Sichuan Keenlion Microwave Technology——Sefa
Sichuan Keenlion Microwave Technology Yakavambwa muna 2004, Sichuan Keenlion Mircrowave techenology CO., Ltd. ndiyo inotungamira kugadzira zvinhu zvePassive Mircrowave muSichuan Chengdu, China.
Isu tinopa yakakwirira-inoshanda mirrowave zvikamu uye zvinoenderana masevhisi ekushandisa microwave kumba nekune dzimwe nyika. Zvigadzirwa zvinodhura, zvinosanganisira akasiyana-siyana simba divider, anotungamira couplers, mafirita, masanganisi, duplexers, customized passive components, isolators uye circulators. Zvigadzirwa zvedu zvakagadzirirwa zvakanyanya kune akasiyana akanyanya nharaunda uye tembiricha. Tsanangudzo dzinogona kuumbwa zvinoenderana nezvinodiwa nevatengi uye dzinoshanda kune ese akajairwa uye akakurumbira mabhendi mabhendi ane akasiyana bandwidths kubva kuDC kusvika ku50GHz.
Iyo sefa inogona kunyatso kusefa frequency yeyakatarwa tambo yemagetsi kana frequency kunze kweiyo frequency point, kuwana chiratidzo chemagetsi sosi yeimwe frequency, kana kubvisa chaiyo frequency simba chiratidzo.
Nhanganyaya
Iyo sefa mudziyo wekusarudza unobvumira iyo chaiyo frequency chikamu muchiratidzo kuti ipfuure, uye zvimwe zvikamu zve frequency zvakadzikiswa zvakanyanya. Iyi sarudzo yekushandisa uchishandisa sefa inogona kusefa kunze kweruzha rwekukanganisa kana kuita spectrum ongororo. Mune mamwe mazwi, inodaidzwa sefa iyo inogona kukonzera kuti imwe frequency chikamu muchiratidzo chipfuure, uye kudzoreredza zvakanyanya kana kudzvinyirira zvimwe zvikamu zve frequency. Sefa mudziyo unopepetwa nemasaisai. "Wave" ipfungwa yakafara kwazvo yemuviri, mumunda wehunyanzvi hwemagetsi, "wave" inongogumira pakuita kwekubvisa kukosha kwehuwandu hwemuviri hwakasiyana nekufamba kwenguva. Maitiro acho anoshandurwa kuita nguva yekushanda kwevoltage kana yazvino kuburikidza nemhando dzakasiyana dzemuviri, kana masaini. Sezvo nguva yekuzvishandura iri kukosha kunoramba kuripo, inonzi chiratidzo chenguva inoenderera, uye inowanzonzi chiratidzo cheanalog.
Kusefa ipfungwa yakakosha mukugadzirisa zviratidzo, uye basa rekusefa dunhu muDC voltage regulator nderokudzikisa chikamu cheAC muDC voltage sezvinobvira, chengetedza iyo DC ingredient, kuitira kuti goho remagetsi ripple coefficient ridzikiswe, waveform inova Smooth.
Tiye main parameters:
Center frequency: Frequency f0 yefirita passband, kazhinji tora f0 = (f1 + f2) / 2, f1, f2 sebhendi pass kana bhendi kuramba sefa kuruboshwe, kurudyi kwakatarisana ne1 dB kana 3DB edge frequency point. Iyo narrowband sefa inowanzoverengera iyo passband bandwidth ine diki poindi yekuisa kurasikirwa.
Deadline: Inoreva nzira inoenda kunzira yepassband yeyakaderera pass sefa uye bhendi rekupfuura repamusoro dhizaini. Iyo inowanzotsanangurwa mune imwe hama yekurasikirwa point ye1 dB kana 3DB. Iyo referensi referensi yekurasikirwa kwehama ndeye: iyo yakaderera pass yakavakirwa pakuiswa kweDC, uye iyo Qualcomm yakavakirwa pane yakakwana yepamusoro-pass frequency yeparasitic strip.
Passband bandwidth: inoreva hupamhi hwehupamhi hunodiwa kuti upfuure, BW = (F2-F1). F1, F2 yakavakirwa pakurasikirwa kwekuisa pacentre frequency F0.
Kurasikirwa kwekupinza: Nekuda kwekuunzwa kwesefa kumhepo yechiratidzo chepakutanga mudunhu, kurasikirwa pakati kana cutoff frequency, senge inodikanwa kuve nebhendi rese kurasikirwa kwekusimbisa.
Ripple: Inoreva iyo 1DB kana 3DB bandwidth (cutoff frequency) renji, iyo yekuisa kurasikirwa inochinjika pamusoro peiyo frequency pane yekurasikirwa zvinoreva curve.
