雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)是(shi)一種(zhong)常(chang)(chang)用于(yu)微(wei)波(bo)和毫米波(bo)頻段的(de)(de)(de)無(wu)源器(qi)(qi)(qi)(qi)(qi)件(jian)。它(ta)可以(yi)分(fen)(fen)為(wei)雙(shuang)(shuang)結(jie)(jie)同軸環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)、雙(shuang)(shuang)結(jie)(jie)嵌入(ru)式環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)。也可按端(duan)口(kou)數量分(fen)(fen)為(wei)四端(duan)口(kou)雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)、三(san)端(duan)口(kou)雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)。它(ta)由(you)兩(liang)(liang)個環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)結(jie)(jie)構組合(he)而(er)成。它(ta)的(de)(de)(de)插損與隔(ge)(ge)離(li)(li)度(du)(du)通(tong)常(chang)(chang)是(shi)單個環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)兩(liang)(liang)倍。如果(guo)單個環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)隔(ge)(ge)離(li)(li)度(du)(du)為(wei)20dB的(de)(de)(de)話，雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)隔(ge)(ge)離(li)(li)度(du)(du)往(wang)往(wang)能(neng)做(zuo)到(dao)(dao)40dB。而(er)端(duan)口(kou)駐波(bo)則沒有太多的(de)(de)(de)變化。同軸產品(pin)連(lian)接(jie)(jie)器(qi)(qi)(qi)(qi)(qi)一般為(wei)SMA、N、2.92、L29或DIN類型。嵌入(ru)式產品(pin)則采用帶狀線進(jin)行連(lian)接(jie)(jie)。雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)關(guan)鍵特(te)性之(zhi)一是(shi)隔(ge)(ge)離(li)(li)度(du)(du)，它(ta)反映了輸入(ru)端(duan)口(kou)和輸出端(duan)口(kou)之(zhi)間信號的(de)(de)(de)隔(ge)(ge)離(li)(li)程度(du)(du)。通(tong)常(chang)(chang)，隔(ge)(ge)離(li)(li)度(du)(du)以(yi)（dB）為(wei)單位進(jin)行衡量，高隔(ge)(ge)離(li)(li)度(du)(du)意味著更好的(de)(de)(de)信號隔(ge)(ge)離(li)(li)效果(guo)。雙(shuang)(shuang)結(jie)(jie)環(huan)(huan)形(xing)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)隔(ge)(ge)離(li)(li)度(du)(du)通(tong)常(chang)(chang)可以(yi)達到(dao)(dao)幾十分(fen)(fen)貝(bei)以(yi)上(shang)。低(di)互調耦合(he)器(qi)(qi)(qi)(qi)(qi)設計(ji)精良，能(neng)夠有效地抑(yi)制互調失真，提高系統的(de)(de)(de)線性度(du)(du)和動態范圍。福建功分(fen)(fen)器(qi)(qi)(qi)(qi)(qi)市場(chang)價(jia)

濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器是一種(zhong)可以對電(dian)(dian)(dian)源線中特定(ding)頻(pin)(pin)率(lv)的(de)(de)頻(pin)(pin)點或該頻(pin)(pin)點以外(wai)的(de)(de)頻(pin)(pin)率(lv)進(jin)行(xing)有效濾(lv)(lv)(lv)除的(de)(de)裝置或系統，相當于頻(pin)(pin)率(lv)“篩子”。濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器是由電(dian)(dian)(dian)容、電(dian)(dian)(dian)感(gan)和電(dian)(dian)(dian)阻組成(cheng)(cheng)的(de)(de)濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)電(dian)(dian)(dian)路構成(cheng)(cheng)，可以對信(xin)號(hao)進(jin)行(xing)過濾(lv)(lv)(lv)、篩選。濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器的(de)(de)作用包括:1.將有用的(de)(de)信(xin)號(hao)與噪聲分(fen)(fen)離，提高信(xin)號(hao)的(de)(de)抗干擾性及(ji)信(xin)噪比。2.濾(lv)(lv)(lv)掉不(bu)感(gan)興(xing)趣的(de)(de)頻(pin)(pin)率(lv)成(cheng)(cheng)分(fen)(fen)，提高分(fen)(fen)析(xi)精度。3.從復雜(za)頻(pin)(pin)率(lv)成(cheng)(cheng)分(fen)(fen)中分(fen)(fen)離出單一的(de)(de)頻(pin)(pin)率(lv)分(fen)(fen)量(liang)。濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器按照物(wu)理原理分(fen)(fen)為機械式和電(dian)(dian)(dian)路式，按處(chu)理信(xin)號(hao)分(fen)(fen)為模(mo)擬濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器和數字濾(lv)(lv)(lv)波(bo)(bo)(bo)(bo)器。安(an)徽貼片(pian)隔(ge)離器市場價波(bo)(bo)(bo)(bo)導隔(ge)離器耐高功率(lv)，適用于高功率(lv)應用。

