Iyo vector network analyzer ine mabasa mazhinji uye inozivikanwa se "mambo wezviridzwa".Iyo multimeter mumunda weredhiyo frequency uye microwave, uye bvunzo midziyo ye electromagnetic wave simba.
Early network analyzers chete akayera amplitude.Aya scalar network analyzer anogona kuyera kurasikirwa kwekudzoka, kuwana, kumira wave ratio, uye kuita mamwe amplitude-based zviyero.Mazuva ano, akawanda network analyzers vector network analyzers, iyo inogona kuyera amplitude uye chikamu panguva imwe chete.Vector network analyzer irudzi rwechiridzwa chinoshandiswa zvakanyanya, chinogona kuratidza S paramita, match yakaoma impedance, uye kuyera munguva domain.
RF maseketi anoda yakasarudzika nzira dzekuyedza.Zvakaoma kuyera voltage uye ikozvino zvakananga mukukwira kwepamusoro, saka kana uchiyera yakakwirira frequency zvishandiso, zvinofanirwa kuratidzwa nemhinduro yavo kumasaini eRF.Iyo network analyzer inogona kutumira iyo inozivikanwa chiratidzo kune mudziyo, uye yobva yayera iyo yekuisa chiratidzo uye inobuda chiratidzo muchiyero chakatarwa kuti uone hunhu hwechishandiso.
Network analyzer inogona kushandiswa kuratidza radio frequency (RF) zvishandiso.Kunyange zvazvo maS parameter chete akayerwa pakutanga, kuitira kuti ave pamusoro pechigadzirwa chiri pasi pekuedzwa, ikozvino network analyzer yakave yakanyatsobatanidzwa uye yakanyanyisa.
Composition block diagram ye network analyzer
Mufananidzo 1 unoratidza iyo yemukati yekuumbwa block diagraph ye network analyzer.Kuti upedze kutapurirana / kuratidza hunhu bvunzo yeyakaedzwa chikamu, network analyzer inosanganisira:;
1. Excitation signal source;Ipa excitation yokupinza chiratidzo chechikamu chakaedzwa
2. Chishandiso chekuparadzanisa chiratidzo, chinosanganisira kupatsanura simba uye chinongedzo chekubatanidza mudziyo, chinoburitsa chinopinza uye chinoratidza zviratidzo zvechikamu chakaedzwa zvakateerana.
3. Receiver;Edza kutarisisa, kutapurirana uye masaini masaini echikamu chakaedzwa.
4. Kugadziridza kuratidza unit;Gadzirisa uye ratidza mhinduro dzebvunzo.
Chimiro chekufambisa ndiyo chiyero chehukama chekubuda kwechikamu chakaedzwa kusvika kune inopinza excitation.Kuti upedze bvunzo iyi, network analyzer inoda kuwana iyo yekuisa yekukurudzira chiratidzo uye inobuda chiratidzo cheruzivo rwechikamu chakaedzwa zvichiteerana.
Iyo yemukati chiratidzo sosi yetiweki analyzer ine basa rekugadzira masaini ekusimudzira anosangana neiyo bvunzo frequency uye simba rinodiwa.Kubuda kweiyo sosi yechiratidzo yakakamurwa kuita masaini maviri kuburikidza nemagetsi divider, imwe yacho inopinda zvakananga muR inogamuchira, uye imwe inoiswa kune inoenderana bvunzo port yechikamu chakaedzwa kuburikidza nekuchinja.Naizvozvo, iyo R inogamuchira bvunzo inowana yakayerwa yekupinda chiratidzo ruzivo.
Chiratidzo chekubuda chechikamu chakaedzwa chinopinda mugamuchiri B wetiweki analyzer, saka mugamuchiri B anogona kuyedza ruzivo rwechiratidzo chekubuda chechikamu chakaedzwa.B/R ndiyo yemberi yekufambisa hunhu hwechikamu chakaedzwa.Kana iyo reverse bvunzo yapera, switch yemukati yetiweki analyzer inodiwa kudzora kuyerera kwechiratidzo.
Nguva yekutumira: Jan-13-2023