
Ëùʾ£¬ÒÑ֪ͼÖÐab£½bc£¬ÔòÕÏ°­ÎïÓëÀ×´ïÖ®¼äµÄ¾à
ÀëÊǶà´ó£¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