Ukadaulo wa Microwave wa Sichuan Keenlion——Zosefera
Ukadaulo wa Microwave wa Sichuan Keenlion womwe unayamba mu 2004, Sichuan Keenlion Mircrowave techenology CO., Ltd. ndiye wopanga wamkulu wa zida za Passive Mircrowave ku Sichuan Chengdu, China.
Timapereka zida za mirrowave zogwira ntchito bwino komanso ntchito zina zokhudzana ndi ntchito za microwave kunyumba ndi kunja. Zogulitsazi ndizotsika mtengo, kuphatikizapo zida zosiyanasiyana zogawa mphamvu, zolumikizira zolunjika, zosefera, zophatikiza, zoduplex, zida zosinthira zamagetsi, zosungunulira ndi zozungulira. Zogulitsa zathu zimapangidwa mwapadera kuti zigwirizane ndi malo osiyanasiyana otentha kwambiri. Mafotokozedwe amatha kupangidwa malinga ndi zosowa za makasitomala ndipo amagwiritsidwa ntchito pa ma frequency band onse omwe ali ndi ma bandwidth osiyanasiyana kuyambira DC mpaka 50GHz.
Fyuluta imatha kusefa bwino ma frequency a frequency inayake mu chingwe chamagetsi kapena ma frequency ena osati ma frequency point, kupeza chizindikiro cha gwero lamagetsi cha frequency inayake, kapena kuchotsa chizindikiro cha mphamvu ya frequency inayake.
Chiyambi
Fyuluta ndi chipangizo chosankha chomwe chimalola kuti gawo la ma frequency enieni mu chizindikirocho lidutse, ndipo zigawo zina za ma frequency zimachepetsedwa kwambiri. Zotsatirazi zosankha pogwiritsa ntchito fyuluta zimatha kusefedwa kuchokera ku phokoso losokoneza kapena kuchita kusanthula kwa sipekitiramu. Mwanjira ina, imatchedwa fyuluta yomwe ingayambitse kuti gawo linalake la ma frequency mu chizindikirocho lidutse, ndikuchepetsa kwambiri kapena kuletsa zigawo zina za ma frequency. Fyuluta ndi chipangizo chomwe chimasefedwa ndi mafunde. "Wave" ndi lingaliro lalikulu kwambiri la physical, m'munda wa ukadaulo wamagetsi, "wave" imachepetsedwa pang'ono pa njira yochotsera mtengo wa kuchuluka kwa physical mopyola nthawi. Njirayi imasinthidwa kukhala ntchito ya nthawi ya voltage kapena current kudzera mu kuchuluka kwa physical, kapena ma signals osiyanasiyana. Popeza nthawi yosinthika yokha ndi mtengo wopitilira, imatchedwa chizindikiro cha nthawi chopitilira, ndipo nthawi zambiri imatchedwa chizindikiro cha analog.
Kusefa ndi lingaliro lofunika kwambiri pakupanga ma signali, ndipo ntchito ya sefa ya DC voltage regulator ndikuchepetsa gawo la AC mu DC voltage momwe zingathere, kusunga DC ing'onoing'ono yake, kuti coefficient ya output voltage ripple itsike, ndipo mawonekedwe a waveform akhale Smooth.
Tmagawo akuluakulu:
Mafupipafupi apakati: Mafupipafupi f0 a fyuluta yodutsa, nthawi zambiri amatenga f0 = (f1 + f2) / 2, f1, f2 ngati fyuluta yodutsa kapena fyuluta yokana kumanzere, kumanja moyang'anizana ndi 1 dB kapena 3DB m'mphepete mwa mafupipafupi. Fyuluta yodutsa nthawi zambiri imawerengera bandwidth ya fyuluta yodutsa ndi mfundo yaying'ono kwambiri ya kutayika kwa insertion.
Tsiku lomalizira: Amatanthauza njira yopita ku njira ya passband ya fyuluta yotsika komanso passband ya fyuluta yotsika. Nthawi zambiri imafotokozedwa mu relative loss point ya 1 dB kapena 3DB. Reference reference reference relative loss ndi: low pass imachokera ku DC insertion, ndipo Qualcomm imachokera ku high-pass frequency yokwanira ya parasitic strip.
Bandwidth ya Passband: imatanthauza m'lifupi mwa sipekitiramu yomwe imafunika kuti idutse, BW = (F2-F1). F1, F2 imachokera ku kutayika kwa insertion pa central frequency F0.
Kutayika kwa kuyika: Chifukwa cha kuyambitsidwa kwa fyuluta kumlengalenga wa chizindikiro choyambirira mu dera, kutayika pakati kapena pafupipafupi, monga momwe zimafunikira kuti kutayika konse kwa band kuwonetsedwe.
Kuphulika: Ponena za bandwidth ya 1DB kapena 3DB (mafupipafupi odulidwa), kutayika kwa insert kumasintha peak ya frequency pa loss mean curve.