Kuchinja kwemukati: Kurasika kwekuisa mukati mebhendi rine frequency kusiyana. Kuchinja kwebhendi mu1db bandwidth ndeye 1db.
In-band standby: Edza kana chiratidzo chiri mupassband musefa yakanaka kuenderana nekutapurirana kwekutapurirana. Yakanaka Match VSWR = 1: 1, VSWR yakakura kupfuura 1 kana isingaenderane. Kune sefa chaiyo, bandwidth inogutsa VSWR ishoma pane 1.5: 1 kazhinji ishoma pane BW3DB, iyo inoverengera chikamu cheBW3DB uye kurongeka kwesefa uye kuisa kurasikirwa.
Roop kurasikirwa: Huwandu hwemadecibel (DB) reshiyo yesimba rekuisa chiratidzo chechiteshi uye simba rinoratidzwa rakaenzana ne20 Log 10ρ, ρ ivoltage reflection coefficient. Iko kurasikirwa kwekudzoka kusingagumi kana simba rekuisa rinotorwa nechiteshi.
Kuburitswa kweiyo strip suppression: chiratidzo chakakosha chehutano hwesefa sarudzo yekuita. Iyo yakakwirira iyo chiratidzo, zviri nani iyo yekunze kupindira chiratidzo kudzvanywa. Panowanzove nemhando mbiri dzechikumbiro: nzira yekudzvanya kuti yakawanda sei DB inhibition yeakapihwa bhendi kuyambuka frequency fs, nzira yekuverenga ndeye FS kuderera; chimwe chinoratidza chirevo chechiratidzo chefirita shinda uye yakakodzera rectangle nzira - Rectangular coefficient (KXDB yakakura kupfuura 1), KXDB = BWXDB / BW3DB, (X inogona kuva 40dB, 30dB, 20DB, nezvimwewo). Iyo yakawanda rectangular rectangles, iyo yakakwira rectangularity - ndiko kuti, iyo iri padyo neiyo yakakosha kukosha 1, uye kuoma kwekuita kugadzirwa kwakakura.
Kunonoka: Chiratidzo chinoreva nguva inodiwa kuti chiratidzo chitumire chikamu chebasa diagonal frequency, kureva, TD = DF / DV.
In-band phase linearity: Ichi chinongedzo chemaitiro sefa ndiyo chikamu chinokanganisa chechiratidzo chinofambiswa mupassband. Iyo sefa yakagadzirwa neiyo linear chikamu chekupindura basa ine yakanaka chikamu mutsara.
Main classification
Yakakamurwa kuita analog sefa uye dhijitari sefa zvinoenderana nechiratidzo chiri kugadziriswa.
Iyo nzira yekupfuura yepassive sefa yakakamurwa kuita yakaderera pass, yakakwirira pass, bandpass, uye yese-pass sefa.
Low pass filter:inobvumira yakaderera-frequency kana DC zvikamu muchiratidzo kuti zvipfuure, kudzvanya ma frequency epamusoro kana kupindira uye ruzha;
High-pass sefa: inobvumira yakakwira frequency zvikamu muchiratidzo kuti zvipfuure, kudzvanya yakaderera frequency kana DC zvikamu;
Band Pass Sefa: Inobvumira masaini kuti apfuure, akadzvanywa masaini, kupindira, uye ruzha pazasi kana pamusoro pebhendi;
Beltable sefa: Iyo inodzvanya masaini mukati meimwe frequency bhendi inobvumira masaini kunze kwebhendi, inozivikanwawo se notch sefa.
All-pass sefa: Iyo yakazara-pass sefa inoreva kuti amplitude yechiratidzo haizochinji mukati mehuwandu hwakazara, ndiko kuti, kuwedzera kweamplitude yehuwandu hwakazara hwakaenzana ne 1. General ese-pass mafirita anoshandiswa kupatsanura chikamu, ndiko kuti, chikamu chekuchinja kwechiratidzo chekupinda, uye chakanakira ndechekuti chikamu chekuchinja chinoenderana ne frequency, iyo yakaenzana neyenguva yekunonoka system.
Zvese zviri zviviri zvikamu zvinoshandiswa zvese zviri zviviri passive uye zvinoshanda mafirita.
Zvichienderana nekuiswa kwesefa, inowanzo patsanurwa kuita plate sefa uye pani sefa.