微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi)選(xuan)用(yong)(yong)(yong)原則共三(san)點(dian)：在(zai)電(dian)路(lu)之(zhi)間(jian)起去耦(ou)、匹配作(zuo)用(yong)(yong)(yong)時，可選(xuan)用(yong)(yong)(yong)微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi);根(gen)據使用(yong)(yong)(yong)的(de)(de)頻率范(fan)圍、安(an)裝尺(chi)寸、傳(chuan)輸方(fang)向(xiang)選(xuan)擇對應(ying)微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi)的(de)(de)產品型號;當兩種尺(chi)寸的(de)(de)微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi)的(de)(de)工作(zuo)頻率都能滿足使用(yong)(yong)(yong)要求時，體積(ji)較大的(de)(de)產品一般功率容量較高(gao)。微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi)電(dian)路(lu)連(lian)接(jie)采用(yong)(yong)(yong)銅(tong)帶(dai)(dai)(dai)(dai)手(shou)工焊接(jie)互連(lian)時，銅(tong)帶(dai)(dai)(dai)(dai)應(ying)制(zhi)作(zuo)成Ω形狀，焊料不(bu)應(ying)浸(jin)潤到銅(tong)帶(dai)(dai)(dai)(dai)成形處，焊接(jie)前應(ying)使隔(ge)(ge)離(li)器(qi)表面溫(wen)度(du)保持(chi)在(zai)60-100°c間(jian)。微帶(dai)(dai)(dai)(dai)隔(ge)(ge)離(li)器(qi)電(dian)路(lu)連(lian)接(jie)采用(yong)(yong)(yong)金(jin)絲鍵合(he)互連(lian)時，金(jin)帶(dai)(dai)(dai)(dai)寬度(du)要小(xiao)于微帶(dai)(dai)(dai)(dai)電(dian)路(lu)寬度(du)，不(bu)允許復合(he)鍵合(he)。

微(wei)(wei)(wei)波無(wu)源(yuan)器(qi)(qi)件(jian)是(shi)微(wei)(wei)(wei)波射頻(pin)(pin)器(qi)(qi)件(jian)中(zhong)的(de)(de)一(yi)(yi)類重要器(qi)(qi)件(jian)，它(ta)們不需要外加電(dian)(dian)源(yuan)就能(neng)顯(xian)示其(qi)特性。主要包括電(dian)(dian)阻(zu)(zu)、電(dian)(dian)容、電(dian)(dian)感(gan)、轉(zhuan)換(huan)(huan)器(qi)(qi)、漸變器(qi)(qi)、匹(pi)配網絡(luo)、諧振器(qi)(qi)、濾波器(qi)(qi)、混頻(pin)(pin)器(qi)(qi)和(he)開關等(deng)(deng)。這些器(qi)(qi)件(jian)在(zai)微(wei)(wei)(wei)波技術中(zhong)占有非常重要的(de)(de)地(di)位(wei)，用(yong)于完(wan)成(cheng)微(wei)(wei)(wei)波信(xin)(xin)號(hao)(hao)(hao)和(he)功(gong)率的(de)(de)分配、控制和(he)濾波等(deng)(deng)功(gong)能(neng)。例如，電(dian)(dian)阻(zu)(zu)器(qi)(qi)的(de)(de)主要用(yong)途是(shi)降壓(ya)、分壓(ya)或分流，在(zai)一(yi)(yi)些特殊電(dian)(dian)路中(zhong)用(yong)作負(fu)載(zai)、反(fan)饋、耦合、隔離(li)等(deng)(deng)。電(dian)(dian)容和(he)電(dian)(dian)感(gan)則用(yong)于形(xing)成(cheng)振蕩電(dian)(dian)路和(he)濾波器(qi)(qi)等(deng)(deng)。轉(zhuan)換(huan)(huan)器(qi)(qi)可以(yi)將一(yi)(yi)種形(xing)式(shi)的(de)(de)微(wei)(wei)(wei)波信(xin)(xin)號(hao)(hao)(hao)轉(zhuan)換(huan)(huan)為(wei)另一(yi)(yi)種形(xing)式(shi)的(de)(de)微(wei)(wei)(wei)波信(xin)(xin)號(hao)(hao)(hao)，例如將電(dian)(dian)壓(ya)或電(dian)(dian)流信(xin)(xin)號(hao)(hao)(hao)轉(zhuan)換(huan)(huan)為(wei)功(gong)率信(xin)(xin)號(hao)(hao)(hao)。此(ci)外，微(wei)(wei)(wei)波無(wu)源(yuan)器(qi)(qi)件(jian)還(huan)可以(yi)分為(wei)傳輸線和(he)天線反(fan)射器(qi)(qi)等(deng)(deng)裝置(zhi)，用(yong)于傳輸微(wei)(wei)(wei)波信(xin)(xin)號(hao)(hao)(hao)和(he)功(gong)率。在(zai)RF/MW系統中(zhong)，無(wu)源(yuan)器(qi)(qi)件(jian)通常與有源(yuan)器(qi)(qi)件(jian)一(yi)(yi)起使用(yong)，以(yi)實現(xian)整個系統的(de)(de)功(gong)能(neng)。濾波器(qi)(qi)作為(wei)一(yi)(yi)種選頻(pin)(pin)裝置(zhi)，是(shi)信(xin)(xin)號(hao)(hao)(hao)處理中(zhong)的(de)(de)一(yi)(yi)個重要概(gai)念。

