涓叴鍚堜綔鍗曚綅鎶�鑳借璇佽�冭瘯璇曢绀轰緥
锛堝垵绾э級
涓�銆?/p>
鍗曢�夐锛?/p>
9
棰橈級
1.WCDMA
缃戠粶瑙勫垝鏃讹紝
鍋囧畾缃戠粶寤烘垚鍚庝笂琛岃礋鑽蜂负
50%
锛?/p>
鍒欒绠椾笂琛屾渶澶у厑璁歌矾寰勬崯鑰楁椂锛?/p>
闇�瑕侀鐣欑殑骞叉壈浣欓噺涓猴細
A
锛?/p>
3dB
锛?/p>
B.4dB C.5dB. D.6dB
绛旀锛?/p>
A
2
锛庣粡鍏镐紶鎾ā鍨嬩腑
瀹炵敤浜?/p>
150-1500 MHz
瀹忚渹绐濋娴嬶紝
閫?
鐢?
浜?
800-2000MHz
鍩庡尯銆佸瘑闆嗗競鍖虹幆澧冮娴嬶紱
閫傜敤浜?/p>
1500-2000 MHz
瀹忚渹绐濋娴嬨�?/p>
锛?/p>
A
锛?/p>
A.
Okumura-Hata
銆?/p>
Walfish-Ikegami
銆?/p>
Cost231-Hata
锛?/p>
B.
Cost231-Hata
銆?/p>
Walfish-Ikegami
銆?/p>
Okumura-Hata
锛?/p>
C.
Walfish-Ikegam
銆?/p>
Okumura-Hata
銆?/p>
Cost231-Hata
銆?/p>
3
锛庢甯告儏鍐典笅锛屽ぉ棣堢郴缁熼┗娉㈡瘮搴旇鍦ㄤ互涓嬭寖鍥村唴锛?/p>
B
锛?/p>
銆?/p>
A. 0<VSWR<1
B. 1< VSWR<1.5
C. 1< VSWR<2
D. 2< VSWR<3
4
锛庣敱绌洪棿浼犳挱妯″瀷閫傜敤鑼冨洿涓猴紙
A
锛?/p>
銆?/p>
A.
鎺ユ敹鏈轰笌鍙戝皠鏈轰箣闂村瓨鍦ㄧ洿杈捐矾寰勶紝涓旀棤鍙嶅皠璺緞鐨勫満鍚堬紱
B.
甯傚尯锛?/p>
C.
閮婂尯
D
灞卞尯
5
锛庡ぉ绾块殧绂婚渶瑕佽�冭檻浠ヤ笅骞叉壈锛?/p>
D
锛?/p>
銆?/p>
A.
鏉傛暎骞叉壈锛?/p>
B.
浜掕皟骞叉壈锛?/p>
C.
闃诲骞叉壈
D.
浠ヤ笂閮芥槸锛?/p>
6
锛庡叧浜庢棤绾垮熀绔欑珯鍧�閫夋嫨锛屼笉姝ｇ‘鐨勮娉曟槸锛?/p>
B
锛?/p>
銆?/p>
A.
鍩庡尯鍦ㄧ數纾佹尝浼犳挱銆?/p>
绔欏潃閫夋嫨銆?/p>
鍩虹珯闂磋窛绛夋潯浠舵柟闈㈤�氬父浼氭湁鏇村鐨勫埗绾﹀洜绱狅紝
涓�鑸粠鏈�
瀵嗛泦鐨勫煄鍖哄紑濮嬬郴缁熻鍒掑拰绔欏潃閫夋嫨
B.
搴斿敖閲忛�夋嫨鍦ㄩ珮澶勫缓绔欎互杈惧埌骞胯鐩栫洰鐨勶紝鑺傜害缃戠粶寤鸿鎴愭湰
C.
绔欏潃閫夋嫨闇�瑕佷繚璇侀噸鐐瑰尯鍩熺殑瑕嗙洊