Ukuqhuma kwe-antenna yempondo ukukhula kancane kancane kwe-waveguide kusuka emphinjeni wayo kuya endaweni enkulu ekhipha imisebe.Lolu shintsho luvumela insimu kagesi eqondiswayo ukuthi isakazeke ngaphambi kokuba ifinyelele isikhala samahhala, okusiza i-antenna ukuthi ifinyelele ukufanisa okuwusizo kwe-impedance, isiqondiso kanye nokulawula imisebe.
Kusho Ukuthini Ukuvutha Ku-Antenna Yezimpondo?
Umhlahlandlela wamaza olula ovulekile ungakhipha ukukhanya, kodwa umngcele osheshayo phakathi komhlahlandlela wamaza nendawo ekhululekile ubangela ukubonakaliswa futhi ukhawulele ukuvuleka okusebenzayo kokukhanya. Uphondo oluvuthayo lushintsha ingxenye ewelayo yomhlahlandlela wamaza kancane kancane kunokuba lushintshe ngokuzumayo.
Njengoba insimu idlula ku-flare, iyanda idlule ku-aperture enkulu. Usayizi we-aperture kanye nokusatshalaliswa kwesigaba bese kunquma izici ezibalulekile njengokwanda, ububanzi be-beamm, ama-sidelobes kanye nokusebenza kahle kwemisebe. Ukuqhuma kunciphisa ubunzima bokuguquka, kodwa akususi ukubonakaliswa noma kuqinisekise ukufana okuphelele.
Kungani Ukugqama Kwe-Antenna Yezimpondo Kubalulekile
Ukufanisa Impedance kanye ne-VSWR
Ukushintsha kancane kancane ngokuvamile kunciphisa ukungalingani phakathi kwemodi eqondisiwe kanye nesikhala esikhululekile. Umphumela oqondile uncike kuphrofayili yophondo, ubude, imbobo kanye nobukhulu be-waveguide, ngakho-ke i-VSWR kumele iqinisekiswe kulo lonke ibhendi yemvamisa ehlosiwe.
Ukuvulwa Nokuvuleka Okuphumelelayo
Ukuvutha kudala imbobo ebanzi ephumelelayo yokukhanya. Uma insimu yembobo inobukhulu obufanele kanye nokusatshalaliswa kwesigaba, amandla engeziwe agxila phambili futhi ukwanda kwe-antenna kuyanda. Ukwanda akunqunywa yi-engeli yembobo kuphela.
Iphethini yobubanzi be-beamwidth kanye ne-Radiation
Imbobo enkulu kagesi ivame ukukhiqiza umsebe oyinhloko omncane. Ubukhulu bokugqama kwe-E-plane kanye ne-H-plane bungakhethwa ngokuzimela kuphondo oluyi-pyramidal, okuvumela abaklami ukuthi balolonge umsebe kuhlelo ngalunye oluyinhloko.
Iphutha Lesigaba Sokuvula
Insimu ayifiki kuzo zonke izindawo zomgodi ngesigaba esifanayo. Uma uphondo lufushane kakhulu ngobukhulu bomgodi walo, ukushintshashintsha kwesigaba kunganda, kunciphisa ukusebenza kahle komgodi futhi kuthinte umsebe oyinhloko kanye nama-sidelobes.
Indlela i-Flare Angle, Usayizi we-Aperture kanye nobude be-Horn obusebenza ngayo ndawonye
Ayikho i-engeli engcono kakhulu ye-flare kuyo yonke i-antenna ye-horn. I-geometry efanele incike ku-frequency, imodi ye-waveguide, inzuzo yethagethi, ububanzi be-beamm, i-bandwidth, usayizi ovumelekile kanye nezidingo zephethini yemisebe.
- I-engeli ebanzi yokugqamaingadala imbobo enkulu esakhiweni esifushane, kodwa uphondo olufushane kakhulu lungase lufake iphutha elikhulu lesigaba sembobo.
- I-engeli encane yokugqamangokuvamile kudinga uphondo olude olunobukhulu obufanayo bokuvuleka, okwandisa ubude bomshini ngenkathi kusekelwa ukuguquka kancane kancane.
- Imbobo enkuluingasekela ukuqondisa okuphezulu kanye nomsebe omncane, uma nje ukusatshalaliswa kwesigaba kanye ne-amplitude kuhlala kulawulwa kahle.
