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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

楂樺鐩婂ぉ绶�
闁辫畝锛�1408鏅�(sh铆)闁擄細2020-11-02 17:32:03

楂樺鐩�澶╃窔(鑻辨枃锛欻igh gain antenna锛夌浉灏�(du矛)渚�(l谩i)瑾�(shu艒)鏄蓟灏勬柟鍚戜笂鏇村姞鐙圭獎锛屽湪鏌愪簺鏂瑰悜涓婄殑杓诲皠杓冪偤闆嗕腑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�銆�

澧炵泭

鍦ㄨ几鍏ュ姛鐜囩浉绛夌殑姊濅欢涓�锛屽(sh铆)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�(di菐n)铏曟墍鐢�(ch菐n)鐢熺殑淇¤櫉(h脿o)鐨勫姛鐜囧瘑搴︿箣姣�銆傚畠瀹氶噺鍦版弿杩颁竴鍊�(g猫)澶╃窔鎶婅几鍏ュ姛鐜囬泦涓蓟灏勭殑绋嬪害銆傚鐩婇’鐒惰垏澶╃窔鏂瑰悜鍦栨湁瀵嗗垏鐨勯棞(gu膩n)绯�锛屾柟鍚戝湒涓荤摚瓒婄獎锛屽壇鐡ｈ秺灏�锛屽鐩婅秺楂�銆� 鍙互閫欐ǎ渚�(l谩i)鐞嗚В澧炵泭鐨勭墿鐞嗗惈缇�------鐐哄湪涓�瀹氱殑璺濋洟涓婄殑鏌愰粸(di菐n)铏曠敘(ch菐n)鐢熶竴瀹氬ぇ灏忕殑淇¤櫉(h脿o)锛屽鏋滅敤鐞嗘兂鐨勭劇(w煤)鏂瑰悜鎬ч粸(di菐n)婧愪綔鐐虹櫦(f膩)灏勫ぉ绶�锛岄渶瑕�100W鐨勮几鍏ュ姛鐜�锛岃�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(sh铆)锛岃几鍏ュ姛鐜囧彧闇� 100 / 20 = 5W . 鎻涜█涔嬶紝鏌愬ぉ绶氱殑澧炵泭锛屽氨鍏舵渶澶ц蓟灏勬柟鍚戜笂鐨勮蓟灏勬晥鏋滀締(l谩i)瑾�(shu艒)锛岃垏鐒�(w煤)鏂瑰悜鎬х殑鐞嗘兂榛�(di菐n)婧愮浉姣�锛屾妸杓稿叆鍔熺巼鏀惧ぇ鐨勫�嶆暩(sh霉)銆�

鍏朵粬淇℃伅

鍗婃尝灏�(du矛)绋辨尟瀛愮殑澧炵泭鐐篏 = 2.15 dBi ; 4鍊�(g猫)鍗婃尝灏�(du矛)绋辨尟瀛� 娌垮瀭绶氫笂涓嬫帓鍒�锛屾(g貌u)鎴愪竴鍊�(g猫)鍨傜洿鍥涘厓闄�锛屽叾澧炵泭绱勭偤G = 8.15 dBi ( dBi閫欏��(g猫)鍠綅琛ㄧず姣旇純灏�(du矛)璞℃槸鍚勫悜鍧囧嫽杓诲皠鐨勭悊鎯抽粸(di菐n)婧�) 銆� 濡傛灉浠ュ崐娉㈠皪(du矛)绋辨尟瀛愪綔姣旇純灏�(du矛)璞★紝鍓囧鐩婄殑鍠綅鏄痙Bd锛� 鍗婃尝灏�(du矛)绋辨尟瀛愮殑澧炵泭鐐篏 = 0 dBd (鍥�?y脿n)妲翰绾︾剨顚︾害缃�?锛屾瘮鍊�?锛屽彇灏�(du矛)鏁�(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�

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宸叉敹閷勮姊�162542鍊�(g猫)