可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)是(shi)一(yi)種(zhong)用(yong)(yong)于控制信(xin)(xin)號(hao)強(qiang)度(du)(du)的(de)(de)(de)電(dian)子器(qi)(qi)(qi)(qi)(qi)件，它可(ke)(ke)(ke)(ke)以(yi)根據需(xu)要降(jiang)低(di)或增加信(xin)(xin)號(hao)的(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)水平。它通(tong)常被廣泛(fan)應用(yong)(yong)于無(wu)線通(tong)信(xin)(xin)系(xi)統、實(shi)(shi)驗室測量、音(yin)頻(pin)設(she)備和(he)(he)(he)其(qi)他電(dian)子領(ling)域(yu)中。可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)主(zhu)要功(gong)(gong)能(neng)是(shi)通(tong)過(guo)調整信(xin)(xin)號(hao)通(tong)過(guo)的(de)(de)(de)衰(shuai)減(jian)量來(lai)改變信(xin)(xin)號(hao)的(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)。它可(ke)(ke)(ke)(ke)以(yi)將輸(shu)入信(xin)(xin)號(hao)的(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)減(jian)小(xiao)到(dao)所(suo)需(xu)的(de)(de)(de)值，以(yi)適(shi)應不(bu)(bu)同(tong)的(de)(de)(de)應用(yong)(yong)場景。同(tong)時，可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)還能(neng)夠(gou)提(ti)供良好的(de)(de)(de)信(xin)(xin)號(hao)匹配(pei)性能(neng)，使(shi)得輸(shu)出信(xin)(xin)號(hao)的(de)(de)(de)頻(pin)率(lv)(lv)(lv)響應和(he)(he)(he)波形保(bao)持(chi)準確和(he)(he)(he)穩定(ding)。在(zai)實(shi)(shi)際應用(yong)(yong)中，可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)可(ke)(ke)(ke)(ke)以(yi)通(tong)過(guo)手動旋鈕、電(dian)位器(qi)(qi)(qi)(qi)(qi)、開關等(deng)手段來(lai)進行控制，也可(ke)(ke)(ke)(ke)以(yi)通(tong)過(guo)數字接(jie)口(kou)或無(wu)線通(tong)信(xin)(xin)進行遠程控制。這使(shi)得用(yong)(yong)戶可(ke)(ke)(ke)(ke)以(yi)根據需(xu)要實(shi)(shi)時調整信(xin)(xin)號(hao)的(de)(de)(de)強(qiang)度(du)(du)，以(yi)滿足不(bu)(bu)同(tong)的(de)(de)(de)需(xu)求。需(xu)要注意的(de)(de)(de)是(shi)，可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)在(zai)降(jiang)低(di)信(xin)(xin)號(hao)功(gong)(gong)率(lv)(lv)(lv)的(de)(de)(de)同(tong)時，可(ke)(ke)(ke)(ke)能(neng)會引入一(yi)定(ding)程度(du)(du)的(de)(de)(de)插入損耗(hao)和(he)(he)(he)反射損耗(hao)。因此，在(zai)選擇和(he)(he)(he)使(shi)用(yong)(yong)可(ke)(ke)(ke)(ke)調衰(shuai)減(jian)器(qi)(qi)(qi)(qi)(qi)時，需(xu)要綜合(he)考慮衰(shuai)減(jian)范圍、插入損耗(hao)、反射損耗(hao)、工作頻(pin)率(lv)(lv)(lv)范圍和(he)(he)(he)控制精度(du)(du)等(deng)因素。微帶(dai)(dai)隔離器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)電(dian)路可(ke)(ke)(ke)(ke)采用(yong)(yong)銅帶(dai)(dai)手工錫焊的(de)(de)(de)方(fang)法或金絲鍵合(he)的(de)(de)(de)方(fang)法連接(jie)。安徽波導隔離器(qi)(qi)(qi)(qi)(qi)廠(chang)家