Kusinthasintha kwamkati: Kutayika kwa kuyika mu gulu lodutsa ndi kusintha kwa ma frequency. Kusinthasintha kwa gulu mu bandwidth ya 1db ndi 1db.
Kuyimirira mkati mwa gulu: Yesani ngati chizindikiro chomwe chili mu passband mu fyuluta chili bwino kuti chigwirizane ndi kufalikira kwa kufalikira. Machezo Oyenera VSWR = 1: 1, VSWR ndi yayikulu kuposa 1 pamene sikugwirizana. Pa fyuluta yeniyeni, bandwidth yomwe imakwaniritsa VSWR ndi yochepera 1.5: 1 nthawi zambiri imakhala yochepera BW3DB, yomwe imawerengera gawo la BW3DB ndi dongosolo la fyuluta ndi kutayika kwa insert.
Kutayika kwa denga: Chiwerengero cha ma decibel (DB) a mphamvu yolowera chizindikiro cha doko ndi mphamvu yowunikira ndi chofanana ndi 20 Log 10ρ, ρ ndi coefficient yowunikira mphamvu yamagetsi. Kutayika kobwerera kumakhala kopanda malire pamene mphamvu yolowera imatengedwa ndi doko.
Kuberekanso kwa kuponderezedwa kwa mzere: chizindikiro chofunikira cha khalidwe la ntchito yosankha fyuluta. Chizindikiro chikakhala chachikulu, chizindikiro chakunja chimachepa kwambiri. Nthawi zambiri pali mitundu iwiri ya malingaliro: njira yochepetsera kuchuluka kwa DB yoletsa fs yolumikizidwa ndi band, njira yowerengera ndi FS decrease; chizindikiro china cha malingaliro a symbol filter threading ndi njira yoyenera ya rectangle - Rectangular coefficient (KXDB ndi yayikulu kuposa 1), KXDB = BWXDB / BW3DB, (X ikhoza kukhala 40dB, 30dB, 20DB, ndi zina zotero). Rectangles zambiri, rectangleity imakwera - ndiko kuti, kuyandikira kwa mtengo woyenera 1, ndipo zovuta zopangira kupanga zimakhala zazikulu.
Kuchedwa: Chizindikirocho chimatanthauza nthawi yofunikira kuti chizindikirocho chitumize ma frequency a diagonal function a gawo, ndiko kuti, TD = DF / DV.
Mzere wa gawo la mkati mwa gulu: Fyuluta yofotokozera zizindikiro iyi ndi kusokoneza gawo la chizindikiro chotumizidwa mu passband. Fyuluta yopangidwa ndi ntchito ya linear phase response ili ndi phase linearity yabwino.
Gulu lalikulu
Yogawidwa mu fyuluta ya analogi ndi fyuluta ya digito malinga ndi chizindikiro chomwe chikukonzedwa.
Njira yodutsa fyuluta yodutsa imagawidwa m'njira ziwiri: low pass, high pass, bandpass, ndi all-pass.
Fyuluta yotsika mtengo:imalola kuti zigawo za ma frequency otsika kapena DC mu chizindikirocho zidutse, kuletsa zigawo za ma frequency apamwamba kapena kusokoneza ndi phokoso;
Fyuluta yodutsa kwambiri: imalola kuti zigawo za pafupipafupi kwambiri mu chizindikirocho zidutse, kuletsa ma frequency otsika kapena zigawo za DC;
Fyuluta ya Band Pass: Zimalola kuti zizindikiro ziperekedwe, zizindikiro zichotsedwe, kusokoneza, ndi phokoso pansi kapena pamwamba pa gulu;
Fyuluta yokhazikika: Imaletsa zizindikiro mkati mwa gulu linalake la ma frequency, imalola zizindikiro zina kupatula gulu, zomwe zimadziwikanso kuti fyuluta ya notch.
Fyuluta yodutsa zonse: Fyuluta yodutsa yonse imatanthauza kuti kukula kwa chizindikiro sikungasinthe mkati mwa kuchuluka konse, ndiko kuti, kuchuluka kwa kukula kwa kuchuluka konse ndi kofanana ndi 1. Zosefera zonse zodutsa zonse zimagwiritsidwa ntchito pa gawo, ndiko kuti, gawo la kusintha kwa chizindikiro cholowera, ndipo chabwino ndichakuti kusintha kwa gawo kukhale kofanana ndi pafupipafupi, komwe kuli kofanana ndi dongosolo lochedwetsa nthawi.
Zigawo zonse ziwiri zomwe zimagwiritsidwa ntchito ndi zosefera zopanda ntchito komanso zogwira ntchito.
Kutengera ndi malo a fyuluta, nthawi zambiri imagawidwa mu fyuluta ya mbale ndi fyuluta ya panel.
