Dhizaini yeAntena yemukati yeStable Signal pamapiritsi
Mapiritsi emazuva ano anodiwa kuti ape kubatana kwakasimba kune zvakasiyana-siyana zvinodiwa: misangano yepamhepo, kudzidza kure, mitambo, uye kunyange kufamba-famba uye kutengeserana zvinoenderana nenzvimbo. Seri kwechiitiko chinoita sechiri nyore che "signal yakazara" pachiratidziro, kune matambudziko akaomarara einjiniya, kunyanya sezvo maantenna achifanira kuiswa munzvimbo diki, pedyo nesimbi, madhiraivha, mabhatiri, nezvimwe zvikamu zvemagetsi zvinokanganisa mashandiro eredhiyo. Chinyorwa chino chinokurukura misimboti, matambudziko, uye nzira dzekugadzira maantenna emukati kuchengetedza masaini epiritsi akasimba eWi-Fi, cellular (4G/5G), Bluetooth, uye GNSS (GPS, nezvimwewo).
1. Sei kanyanga yemukati mepiritsi yakaoma kupfuura nharembozha?
Pakutanga kuona, mahwendefa akakura kupfuura mafoni, zvichiita kuti zvive nyore kuisa ma antenna. Zvisinei, pane zvinhu zvakawanda zvinoita kuti dhizaini yacho ive yakaoma:
1. Muviri wesimbi nechidzitiro chikuru: Mapiritsi mazhinji anoshandisa furemu yearuminiyamu nechidzitiro chikuru chinogona kupinza kana kutungamira mafungu eredhiyo.
2. Kusiyana kwekushandiswa: Mapiritsi anowanzo batwa nemaoko maviri, akatsigirwa nebhokisi, akaiswa patafura, kana akabatanidzwa nekhibhodi. Kuchinja uku kwese kunochinja mamiriro emagetsi akakomberedza antenna.
3. Zvinodiwa pakushandisa maredhiyo akawanda: Mapiritsi anowanzo sanganisa Wi-Fi (2,4/5/6 GHz), Bluetooth (2,4 GHz), nharembozha (yakaderera kusvika pakati), uye GNSS (inenge 1,5 GHz). Rimwe nerimwe rinoda kushanda zvakanaka pasina kukanganisa rimwe.
4. Kureruka kushoma: Maantenna emukati anoda nzvimbo isina simbi kuti akwanise kufema. Pamapiritsi, nzvimbo iyi inowanzo sangana nebhatiri guru nemaspika.
2. Magadzirirwo makuru ekugadzira antenna yepiritsi
Kuti vagadzire chiratidzo chakagadzikana, vagadziri veantenna havangovavariri "kubata chiratidzo" chete, asiwo kugadzirisa ma parameter anotevera:
- Kushanda zvakanaka kwemwaranzi: Simba reRF rakawanda sei rinotorwa nemwaranzi neantenna, pane kurasika sekupisa kana kunyudzwa nezvinhu.
– Kusapindirana uye kuenderana (S11/kurasikirwa nekudzoka): Antena inofanira kuenzaniswa neRF circuit (kazhinji 50 ohms) kuitira kuti simba rekuratidzira rive diki.
– Bandwidth: Tablet inofanira kufukidza huwandu hwakakura hwema frequency, kunyanya kune cellular (mabhendi akaderera akadai se700–900 MHz kusvika 2–3 GHz) uye Wi‑Fi.
– Magadzirirwo emwaranzi: Zviri nani kuti pasave ne "nzvimbo dzakakura dzisingaonekwe" kana piritsi richitenderedzwa kana kubatwa.
– Kuparadzaniswa pakati pemaantenna (kuparadzaniswa): Zvakakosha kuti Wi‑Fi/5G MIMO iite kuti maantenna maviri aya asapindirane zvakanyanya.
– SAR uye kuchengetedzeka: Kunyangwe mapiritsi achiwanzo chengetedzwa kure nemusoro kupfuura nharembozha, mitemo yeSAR inoramba yakakosha, kunyanya kune nharembozha.
3. Mhando dzemaantenna emukati anowanzo shandiswa
Magadzirirwo emapiritsi anowanzo shandisa mamwe emhando dzeantenna dzinotevera, zvichienderana nebhendi uye zvirambidzo zvemakanika:
1. PIFA (Antena Yakagadziriswa-F Yakarongwa)
Inozivikanwa nekuda kwekuoma kwayo uye nyore kwayo kugadzirisa. Yakakodzera mamwe mabhendi efoni uye Wi-Fi, inoita kuti ishande zvakanaka kana iri pedyo nepasi.
2. Antena yeIFA/FPC (circuit yakadhindwa inochinjika)
Inoshandisa nzira inochinjika yekufambisa (FPC) inogona kubatanidzwa kumucheto kwebhokisi. Inoshanda pakugadzira zvinhu zvakawanda uye inogona kugadzirwa ine resonant yakawanda kune mabhendi akati wandei.
3. Nzvimbo yeAntena pafuremu
Kushandisa nzvimbo dziri mufuremu yesimbi sezvinhu zvinopenya. Inoshandiswa zvakanyanya nekuti mapiritsi anowanzova nemafuremu esimbi; dambudziko nderekudzora kushivirira kwemuchina uye shanduko dzekushanda nekuda kwekubata/kukanda.
4. Chidimbu cheMonopole/loop
Yakakodzera mafrequency akakwira nenzvimbo dzakatarwa, inowanzobatanidzwa netiweki inoenderana kuti iwedzere bhendi.
Mukuita, mapiritsi e "cellular + Wi‑Fi" anowanzo shandisa musanganiswa we: ma antenna efoni ekutanga uye akasiyana-siyana/MIMO, ma antenna eWi‑Fi/Bluetooth (anowanzo goverwa), uye ma antenna eGNSS akaiswa pasina ruzha rwakanyanya.
4. Maitiro ekuisa chiratidzo chakagadzikana
Kuiswa kwechiratidzo ndicho chinhu chikuru chinoita kuti zviratidzo zvigadzikane sezvo mapiritsi aine nzvimbo dzakawanda dzinokanganisa uye dzinonyudza zvinhu.
– Isa antenna pamucheto (kuiswa kwemucheto): Mupendero wepamusoro/pasi kana divi repiritsi kazhinji ndiyo nzvimbo yakanakisisa nekuti iri kure nebhatiri uye ine "nzvimbo yakasununguka".
– Chengeta kure nemabhatiri nezvidziviriro zveRF: Mabhatiri, sezvo ari makuru, anogona kuchinja kurira kweantenna. Zvidziviriro zvesimbi nemabhuraketi zvinogonawo kuderedza kushanda zvakanaka.
– Nyatsoteerera mashandisirwo anoitwa: Mapiritsi anowanzo shandiswa senzvimbo. Maantenna maviri ari kuruboshwe nerudyi anobatsira kuchengetedza mashandiro kana rumwe rutivi rwakafukidzwa neruoko.
– Maantenna eMIMO akasiyana: Kune 2×2 kana 4×4 Wi‑Fi, daro reantenna uye kurongeka kwayo zvinoitwa zvakasiyana (kusiyana kwepolarization) kuitira kuti throughput igadzikane mu multipath.
5. Dambudziko guru: kudzima tambo nekuda kwemaoko nekavha
Zviratidzo zvepiritsi zvinowanzo "chinja-chinja" kwete nekuda kwenetwork, asi nekuti antenna inochinja hunhu kana iri pedyo nemaoko, ganda, kana kesi.
– Maoko sema dielectric anorasikirwa: Kunwisa simba reRF, kuderedza kuwedzera uye kushandura frequency ye resonance (kubvisa ruzha).
– Makesi/makiyibhodhi emagineti: Zvishongedzo zvine magineti, simbi, kana coating dzinofambisa magetsi zvinogona kuchinja patani yemwaranzi uye kuenderana kwayo.
- Mhinduro dzekugadzira:
- Gadzira dhizaini yebroadband kuitira kuti frequency shift isakurumidza kusundidzira antenna kunze kwebhendi.
- Wedzera circuit yekuisa tuning (capacitor/inductor kana antenna tuner IC) kuti igadziriswe ne dynamic adaptation.
- Isa nzvimbo dzinoyerera nguva dzose, dzakadai se "mahwindo eantenna" ane zvinhu zvisingafambise mhepo pafuremu.
6. Kufananidza uye kugadzirisa network ye multi-band
Kubatanidza maAntenna network (impedance adjustment circuit) ndiyo kiyi yekuwana kurasikirwa kwakanaka kwekudzoka mubhendi rechinangwa. Pamapiritsi e-multi-band, zvinowanzoitwa:
- Dhizaini yeresonance yakawanda: Antena imwe ine maresonance akawanda anofukidza mabhendi akasiyana.
- Kufananidza kunochinjika: Inoshandisa RF switch kusarudza network inoenderana zvichienderana nebhendi renhare rinoshanda.
– Tuner yeAntenna: Tuner IC inogona kugadzirisa capacitance/inductance munguva chaiyo zvichienderana nemamiriro ezvinhu, zvichibatsira kuchengetedza mashandiro kana maoko akavhara antenna. Zvisinei, izvi zvinowedzera mutengo, kuoma, uye kushandiswa kwesimba.
7. MIMO neredhiyo zviripo pamwe chete (Wi‑Fi, Bluetooth, 5G)
Mapiritsi emazuva ano anovimba neMIMO kuti arambe akabatana nekukurumidza munzvimbo dzakazara vanhu. Dambudziko nderekudzivirira kupindira:
– Kuzviparadzanisa kwakakwana: Maantenna eMIMO ari pedyo zvakanyanya achasangana nekubatana, zvichiita kuti simba ridzikire.
– 2,4 GHz Kushanda pamwe chete: 2,4 GHz Wi‑Fi neBluetooth zvinogovana bhendi. Magadzirirwo emaAntena nemafirita anofanira kuderedza kupindirana, pamwe nemaalgorithms ekugarisana pachipset.
- Kudzika pasi kwakadzorwa: Nzira dzepasi uye mafungu ekudzoka zvinokanganisa zvakanyanya mashandiro eantenna; kurongeka kusina kunaka kwePCB kunogona kubvumira ruzha kupararira kuGNSS kana kuderedza kunzwisiswa kweWi-Fi.
8. Zvishandiso uye ruzivo rwemakanika zvinowanzo sarudza mhedzisiro yekupedzisira.
Kushanda kwema antenna kunowanzo "donha" kwete mukuenzanisa, asi kana kwapinda munyika chaiyo. Zvinhu zvakakosha zvemakanika zvinosanganisira:
– Simbi vs. furemu yepurasitiki: Simbi inopa simba, asi inoita kuti RF iome. Mapiritsi mazhinji anoshandisa "hwindo reRF" repurasitiki munzvimbo dzakati.
– Kunamira, furo, uye tepi: Zvinhu zvinonamira zvinogona kuchinja chinja kwe dielectric constant uye kukanganisa resonance.
– Kushivirira kugadzirwa: Kuchinja kudiki pakureba kwenzira yeantenna, nzvimbo yeFPC, kana daro kubva pasi kunogona kuchinja mashandiro. Dhizaini yacho inofanira kunge yakasimba kana paine shanduko.
9. Maitiro ekugadzira nekusimbisa: kubva pakuenzanisa kusvika pakuedza mumunda
Dhizaini yeantenna yemukati inowanzoenderera mberi nekudzokorora:
1. Tsanangudzo yezvinodiwa: Band yefrequency, chinangwa chekubuda, chinangwa cheTRP/TIS, MIMO, miganhu yemakanika.
2. Kutevedzera Electromagnetic (EM): Kugadzira chimiro chekesi, furemu, sikirini, bhatiri, uye antenna.
3. Muenzaniso uye kugadzirisa: Yera maS-parameters neVNA, wobva wagadzirisa matching.
4. OTA (Over-The-Air) Bvunzo: Kuyera TRP (Total Radiated Power) uye TIS (Total Isotropic Sensitivity) mukamuri.
5. Kuedza kushandiswa panguva chaiyo: Kunoita kuti pave nekubatana kwakasimba kana kwakabatwa, nebhokisi, munzvimbo dzakasiyana-siyana, uye mumamiriro echiratidzo asina kusimba.
10. Kesimpulan
Dhizaini yeantenna yemukati yechiratidzo chakagadzikana mumapiritsi isanganiswa yeRF engineering, mechanics, uye ruzivo rwemushandisi. MaAntenna anofanira kushanda zvakanaka, broadband, anodzivirira kubviswa kweruoko/kesi, uye anotsigira MIMO uye multi-radio coexisting. Nzira dzakajairika dzakaratidza kushanda dzinosanganisira kuisa maantenna pamucheto wemudziyo, kupatsanura maantenna eMIMO ane marongero akasiyana, kushandisa slots dzakagadzirwa zvakanaka kana maFPC, uye kugadzirisa adaptive. Nekushandisa simulation iterations dzakarongwa uye OTA testing, mapiritsi anogona kuchengetedza kubatana kwakasimba—kunyangwe kana akashandiswa nenzira dzakasiyana-siyana uye pasi pemamiriro ezvinhu akaoma enetwork.
Kana muchida, ndinogona kugadzirisa chinyorwa ichi kuti chive chehunyanzvi (semuenzaniso, kusanganisira mienzaniso yehurongwa, zvinangwa/kupatsanurwa kweS11, kana chidzidzo che2×2 Wi‑Fi + 5G) kana kuti chinonyanya kufarirwa nevaverengi.
