Akụkọ ihe mere eme nke antenna opi malitere na 1897, mgbe onye nchọpụta redio bụ Jagadish Chandra Bose mere atụmatụ nnwale mbụ site na iji microwaves. Mgbe e mesịrị, GC Southworth na Wilmer Barrow mepụtara usoro nke antenna opi nke oge a na 1938 n'otu n'otu. Kemgbe ahụ, a na-amụkarị atụmatụ antenna opi iji kọwaa usoro radieshọn ha na ojiji ha n'ọtụtụ ebe. Antenna ndị a ama ama nke ukwuu n'ọhịa nke nnyefe waveguide na microwaves, ya mere a na-akpọkarị ha aha.antenna ngwa ndakwa nriYa mere, isiokwu a ga-enyocha otu antenna mpi si arụ ọrụ na ojiji ha n'ọtụtụ ngalaba.
Gịnị bụ antenna mpi?
A antenna mpibụ antenna oghere e mere kpọmkwem maka ugboro microwave nke nwere njedebe sara mbara ma ọ bụ nke dị ka mpi. Nhazi a na-enye antenna ahụ nduzi ka ukwuu, na-enye ohere ka a na-ebufe akara ngosi ahụ ngwa ngwa n'ebe dị anya. Antenna mpi na-arụ ọrụ na ugboro microwave, yabụ ugboro ha na-abụkarị UHF ma ọ bụ EHF.
Antenna mpi RFMISO RM-CDPHA618-20 (6-18GHz)
A na-eji antenna ndị a eme ihe dị ka mpi nri maka antenna buru ibu dịka antenna parabolic na nke ntụzịaka. Uru ha gụnyere ịdị mfe nke imewe na nhazi, oke ebili mmiri dị ala, nhazi dị mma, na nnukwu bandwit.
Nhazi na ọrụ nke antenna mpi
Enwere ike iji usoro e ji ebili mmiri dị ka mpi mee ihe maka izipu na ịnata ihe mgbaàmà microwave ugboro redio. A na-ejikarị ha eme ihe na nri nduzi ebili mmiri na ebili redio kpọmkwem iji mepụta obere oghere. Akụkụ ahụ nwere ike ịdị n'ụdị dị iche iche, dị ka square, conical, ma ọ bụ akụkụ anọ. Iji hụ na ọrụ ya kwesịrị ekwesị, nha nke antenna kwesịrị ịdị obere dịka o kwere mee. Ọ bụrụ na ogologo ebili mmiri buru ibu ma ọ bụ na nha mpi ahụ dị obere, antenna ahụ agaghị arụ ọrụ nke ọma.
Ihe osise nke mpi antenna
N'ime antenna opi, akụkụ nke ike ihe merenụ na-esi n'ọnụ ụzọ nke onye ndu ebili mmiri pụta, ebe ike ndị ọzọ na-apụtaghachi site n'otu ọnụ ụzọ ahụ n'ihi na ọnụ ụzọ ahụ meghere, nke na-eme ka oghere ahụ na onye ndu ebili mmiri ghara ịdị mma. Na mgbakwunye, n'akụkụ nke onye ndu ebili mmiri, diffraction na-emetụta ikike radieshọn nke onye ndu ebili mmiri.
Iji merie adịghị ike nke onye nduzi ebili mmiri, e mepụtara oghere njedebe n'ụdị mpi elektrọnik. Nke a na-enye ohere maka mgbanwe dị nro n'etiti oghere na onye nduzi ebili mmiri, na-enye nduzi ka mma maka ebili mmiri redio.
Site n'ịgbanwe nduzi ebili mmiri dị ka usoro mpi, a ga-ewepụ nkwụsị na mgbochi 377 ohm n'etiti oghere na nduzi ebili mmiri. Nke a na-eme ka njikọ na uru nke antenna nnyefe dịkwuo mma site na ibelata diffraction na nsọtụ iji nye ike ihe merenụ na-apụta n'ihu.
Lee otu antenna opi si arụ ọrụ: Ozugbo otu nsọtụ nke onye ndu ebili mmiri ahụ nwere obi ụtọ, a na-emepụta ubi magnet. N'ihe gbasara mgbasa nke onye ndu ebili mmiri, enwere ike ijikwa ubi mgbasa site na mgbidi onye ndu ebili mmiri ka ubi ahụ ghara ịgbasa n'ụzọ gburugburu kama n'ụzọ yiri mgbasa nke oghere efu. Ozugbo ubi gafere rutere na nsọtụ onye ndu ebili mmiri, ọ na-agbasa n'otu ụzọ ahụ dị ka ọ dị na oghere efu, yabụ a na-enweta ihu ebili mmiri gburugburu na nsọtụ onye ndu ebili mmiri.
Ụdị antenna mpi ndị a na-ahụkarị
Antenna Mkpọmkpọ Ọkọlọtọ Na-enweta Ọkọlọtọbụ ụdị antenna a na-ejikarị eme ihe na sistemụ nkwukọrịta nwere uru na obosara ìhè. Ụdị antenna a dabara adaba maka ọtụtụ ngwa ma nwee ike inye mkpuchi mgbaàmà kwụsiri ike na nke a pụrụ ịtụkwasị obi, yana arụmọrụ nnyefe ike dị elu na ikike mgbochi mgbochi dị mma. A na-ejikarị antenna gain horn nkịtị eme ihe na nkwukọrịta mkpanaka, nkwukọrịta kwụsiri ike, nkwukọrịta satịlaịtị na mpaghara ndị ọzọ.