Pabhodhi, isa pabhodhi, senge PLB, JLB yakatevedzana sefa. Zvakanakira sefa iyi zvine hupfumi, uye chakashata ndechekuti yakakwirira frequency kusefa hakuna kunaka. Chikonzero chayo chikuru ndechekuti:
1. Hapana kuparadzaniswa pakati pekupinza uye kubuda kwesefa, iyo inowanzosangana nekubatanidza;
2, iyo impedance yepasi pesefa haina kuderera zvakanyanya, yakanetesa iyo yakakwira frequency bypass athari;
3, chidimbu chekubatanidza pakati pesefa uye chassis chinoburitsa maviri akashata mhedzisiro: imwe ndeye electromagnetic kupindira kwemukati mechassis, iyo inotungamirwa zvakananga kune iyi mutsara, pamwe netambo, uye inopenya sefa nenzira yetambo radiation. Kukundikana; imwe yacho ndeyekuti kupindira kwekunze kunonatswa nesefa sefa pabhodhi, kana kuti mwaranzi inogadzirwa zvakananga kana zvakananga kudunhu pabhodhi redunhu, zvichikonzera matambudziko ekunzwa;
Sefa yakarongwa mahwendefa, mafirita anobatanidza uye mamwe mapaneru mafirita anowanzo kuisirwa pane simbi pani yeinodzivirira chassis. Sezvo yakanyatso kuisirwa pane simbi pani, iyo yekupinza uye kubuda kwesefa yakasarudzika zvachose, ivhu rakanyatso kudzika, uye kupindira patambo kunosefa pamusoro pechiteshi chechassis, saka kusefa kwacho kwakanyatso.
Iyo passive sefa idunhu resefa rinoshandisa resistor, reactor, uye capacitor chikamu. Kana iyo resonant frequency, iyo yedunhu impedance kukosha ishoma, uye dunhu impedance yakakura, iyo yedunhu chikamu kukosha inogadziriswa kune chimiro harmonic frequency, uye harmonic ikozvino inogona kusefa kunze; apo akati wandei harmonic frequense Iyo tuning yedunhu inoumbwa, ipapo inoenderana ficha harmonic frequency inogona kusefa, uye kusefa iyo huru nhamba harmonic (3, 5, 7) inowanikwa neyakaderera impedance bypass. Nheyo huru ndeye nhamba dzakasiyana dzemaharmonics, kugadzira iyo harmonic frequency idiki, ichiwana kupatsanurwa kweiyo harmonic yazvino, ichipa nzira yekupfuura ye prefiltered high harmonics kuti iwane kucheneswa waveform.
Passive mafirita anogona kukamurwa kuita capacitive mafirita, magetsi ekudyara mafirita maseketi, L-RC mafirita maseketi, π-yakaumbwa RC mafirita maseketi, akawanda-chikamu RC mafirita maseketi, uye π-yakaumbwa LC kusefa maseketi. Dzvanya kuti ushande mune imwechete tuning sefa, mbiri tuning sefa, uye yakakwirira pass sefa. Iyo passive sefa ine zvinotevera mabhenefiti: chimiro chiri nyore, mari yekudyara yakaderera, uye iyo inogadzirisa chikamu muhurongwa inogona kutsiva iyo simba chinhu muhurongwa. Inovandudza simba regridhi; kugadzikana kwekushanda kwakakwirira, kuchengetedza kuri nyore, unyanzvi hwekugadzirisa, etc. Inoshandiswa zvakanyanya. Pane zvakawanda zvezvikanganiso zve passive filters: kukanganisa kwemagetsi grid parameters, system impedance value uye nhamba huru ye resonant frequencies inowanzochinja semamiriro ekushanda; iyo harmonic sefa yakamanikana, iyo chete nhamba huru yenguva huru inogona chete kusefa kunze Harmonics, kana nekuda kwezvakafanana zvakasara, inosimudzira harmonics; kuwirirana pakati pekusefa uye reactive muripo uye kudzora kumanikidza; sezvo ikozvino inoyerera kuburikidza nesefa, inogona kukonzera kuwandisa kwekushanda kwemidziyo; Izvo zvinoshandiswa zvakakura zvakanyanya, uremu uye huwandu hwakakura; kugadzikana kwekushanda kwakashata. Naizvozvo, sefa inoshanda nekuita zvirinani inowedzera uye yakawanda maapplication.
Isu tinogona zvakare kugadzirisa iyo rf passive zvikamu zvinoenderana nezvaunoda. Iwe unogona kupinda peji rekugadzirisa kuti upe zvakatemwa zvaunoda.
https://www.keenlion.com/customization/
Emali:
sales@keenlion.com
tom@keenlion.com
Nguva yekutumira: Feb-09-2022