Amajiyometri Ezimpondo Ezivamile Ezivuthayo
- Uphondo lwe-e-plane lwemboni:ivutha kakhulu endizeni kagesi.
- Uphondo lwe-H-plane sectoral:ivutha kakhulu endizeni yamagnetic-field.
- Uphondo lwe-pyramidal:ivutha kuzo zombili izigaba eziyinhloko futhi ivame ukusetshenziswa ezinhlelweni zokuthola inzuzo ejwayelekile.
- Uphondo oluyindilinga:yakhiwe nge-waveguide eyindilinga futhi yanwetshwa yaya endaweni evulekile eyindilinga.
Izinto Okufanele Uzicabangele Ngokuklama Okusebenzayo
Onjiniyela bahlola i-geometry ye-flare kanye nemvamisa yokusebenza, ubukhulu be-waveguide, inzuzo, ububanzi be-beawidth obungu-3 dB, i-VSWR, izinga le-sidelobe, i-polarization kanye nemikhawulo yemishini. Emafrikhwensini e-millimeter-wave, ukunemba komshini, ikhwalithi yobuso kanye nokuqondanisa kwe-flange kuba yinto ebaluleke kakhulu ngoba amaphutha amancane obukhulu amelela ingxenye enkulu yobude be-wavelength.
Izingxenye ze-Antennas kanye ne-Waveguide ezihlobene ze-15–22 GHz
Imikhiqizo engezansi ibonisa izingxenye eziningana ze-RF ezitholakalayo kububanzi be-15–22 GHz. Ukuze uthole uphondo olujwayelekile oluvuthayo kuleli bhendi, bheka i-RM-SGHA51-25.
Lapho Kusetshenziswa khona Ama-Antenna Ezimpondo Ezivuthayo
- Izinhlelo zokulinganisa kanye nokulinganisa i-antenna
- Izinhlelo zokudlulisa nokwamukela i-radar
- Ukuphakelwa kwesathelayithi kanye ne-reflector-antenna
- Ukuhlolwa kwelebhu ye-EMC kanye ne-microwave
- Izixhumanisi zokuxhumana ze-microwave kanye ne-millimeter-wave
imibuzo ejwayelekile ukubuzwa
Ingabe i-engeli enkulu yokugqama ihlala ikhulisa inzuzo?
Cha. I-engeli enkulu yokuvuleka ingandisa usayizi wokuvula ukuze kube nobude obuqondile bophondo, kodwa iphutha elikhulu lesigaba linganciphisa ukusebenza kahle kokuvula. Ukwanda kuncike ku-geometry ephelele kanye nokusatshalaliswa kwensimu.
Iyiphi i-engeli engcono kakhulu ye-antenna ye-horn?
Akukho inani elilodwa elihle kakhulu. Abaklami bakhetha i-engeli kanye nobukhulu bokuvuleka kanye nobude bophondo ukuze kuhlangatshezwane nezidingo zemvamisa, inzuzo, ububanzi be-beamm, i-VSWR kanye nosayizi.
Ingabe ukuvutha kuyayiqeda imisebe?
Cha. I-Flaring inikeza ukuguquka kancane kancane kusuka ku-waveguide kuya endaweni ekhululekile futhi inganciphisa ukubonakaliswa, kodwa umdlalo wokugcina usancike ekwakhiweni okuphelele.
Ukukhetha i-Antenna ye-Horn
Izimpahla ze-RF MISOizixazululo ze-antenna yophondokwezinhlelo zokusebenza ze-microwave kanye namagagasi e-millimeter. Ukuze uthole inketho ye-standard-gain engu-14.5–22 GHz, buyekeza i-RM-SGHA51-25Ukuze uthole umbono obanzi, bhekaI-Antenna Yezimpondo: Isimiso Sokusebenza, Izinhlobo, Izici Zokushiswa Kwemisebe kanye Nezicelo.
Udinga usizo lokukhetha i-geometry ye-flare, ububanzi bemvamisa, inzuzo noma isikhombimsebenzisi?Xhumana ne-RF MISOukuxoxa ngezidingo zakho zokulinganisa noma zokuhlanganisa uhlelo.
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Isikhathi sokuthunyelwe: Ephreli-17-2025
