楂樺鐩�澶╃窔(鑻辨枃锛欻igh gain antenna锛夌浉灏嶄締瑾槸杓诲皠鏂瑰悜涓婃洿鍔犵嫻绐勶紝鍦ㄦ煇浜涙柟鍚戜笂鐨勮蓟灏勮純鐐洪泦涓�锛屾晠鑳介噺闆嗕腑鍒版煇浜涙柟鍚戜笂鍘讳簡锛屾晠楂旂従(xi脿n)鐐烘煇浜涙柟鍚戜笂鐨勫鐩娿��
鍦ㄨ几鍏ュ姛鐜囩浉绛夌殑姊濅欢涓�锛屽闅涘ぉ绶氳垏鐞嗘兂鐨勮蓟灏勫柈鍏冨湪绌洪枔鍚屼竴榛炶檿鎵�鐢�(ch菐n)鐢熺殑淇¤櫉鐨勫姛鐜囧瘑搴︿箣姣斻�傚畠瀹氶噺鍦版弿杩颁竴鍊嬪ぉ绶氭妸杓稿叆鍔熺巼闆嗕腑杓诲皠鐨勭▼搴�銆傚鐩婇’鐒惰垏澶╃窔鏂瑰悜鍦栨湁瀵嗗垏鐨勯棞绯�锛屾柟鍚戝湒涓荤摚瓒婄獎锛屽壇鐡ｈ秺灏忥紝澧炵泭瓒婇珮銆� 鍙互閫欐ǎ渚嗙悊瑙ｅ鐩婄殑鐗╃悊鍚京------鐐哄湪涓�瀹氱殑璺濋洟涓婄殑鏌愰粸铏曠敘(ch菐n)鐢熶竴瀹氬ぇ灏忕殑淇¤櫉锛屽鏋滅敤鐞嗘兂鐨勭劇鏂瑰悜鎬ч粸婧愪綔鐐虹櫦(f膩)灏勫ぉ绶�锛岄渶瑕�100W鐨勮几鍏ュ姛鐜囷紝鑰岀敤澧炵泭鐐� G = 13 dB = 20 鐨勬煇瀹氬悜澶╃窔浣滅偤鐧�(f膩)灏勫ぉ绶氭檪锛岃几鍏ュ姛鐜囧彧闇� 100 / 20 = 5W . 鎻涜█涔�锛屾煇澶╃窔鐨勫鐩婏紝灏卞叾鏈�澶ц蓟灏勬柟鍚戜笂鐨勮蓟灏勬晥鏋滀締瑾�锛岃垏鐒℃柟鍚戞�х殑鐞嗘兂榛炴簮鐩告瘮锛屾妸杓稿叆鍔熺巼鏀惧ぇ鐨勫�嶆暩(sh霉)銆�
鍗婃尝灏嶇ū鎸瓙鐨勫鐩婄偤G = 2.15 dBi ; 4鍊嬪崐娉㈠皪绋辨尟瀛� 娌垮瀭绶氫笂涓嬫帓鍒楋紝妲�(g貌u)鎴愪竴鍊嬪瀭鐩村洓鍏冮櫍锛屽叾澧炵泭绱勭偤G = 8.15 dBi ( dBi閫欏�嬪柈浣嶈〃绀烘瘮杓冨皪璞℃槸鍚勫悜鍧囧嫽杓诲皠鐨勭悊鎯抽粸婧�) 銆� 濡傛灉浠ュ崐娉㈠皪绋辨尟瀛愪綔姣旇純灏嶈薄锛屽墖澧炵泭鐨勫柈浣嶆槸dBd锛� 鍗婃尝灏嶇ū鎸瓙鐨勫鐩婄偤G = 0 dBd (鍥犵偤鏄嚜宸辫窡鑷繁姣旓紝姣斿�肩偤1锛屽彇灏嶆暩(sh霉)寰楅浂鍊�) ; 鍨傜洿鍥涘厓闄�锛屽叾澧炵泭绱勭偤G = 8.15 鈥� 2.15 = 6 dBd銆�
缍韩闆诲瓙閫�锛岄浕瀛愮煡璀橈紝涓�鏌ョ櫨閫�锛�
宸叉敹閷勮姊�153979鍊�
