Kugadzira uye Kugadzira PCB yeAnti Jamming Drone

Drone inonzi PCB inorwisa jamming haisi bhodhi rekutonga reUAV rakajairika rine dziviriro yakawedzerwa. IPCB yakagadzirwa nechinangwa chekuchengetedza kufamba, telemetry, vhidhiyo, uye mashandiro ekuraira pasi pekudzvanywa kwemaune, kupindirana kwenzvimbo, uye ruzha rwemagetsi kubva kune vari muchikepe nevekunze.

Izvi zvinokosha mumakambani, maindasitiri, uye maUAV ekudzivirira. Pedyo nenhandare dzendege, shongwe dzenhepfenyuro, zviteshi zvepasi, kana nzvimbo dzine RF dzakaipa, mashandiro emadrone anogona kudzikira nekukurumidza kana PCB isina kugadzirwa kuti isapindire. PCB yedrone inodzivirira kuvharika kwemhepo inotenderera inoenderana nekugadzirwa kwakarongeka kwestack-up, grounding, RF isolation, simba rakasimba, kuiswa kwezvikamu, uye dziviriro kubva pakutanga.

Tora Mutengo wePCB weAnti-Jamming

Chii Chinofanira Kurambwa nePCB yeAnti Jamming Drone

Kuti ugadzire PCB yedhirowa rinodzivirira kuvharika kwemhepo nemazvo, zvakakosha kutsanangura nzira dzekupindira dzaunofanira kutsungirira. Hazvisi zvese "kuvharika kwemhepo" zvinoitwa nemaune. Kubva pamaonero ekugadzira bhodhi, mamiriro ezvinhu anotyisidzira anowanzo sanganisira mapoka mana:

• Kujamming kweRF nemaune: kupindira kwesimba guru kwakanangana neGNSS, telemetry, control links, kana video links
• EMI yekunze isingatarisirwi: kutumira kwakasimba kwepedyo kubva ku radar, zvivakwa zvenhepfenyuro, masisitimu efoni, kana michina yeRF yeindasitiri
• Kuzvipindira mundege: ruzha rwunogadzirwa nemaESC, mamota, maswitching regulators, ma processors anomhanya zvakanyanya, makamera, uye maredhiyo ane airframe imwe chete
• Kupindirana kwenzvimbo imwe chete: kubatana pakati pemasisitimu eRF eGNSS, telemetry, vhidhiyo, murairo, uye payload yedrone

Bhodhi harigone kugadzirisa dambudziko rega rega rehurongwa, asi rinokanganisa zvakanyanya kunzwisiswa kwevanogamuchira, mukana wekubatanidza, ruzha rwechikamu, kuchena kwesimba, uye mukana wekubatanidzwa kusingadiwe. Muchokwadi, dhizaini yePCB isina kusimba inogona kushandura dhizaini inodzivirira kuvharika kwesimba kuita chigadzirwa chisina kuvimbika.

Zvikamu Zvikuru zveBhodhi-Level Anti-Jamming Design

Magadzirirwo eLayer Stack neGrounding Architecture

Bhodhi reUAV rinodzivirira kuvharika kwemhepo rinoshandisa zvikamu 6 kusvika ku10, kunyange zvazvo mapuratifomu akaomarara angada zvikamu zvekuwedzera kuti aparadzanise RF, GNSS, madhijitari anomhanya zvakanyanya, uye masimba emagetsi ane simba guru. Nheyo huru haisi yekupatsanura pasi zvisina tsarukano, asi kuchengetedza nzvimbo dzinoenderera mberi dzekutarisa uye nzira dzinofungidzirwa dzekudzoka uku uchiparadzanisa mabasa ane ruzha uye anonzwa kuburikidza nekuisa, kurongeka kwenzira, kusefa, uye kutonga kwesimba remuno.

Kune maRF neGNSS traces, mareferensi asina kukanganiswa akakosha. Chero kupatsanurwa, kutsemuka, kana kusona zvisina kunaka pasi penzira yechiratidzo chinonzwa kunogona kuwedzera kusagadzikana kweimpedance, mwaranzi, uye kubatwa nenjodzi. Saka, PCB yedrone yakasimba inodzivirira jamming inosimbisa kuenzana kwe stack-up, continuous ground reference, corset shielding boundaries, uye inodzorwa zvakasimba kuburikidza ne transitions.

Mumagadzirirwo emhando yepamusoro, stack-up inowanzo gadziriswa ne impedance modeling uye electromagnetic analysis pane kushandisa mutemo wekutonga chete. Izvi zvinonyanya kukosha mu integrated drones solutions dzinosanganisa telemetry, GNSS, video transmission, onboard compute, uye payload electronics mukati me compact platform imwe chete.

Matekiniki ekudzivirira uye ekubvisa RF

Magaba ekudzivirira ane miganhu yakasonerwa pasi

Matangi ekudzivirira anoramba ari mamwe ekudzivirira anonyanya kushanda zvakanaka pakushandisa drone RF electronics. Mupendero wechidzitiro unofanira kuwira padenderedzwa repad rinoramba riri pasi rakakora nerakakora kuburikidza nekusona kune imwe kana kupfuura mapuraneti epasi akasimba. Chinangwa ndechekuderedza kubuda kwemvura kubva panzvimbo yemagetsi, kudzvinyirira kubatana kwegomba, uye kuderedza kupindirana kunopfuura madziro echidzitiro nepakati pe substrate kana nzvimbo dzisina kusimba dzekuisa pasi.

Nzvimbo dzeRF dzakapatsanurwa

Pamabhodhi akaomarara eRF, zvinowanzobatsira kupatsanura LNA, synthesizer kana VCO, PA, transceiver, uye sensitive baseband sections munzvimbo dzakasiyana dzakadzivirirwa kana nzvimbo dzakanyatsoparadzaniswa. Izvi zvinobatsira kuderedza kubatana kwenzvimbo, kunyanya kana simba rekutumira uye sensitivity yekugamuchira zviri pamwe chete padyo.

Mitsetse yekudyisa inodzorwa-impedance

MaAntenna feeds, GNSS traces, uye inter-stage RF connections zvinofanirwa kuendeswa semarongerwo anodzorwa-impedance ane mareferensi anoenderera mberi uye shanduko dzinotarisirwa nokungwarira. Zvigadzirwa zvepasi zvakagadzikwa kuburikidza nefenzi kana coplanar grounding zvinogona kushandiswa uko RF geometry inovatsigira. Chinangwa hachisi chekungowedzera mhangura yakawanda, asi kuwana mukana wekuchengetedza munda uye kutakurwa kwesignali kusingarasikirwe zvakanyanya.

Dziviriro yekubatanidza uye yekupinda netambo

Kunyangwe kana PCB pachayo yakagadzirwa zvakanaka, kupindira kunowanzo pinda kuburikidza netambo dzekunze, mahanesheni, uye ma antenna connectors. Nzira dzakajairika dzekudzivirira bhodhi dzinosanganisira kudzivirira ESD, common-mode filtering pazvinenge zvakakodzera, chassis-to-board bonding strategy, uye controlled connector placement zvichienzaniswa nema security receiver circuits.

Kuvimbika Kwesimba Pasi Pekumanikidzwa Kwakanyanya Kwemagetsi

Kusimba kwesimba ndeimwe yezvinhu zvisinganyanyi kutarisirwa pakugadzirwa kwePCB inodzivirira kuvharika kwesimba. Drone inogona kuita seine dambudziko reredhiyo kana chikonzero chikuru chiri kusvibiswa kwesimba remagetsi, maharmoniki ekushandura, kusvetuka kwepasi kwenguva pfupi, kana kudonha kwesimba panguva yekuchinja kwemutoro wemota.

MuPCB yedrone inodzivirira kuvharika kwemhepo, dhizaini yemagetsi inofanirwa kugadzirwa kuti ichengetedze maRF neGNSS blocks zviri nyore kushandisa magetsi kunyangwe airframe ichiwana simba remagetsi rinoshanduka. Izvi zvinowanzoreva kuti:

• Kurapa kwesimba kwakasiyana kune nzvimbo dzinonzwa: GNSS, RF front end, wachi, uye ma sensor ekugadzirisa hazvifanirwe kugoverana nzira dzemagetsi dzine ruzha nemamota, ma transmitter ane simba guru, kana ma compute bursts.
• Kuchinja mutemo usati watanga nemutemo wepashure pemutemo wemunharaunda: Chivakwa chinoshanda ndechekushandisa shanduko inoshanda yeDC-DC kumusoro uye wobva waisa LDO cleanup pedyo nemabhuroko anonyanya kunzwa ruzha.
• Mabhero eferrite nekusefa zvinoshandiswa nemaune: mabhero anogona kubatsira kudzvinyirira ruzha rwepamusoro-soro kana akasarudzwa uye akaiswa nemazvo, asi haasi kutsiva dhizaini yenzira yekudzoka kwenzwi
• Chirango chekuisa maConverter: ramba uchichinja ma regulators, ma inductors, uye ma hot current loops ari kure neGNSS antennas, ma LNAs, ma reference oscillators, uye ma receiver inputs.
• Nzira yekubvisa kupindirana kwemhepo isina simba: Kupatsanura kunofanirwa kuenzaniswa nezviri mukati menguva uye ma "current transients" edomeni rega rega, kwete kushandiswa se "generic checklist".

Kana GNSS ichibatanidzwa, vagadziri vanofanirawo kuona kuti kuchinja mafrequency, harmonics, emissions dzenhema, uye zvigadzirwa zvewachi hazvideredzi kunzwa kwevanogamuchira mumabhendi akakodzera. Dhizaini inopfuura functional reduction inogona kuramba ichishanda zvakanaka mumunda kana emissions dzemukati dzikasimudza ruzha rwakanaka pedyo ne navigation receiver. Kuti zvive nyore kuvimbika, zvinodiwa izvi zvinofanirwawo kuratidzwa mukugadzirwa uye kuenderana kwemaitiro, kunyanya kana uchishanda nemugadziri wePCB wedrone ane hunyanzvi.

Kuomesa uye Kufambisa GNSS Fallback

Kune maUAV mazhinji, subsystem inonyanya kukuvadzwa haisi telemetry radio huru asi navigation receiver. Masaini eGNSS anosvika nesimba shoma, zvichiita kuti akwanise kuvharwa nemaune uye kukanganiswa netsaona. Nekuda kweizvozvo, kuomeswa kweGNSS kunofanirwa kutariswa zvakanyanya muPCB yedrone inorwisa kuvharwa.

Zvinhu zvakakosha pakugadzira zvinosanganisira:

• Rutsigiro rwemapoka akawanda enyeredzi GNSS: GPS, Galileo, GLONASS, uye BeiDou zvinovandudza kuwanikwa uye kuwanda kwenzvimbo, kunyange hazvo kusiyana kwemapoka enyeredzi chete kusiri iko kugona kwakazara kwekudzivirira kuvharika kwenzvimbo.
• Kusefa kwepamberi uye dziviriro yeLNA: Mafirita eSAW kana BAW, kuwedzera ruzha rushoma, uye kutsvedza kwe active-antenna kunobatsira kuchengetedza kunzwisiswa kwemugamuchiri
• Kunyatso fambisa antenna feed: mitsetse mipfupi, inodzorwa ne impedance, yakanyatsotsanangurwa inoderedza kurasikirwa kwekuisa uye njodzi yekubatanidza
• Kuparadzaniswa neruzha rwedhijitari uye rwesimba: chengetedza GNSS kure nevanochinja-chinja, wachi dze processor, nzira dzemakamera, uye nzira dzekudzoka kwemota-current
• Rutsigiro rwekufamba-famba kwefallback: interface yakachena yeIMU uye nzira yakavimbika yekubatanidza sensor inovandudza kuenderera mberi kana mashandiro eGNSS achiderera

Kune mapuratifomu epamusoro kana ekudzivirira, CRPA (controlled reception pattern antenna) architectures inogona kudzvinyirira kupindirana munzvimbo nekugadzira antenna response. Kutsigira CRPA padanho rePCB kunoda zvakanyanya kupfuura kuendesa GNSS feed imwe chete nekuti inoda kuenderana kwechikamu, kuenderana kwechiteshi kwakanyatsodzorwa, dhizaini yepamberi-yekupedzisira ine ruzha rwakaderera, uye symmetry yekurongeka. Mapurogiramu ane zvinodiwa zvepamusoro zvekurarama anogona zvakare kuongorora hunyanzvi hwePCB hwema drone ehondo uko mission profile, communication resistance, uye system integration zvinoda nzira yakaoma.

Muchokwadi, kugona kutsungirira kufamba kwakasimba kunowanzo bva mukubatanidzwa kwekugadzirwa kwakanaka kweGNSS front-end, inertial sensing, time surveillance, uye flight-control logic izvo zvinogona kudzikira zvakanaka pachinzvimbo chekukundikana kamwe kamwe kana zviratidzo zvesatellite zvisisina kuvimbika.

Link Diversity uye Fiber Optic Alternatives

Hapana nzira imwe chete yeredhiyo yakakwana kune chero nzvimbo yekupindira. Mapuratifomu mazhinji ekudzivirira jamming drones anovandudza kugona kushanda kuburikidza nekusiyana kwezvinobatanidza: malink akasiyana ekuraira nepayload, ma frequency band akawanda, adaptive channel management, directional antennas, uye physical separation pakati pemaredhiyo ane airframe imwe chete.

Padanho rePCB, izvi zvinoda kurongeka kwekugarisana zvakanaka. Bhodhi rinofanira kuderedza kupindirana pakati pematransmitter nemareceivers, kupatsanura wachi neLO leak, uye kudzivirira maRF stages ane simba guru kuti asadonhe ne receiver dynamic range. MumaUAV mazhinji, muganho wekudzivirira jamming hausi weprotocol chete, asi kusakwana kwe co-site isolation uye kuita ruzha kwehardware.

Kune masisitimu akasungirirwa, fiber optic drone PCB architectures inopa imwe nzira yakakosha. Fiber haivimbi nekushandiswa kweRF isina waya kune chikamu ichocho chekutaurirana, izvo zvinoita kuti irambe yakasimba kune RF jamming yekare munzira yedata yakasungirirwa. Zvisinei, ma transceivers anobatanidzwa, power conversion, uye interface electronics zvichiri kuda dhizaini chaiyo yePCB inoziva EMI.

Kana manejimendi ye tether iri chikamu chepuratifomu, nzira ye optical inoenderanawo nemagetsi akagadzikana e spool-side uye kubatanidzwa kwe cable-handling. Dhizaini iyoyo ye subsystem inokurukurwa zvakasiyana muongororo yedu ye fiber optic tether spool PCB.

Maitiro Ekuedza Kushanda Kwekudzivirira Kujairika

PCB yedhirowa rinodzivirira kuvharika kwemhepo inofanira kusimbiswa nguva refu isati yasvika nguva yekupedzisira yekuongororwa kwekamuri. Kuongororwa kwekutanga kwebhodhi uye kwechikamu chepasi pehurongwa kunogona kuona matambudziko ekusagadzikana kwemhepo ukuwo shanduko dzemarongerwo dzichiri kushanda.

Nzira dzinokurudzirwa dzekusimbisa dzinosanganisira:

• Kuedzwa kwekukurumidza kubatwa nechirwere: ongorora kuti njanji dzemagetsi nedzekunze dzinoita sei kana paine ruzha rwakakonzerwa kana kukanganiswa kwenguva pfupi
• Kuongororwa kwekushandiswa kwemwaranzi: kuisa bhodhi kana subassembly munzvimbo dzinodzorwa dzeRF uku uchitarisa kukiya kweGNSS, mhando ye telemetry, uye kugadzikana kwe processor
• Kupinza kweAntena-port kukanganiswa: kuyera kudzikira kwemugamuchiri, kusanzwa kwemanzwiro, kuvharira mhinduro, uye maitiro ekupora pasi pekupindira kwakadzorwa
• Hunhu hweruzha rwesimba pasi pemutoro: cherechedza ma "ripple", "transients", uye "switching artifacts" ane mota, payload, compute, uye maredhiyo ari kushanda panguva imwe chete.
• Mashandiro eGNSS pasi pebasa rehurongwa hwese: tarisa maitiro emuchina wekutakura ruzha, mashandiro ekutorazve, kugadzikana kwenzvimbo, uye kunzwa kwese uku zvese zviri mukati zvichishanda
• Kuedzwa kwekupindirana kwenzvimbo imwe chete: simbisa kuti malink ari mubhodhi haanyanyi kukanganisana zvakanyanya kana achitumirana panguva imwe chete
• Ongororo yeEMC isati yatevedza mitemo: shandisa ma probe ari pedyo nemunda, ma probe aripo, uye zviyero zve spectral kuti uwane ma emitters makuru uye nzira dzekubatanidza usati waedza kutevedzera mutemo.

Kuongorora uku hakutsivi magwaro akazara ezvakatipoteredza kana EMC, asi kunogona kuratidza chikamu chikuru chematambudziko epasi, kudzivirira, kuisa, uye simba panguva yekutanga yekugadzirwa. Kana sisitimu yakasungirirwa, interface ye optical yepasi inofanirawo kusimbiswa sechikamu cheketani yakazara yekutaurirana, kusanganisira ma electronics anotsanangurwa mu fiber optic canister PCB design.

Mibvunzo Inowanzo bvunzwa Nezve Anti Jamming Drone PCB

Ko drone yega yega inoda PCB yedrone inodzivirira kupwanya here?

Haasi madhirowa ese anoda dhizaini yekudzivirira kupwanywa kwemotokari, asi anenge madhirowa ese ehunyanzvi anobatsirwa nekugadzirwa kwePCB kunozivikanwa neEMI. Kuomarara kunodiwa kunoenderana nekukosha kwebasa, RF nharaunda, kureba kwekushanda, kunzwisisika kwemutoro, uye njodzi inogamuchirwa.

Kugona kudzivirira jamming kunogona kuiswa paPCB iripo here?

Zvimwe zvinhu zvinogona kuwedzerwa gare gare, zvinosanganisira kudzivirira, kusefa, kugadzirisa tambo, uye kuchenesa magetsi. Zvisinei, zvinhu zvinonyanya kukosha—kukwira mudungwe, kuenderera mberi kwenzira yekudzoka, kuiswa, daro rekupatsanurwa, uye kupatsanurwa kweRF—zvinowanzoonekwa pakutanga kwehurongwa. Kugadziriswazve kunogona kubatsira, asi hazviwanzoenderana nePCB yakagadzirirwa kudzivirira kukanganiswa kubva pakutanga.

Ndezvipi zvinodiwa zvine chekuita nazvo?

Zvinodiwa zvinoshanda zvinoenderana nechirongwa uye musika. Miyero yeEMC, zvakatipoteredza, kudedera, uye chinangwa chakanangana nemabasa zvinogona kushanda zvese. Mumamiriro ehondo, mapurogiramu anowanzo tarisa zviyero zvakaita seMIL-STD-461 yekuenderana kwemagetsi uye MIL-STD-810 yekusimba kwezvakatipoteredza, asi zvinodiwa chaizvo zvinofanirwa kugara zvichisimbiswa padanho resisitimu uye rechibvumirano.

GNSS yemapoka akawanda enyeredzi yakakwana here kuti ikwanise kudzivirira kuvharika kwejamming?

Kwete. Rutsigiro rwemapoka akawanda enyeredzi runovandudza kuwanikwa uye kusimba, asi haruvimbise kuti runogona kuramba kuvharwa nemaune. Kushanda kwechokwadi kwekudzivirira kuvharwa kunowanzoenderana nekusefa kwepamberi, kudzivirira, simba rakachena, receiver dynamic range, antenna strategy, uye dhizaini yekufamba.

Kugadzira PCB kunogona sei kuvandudza mashandiro ekudzivirira kuvharika kwemadrone mumasisitimu?

Kugadzirwa kwePCB kunoita basa rakakosha mukuvandudza mashandiro ekudzivirira kuvharika kwema drone system. Kuronga kuunganidzwa kwema stack-up kunozivikanwa neRF, kudzora kudzorwa kwe impedance, kudzivirira zvinobudirira, uye kuvaka simba rakachena kunobatsira kuderedza kupindirana kwemagetsi uye kudzivirira maGNSS anonzwa uye ma communication circuits kubva mukukanganiswa kwesignali.

Highleap inotsigira kugadzirwa nekuunganidzwa kwemapurojekiti ePCB ekurwisa jamming drone epuratifomu dzeUAV dzemaindasitiri, dzakasungirirwa, uye dzinotarisa pakudzivirira, kusanganisira kugadzirwa kwe controlled-impedance, kuvaka bhodhi rakadzivirirwa, uye kubatanidzwa kwakasimba. Isu tinopawo masevhisi ePCB akatsaurirwa uye ePCB ekubatanidza kuti tive nechokwadi chekuti magetsi eRF-sensitive uye mixed-signal drone anoshanda zvakanaka nguva dzose.