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1、技術(shù)培訓(xùn)技術(shù)培訓(xùn)euLLeuQQQWWWWWW1112Q2Q2QmaxLmaxemaxu 三三者者之之間間的的關(guān)關(guān)系系為為:外外電電路路所所耗耗散散的的能能量量單單位位弧弧度度內(nèi)內(nèi)被被諧諧振振器器和和諧諧振振器器的的最最大大儲儲能能有有載載耗耗散散的的能能量量單單位位弧弧度度內(nèi)內(nèi)被被外外電電路路所所諧諧振振器器的的最最大大儲儲能能腔腔外外耗耗散散的的能能量量單單位位弧弧度度內(nèi)內(nèi)被被諧諧振振器器所所諧諧振振器器的的最最大大儲儲能能無無載載 技術(shù)培訓(xùn)技術(shù)培訓(xùn)對于高對于高Q Q諧振器,應(yīng)用窄帶近似得:諧振器,應(yīng)用窄帶近似得: 00000000211211fffQjRYfffQjRYLL納:納:有載諧
2、振器電路的總導(dǎo)有載諧振器電路的總導(dǎo):無載諧振器電路的導(dǎo)納無載諧振器電路的導(dǎo)納技術(shù)培訓(xùn)為耦合系數(shù)為耦合系數(shù)、其中,其中,212101xxxxQQL 技術(shù)培訓(xùn) xxxxxfSfffQjxxxxfSL 212100212121212/21112其中,其中,有,有輸出耦合相等的情況下輸出耦合相等的情況下在諧振頻率上,輸入在諧振頻率上,輸入技術(shù)培訓(xùn) 021300210303121fSBWdBffSQxQQBWfQdBLLdBL、插入損耗、插入損耗帶寬帶寬、諧振頻率諧振頻率三個(gè)關(guān)鍵的測試參量:三個(gè)關(guān)鍵的測試參量: 技術(shù)培訓(xùn) 急劇增大。急劇增大。其中,對于小的損耗,其中,對于小的損耗,aaCdBfSCBWB
3、WQQ20212200 寄寄 生生 參參 數(shù)數(shù)措措 施施噪聲噪聲曲線擬合曲線擬合耦合結(jié)構(gòu)的損耗和電抗耦合結(jié)構(gòu)的損耗和電抗融入電路模型融入電路模型傳輸線和接頭損耗傳輸線和接頭損耗融入電路模型融入電路模型輸入輸出的交叉干擾輸入輸出的交叉干擾曲線擬合中的圓圖失真曲線擬合中的圓圖失真 / 融入電路模型融入電路模型傳輸線時(shí)延傳輸線時(shí)延校準(zhǔn)校準(zhǔn) / 相位修正相位修正技術(shù)培訓(xùn) 00000000000000000111:LCRLRGCQCLjQRjXRZee 其中,其中,輸入阻抗為輸入阻抗為技術(shù)培訓(xùn) mmmmmmmmmmmmmmDD 1211221212:00000線性微分因子線性微分因子頻率調(diào)諧參數(shù)頻率調(diào)諧
4、參數(shù)其中,其中,附近,可簡化附近,可簡化在諧振角頻率在諧振角頻率技術(shù)培訓(xùn)技術(shù)培訓(xùn) 212342213443423241314321222144334433212122212121210211242421,2221412121222 ffffffffbffffffffffffffffaDDDDbaabaababxxffffxxQm有有和和,采用,采用為降低測試的隨機(jī)誤差為降低測試的隨機(jī)誤差其中,其中, 技術(shù)培訓(xùn)5.002.001.000.500.205.00-5.002.00-2.001.00-1.000.50-0.500.20-0.200.00-0.0001020304050607080901
5、00110120130140150160170180-170-160-150-140-130-120-110-100-90-80-70-60-50-40-30-20-10Ansoft CorporationHFSSDesign1Smith Plot 1S(WavePort1,WavePort1)Setup1 : Sweep1a=35mm gap=1mm h=50mm hp=-1.0000000000000S(WavePort1,WavePort1)Setup1 : Sweep1a=35mm gap=1mm h=50mm hp=-1.0000000000000S(WavePort1,WavePo