Pa bolodi, ikani pa bolodi, monga PLB, fyuluta ya mndandanda wa JLB. Ubwino wa fyuluta iyi ndi wotsika mtengo, ndipo vuto lake ndilakuti kusefa pafupipafupi sikwabwino. Chifukwa chake chachikulu ndi ichi:
1. Palibe kusiyana pakati pa zolowetsa ndi zotuluka za fyuluta, zomwe zimakhala zosavuta kulumikizana;
2, kutsekeka kwa fyuluta sikutsika kwambiri, kumachepetsa mphamvu ya overpass ya ma frequency apamwamba;
3, kulumikizana pakati pa fyuluta ndi chassis kudzabweretsa zotsatira ziwiri zoyipa: chimodzi ndi kusokoneza kwa maginito kwa malo amkati mwa chassis, komwe kumayendetsedwa mwachindunji ku mzerewu, motsatira chingwe, ndikutulutsa fyulutayo pogwiritsa ntchito kuwala kwa chingwe. Kulephera; china ndichakuti kusokoneza kwakunja kumasefedwa ndi fyuluta ya fyuluta pa bolodi, kapena kuwalako kumapangidwa mwachindunji kapena mwachindunji ku dera lomwe lili pa bolodi la circuit, zomwe zimapangitsa kuti pakhale mavuto okhudzana ndi kukhudzidwa;
Ma filter array plates, zolumikizira zosefera ndi zosefera zina nthawi zambiri zimayikidwa pa chitsulo cha chassis choteteza. Popeza chimayikidwa mwachindunji pa chitsulo, zolowetsa ndi zotuluka za fyuluta zimachotsedwa kwathunthu, nthaka imakhala pansi bwino, ndipo kusokoneza kwa chingwe kumasefedwa pamwamba pa doko la chassis, kotero zotsatira zosefera ndizabwino kwambiri.
Fyuluta yosagwira ntchito ndi dera losefera lomwe limagwiritsa ntchito resistor, reactor, ndi capacitor. Pamene ma resonant frequency, circuit impedance value ndi yochepa, ndipo circuit impedance ndi yayikulu, dera losefera limasinthidwa kukhala feature harmonic frequency, ndipo harmonic current imatha kusefedwa; pamene ma harmonic frequency angapo. Dongosolo losinthira limapangidwa, ndiye kuti feature harmonic frequency yofanana imatha kusefedwa, ndipo kusefa main number harmonic (3, 5, 7) kumachitika ndi low impedance bypass. Mfundo yaikulu ndi ya ma harmonic osiyanasiyana, kupanga ma harmonic frequency ndi kochepa, kukwaniritsa kugawanika kwa harmonic current, kupereka njira yodutsa ma harmonic apamwamba omwe adasefedwa kale kuti akwaniritse mafunde oyeretsedwa.
Zosefera zongogwira ntchito zingagawidwe m'ma filter otha kugwira ntchito, ma filter a power plant, ma filter a L-RC, ma filter a RC ooneka ngati π, ma filter a RC okhala ndi magawo ambiri, ndi ma filter a LC okhala ngati π. Dinani kuti mugwire ntchito mu filter imodzi yokonza, filter yokonza zinthu ziwiri, ndi filter yodutsa kwambiri. Fyuluta yongogwira ntchito ili ndi ubwino wotsatira: kapangidwe kake ndi kosavuta, mtengo wogulira ndalama ndi wotsika, ndipo gawo lochitapo kanthu mu dongosolo lingathe kulipira mphamvu mu dongosolo. Limawongolera mphamvu ya gridi; kukhazikika kwa ntchito ndi kwakukulu, kukonza ndikosavuta, kukula kwaukadaulo, ndi zina zotero. Imagwiritsidwa ntchito kwambiri. Pali zinthu zambiri zofooka za ma filter ongogwira ntchito: mphamvu ya magawo a gridi yamagetsi, mtengo wa impedance ya dongosolo ndi chiwerengero chachikulu cha ma frequency a resonant nthawi zambiri zimasintha pamene mikhalidwe yogwirira ntchito ikusintha; filter ya harmonic ndi yopapatiza, chiwerengero chachikulu cha nthawi zazikulu chokha ndi chomwe chingasefedwe kuchokera ku Harmonics, kapena chifukwa cha zotsalira zofanana, kukulitsa ma harmonics; mgwirizano pakati pa kusefa ndi reactive compensation ndi pressure regulating; pamene mphamvu ikuyenda mu fyuluta, ingayambitse ntchito yochulukirapo ya zida; Zinthu zogwiritsidwa ntchito ndi zazikulu kwambiri, kulemera ndi voliyumu ndi zazikulu; kukhazikika kwa ntchito ndi koipa. Chifukwa chake, fyuluta yogwira ntchito yokhala ndi magwiridwe antchito abwino imagwiritsa ntchito zambiri.
Tikhozanso kusintha zinthu za rf passive malinga ndi zomwe mukufuna. Mutha kulowa patsamba losinthira kuti mupereke zofunikira zomwe mukufuna.
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Nthawi yotumizira: Feb-09-2022