構建穩定信號鏈路的關鍵步驟(zou)：選(xuan)擇合適(shi)的衰減套筒(tong)。福建功分器市場價

電(dian)(dian)(dian)(dian)橋(qiao)(qiao)是一種(zhong)由電(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)容、電(dian)(dian)(dian)(dian)感(gan)等(deng)元件(jian)組(zu)成(cheng)的(de)四邊(bian)形(xing)測量電(dian)(dian)(dian)(dian)路(lu)(lu)，通(tong)常用(yong)于比較(jiao)法(fa)測量各種(zhong)量(如電(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)容、電(dian)(dian)(dian)(dian)感(gan)等(deng))。電(dian)(dian)(dian)(dian)橋(qiao)(qiao)的(de)基本(ben)原(yuan)理是通(tong)過調節橋(qiao)(qiao)臂上(shang)(shang)某些(xie)元件(jian)的(de)參(can)數值，使指(zhi)零(ling)(ling)儀器的(de)兩(liang)端電(dian)(dian)(dian)(dian)壓為(wei)零(ling)(ling)，此時電(dian)(dian)(dian)(dian)橋(qiao)(qiao)達到平(ping)(ping)衡(heng)。利用(yong)電(dian)(dian)(dian)(dian)橋(qiao)(qiao)平(ping)(ping)衡(heng)方程Z1Z3=Z2Z4，即可(ke)根據橋(qiao)(qiao)臂中已知元件(jian)的(de)數值求得(de)(de)被(bei)測元件(jian)的(de)參(can)量。電(dian)(dian)(dian)(dian)橋(qiao)(qiao)的(de)簡單形(xing)式是由四個支路(lu)(lu)組(zu)成(cheng)的(de)電(dian)(dian)(dian)(dian)路(lu)(lu)，各支路(lu)(lu)稱為(wei)電(dian)(dian)(dian)(dian)橋(qiao)(qiao)的(de)“臂”。作(zuo)為(wei)測量電(dian)(dian)(dian)(dian)路(lu)(lu)，在四邊(bian)形(xing)的(de)一條對角線兩(liang)端接(jie)上(shang)(shang)電(dian)(dian)(dian)(dian)源，另一條對角線兩(liang)端接(jie)指(zhi)零(ling)(ling)儀器。通(tong)過調節橋(qiao)(qiao)臂上(shang)(shang)電(dian)(dian)(dian)(dian)阻(zu)的(de)值使G中無電(dian)(dian)(dian)(dian)流通(tong)過，則電(dian)(dian)(dian)(dian)橋(qiao)(qiao)平(ping)(ping)衡(heng)，利用(yong)電(dian)(dian)(dian)(dian)橋(qiao)(qiao)平(ping)(ping)衡(heng)方程(即R2xR3=R1xR4)可(ke)得(de)(de)未知電(dian)(dian)(dian)(dian)阻(zu)R2=R1·R4/R3。福建功分(fen)器市場價

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