6、rt1)Setup1 : Sweep1a=35mm gap=1mm h=50mm hp=-1.0000000000000S(WavePort1,WavePort1)Setup1 : Sweep1a=35mm gap=1mm h=50mm hp=-1.0000000000000隨著探針的長度的增加,隨著探針的長度的增加,S S1111的圓圖軌跡半徑逐漸增大的圓圖軌跡半徑逐漸增大技術(shù)培訓(xùn)-5-2-1-0.50.512500.20.512511 of 1 (Max)Pwr -2.5 dBm Ch1Center 1.8715 GHzSpan 100 MHzTrc1Mem2Trc1Mem3Trc1Mem
7、4Trc1S11S11S11S11InvSmithInvSmithInvSmithInvSmithRef 1 U Ref 1 U Ref 1 U Ref 1 U Cal SmoSmoSmoSmoM 2 1.873428 GHz 234.55 j3.3338 283.22 S mS fFS11M 2M 2M 2M 22 / 2 5 / 2 0 0 9 , 1 0 :1 1 P M當(dāng)外部耦合非常弱的當(dāng)外部耦合非常弱的情況下,S11導(dǎo)納圓已經(jīng)分辨不出已經(jīng)分辨不出技術(shù)培訓(xùn)腔體尺寸腔體尺寸353535355050,諧振桿,諧振桿1111884949,螺釘,螺釘446.56.5,DINDIN頭,頭,Tap
8、Tap高度高度2525。 Q0 = =3959.583959.58936.36MHz936.36MHzLen(mm)F1(MHz)F2(MHz)F0(MHz)Q0 Q0 %0.5933.881933.643933.763923.120.921933.344933.106933.2253920.840.982934.521934.282934.43909.381.274934.725934.485934.613893.931.668931.84931.59931.7153726.825.88技術(shù)培訓(xùn)腔體尺寸腔體尺寸353535353535,諧振桿,諧振桿1010882929,螺釘,螺釘441 1
9、,DINDIN頭,頭,TapTap高度高度17.517.5。Q Q0 0 = =5467.285467.282010.8MHz2010.8MHzLen(mm)F1(MHz)F2(MHz)F0(MHz)Q0Q0%0.52002.1782001.812001.995440.130.512002.3372001.9682002.155425.810.7622001.6062001.2362001.425409.171.0641997.4181997.0441997.235340.122.3381960.0331959.6511959.845130.46.16技術(shù)培訓(xùn)臨界點(diǎn)法與帶連接器和探針的同軸腔本
10、征模的比較臨界點(diǎn)法與帶連接器和探針的同軸腔本征模的比較Len(mm)臨界點(diǎn)法臨界點(diǎn)法本征模本征模 Q0 %F0(MHz)Q0F0(MHz)Q00.5933.763923.12935.65939290.151933.2253920.84935.77539320.282934.43909.38935.9239280.474934.613893.93935.30938960.058931.7153726.82935.10938021.98技術(shù)培訓(xùn)臨界點(diǎn)法與同軸諧振器外載臨界點(diǎn)法與同軸諧振器外載Q Q值的比較值的比較Len(mm)臨界點(diǎn)法臨界點(diǎn)法外載外載Q值值Q0%F0(MHz)Q0F0(MHz)QL
11、0.5933.763923.12934.71715981933.2253920.84934.71115042934.43909.38934.44412994934.613893.93934.0329028931.7153726.82930.53322技術(shù)培訓(xùn)F1(MHz)F2(MHz)F0(MHz)Q0F0模擬模擬(MHz)Q0模擬模擬Q0/ Q0模擬模擬%1825.8861826.31826.094407.6818805304831800.3121800.731800.524304.1918105196821701.4211701.8791701.653711.517345054731601.4241601.941601.683099.2615944761651500.1551500.7261500.442621.991478449258