Ndụmọdụ ngwaahịa antenna uru nke RVMISO ọkọlọtọ:
RM-SGHA159-20 (4.90-7.05 GHz)
RM-SGHA90-15 (8.2-12.5 GHz)
RM-SGHA284-10(2.60-3.95 GHz)
Antenna opi broadbandbụ antenna eji anata ma zipu akara ikuku. O nwere njirimara eriri sara mbara, nwere ike ikpuchi akara na ọtụtụ eriri ugboro n'otu oge, ma nwee ike ịnọgide na-arụ ọrụ nke ọma na eriri ugboro dị iche iche. A na-ejikarị ya eme ihe na sistemụ nkwukọrịta ikuku, sistemụ radar, na ngwa ndị ọzọ chọrọ mkpuchi eriri sara mbara. Nhazi nhazi ya yiri ọdịdị nke ọnụ mgbịrịgba, nke nwere ike ịnata ma ziga akara nke ọma, ma nwee ike igbochi nnyonye anya na ogologo nnyefe.
Ndụmọdụ ngwaahịa antenna RFMISO nke nwere opi obosara:
RM-BDHA618-10(6-18 GHz)
RM-BDPHA4244-21(42-44 GHz)
RM-BDHA1840-15B(18-40 GHz)
Antenna Mpịakọta Abụọ nke Polarizedbụ antenna e mere nke ọma iji zipu ma nata ebili mmiri elektrọnik n'akụkụ abụọ nke orthogonal. Ọ na-abụkarị antenna opi corrugated abụọ e tinyere n'akụkụ kwụ ọtọ, nke nwere ike izipu ma nata akara polarized n'otu oge n'akụkụ kwụ ọtọ na kwụ ọtọ. A na-ejikarị ya eme ihe na radar, nkwukọrịta satịlaịtị na sistemụ nkwukọrịta mkpanaka iji melite arụmọrụ na ntụkwasị obi nke nnyefe data. Ụdị antenna a nwere nhazi dị mfe na arụmọrụ kwụsiri ike, a na-ejikwa ya nke ukwuu na teknụzụ nkwukọrịta ọgbara ọhụrụ.
Nkwado ngwaahịa antenna abụọ nke RFMISO:
RM-BDPHA0818-12（0.8-18 GHz）
RM-CDPHA218-15（2-18 GHz）
RM-DPHA6090-16(60-90 GHz)
Okirikiri Polarization mpi Antennabụ antenna e mere nke ọma nke nwere ike ịnata ma ziga ebili mmiri elektrọnik n'akụkụ kwụ ọtọ na nke kwụ ọtọ n'otu oge. Ọ na-abụkarị onye nduzi ebili mmiri gburugburu na ọnụ mgbịrịgba dị iche iche. Site na nhazi a, enwere ike nweta nnyefe na nnata gburugburu nke nwere polarized. A na-eji ụdị antenna a eme ihe nke ukwuu na radar, nkwukọrịta na sistemụ satịlaịtị, na-enye ikike nnyefe mgbaàmà na nnata a pụrụ ịtụkwasị obi karịa.
Ndụmọdụ ngwaahịa antenna mpi gbara okirikiri nke RVMISO:
RM-CPHA82124-20(8.2-12.4GHz)
RM-CPHA09225-13 (0.9-2.25GHz)
RM-CPHA218-16（2-18 GHz）
Uru nke antenna mpi
1. Enweghị ihe ndị na-eme ka ụda olu dị nro, ọ pụkwara ịrụ ọrụ na nnukwu bandwit na oke ugboro ugboro.
2. Oke obosara na-abụkarị 10:1 (1 GHz – 10 GHz), mgbe ụfọdụ ruo 20:1.
3. Nhazi dị mfe.
4. Ọ dị mfe ijikọ na ebili mmiri na ahịrị nri coaxial.
5. Site na obere oke ebili mmiri (SWR), ọ nwere ike ibelata ebili mmiri ndị na-eguzo.
6. Ezigbo ndakọrịta impedance.
7. Arụmọrụ kwụsiri ike n'ofe oke ugboro ole niile.
8. Nwere ike ịmepụta obere akwụkwọ nta.
9. A na-eji ya eme ihe dị ka mpi nri maka nnukwu antenna parabolic.
10. Nye ụzọ ka mma.
11. Zere ka ebili mmiri na-eguzo.
12. Enweghị ihe ndị na-emegharị ahụ ma nwee ike ịrụ ọrụ na nnukwu bandwit.
13. O nwere ezigbo ụzọ isi ma na-enye ụzọ isi dị elu.
14. Na-enye obere ntụgharị uche.
Ngwa nke antenna mpi
A na-ejikarị antenna ndị a eme ihe maka nnyocha mbara igwe na ngwa dabere na microwave. Enwere ike iji ha dị ka ihe oriri maka ịtụ paramita antenna dị iche iche na ụlọ nyocha. Na ugboro microwave, enwere ike iji antenna ndị a ma ọ bụrụhaala na ha nwere uru dị ala. Iji nweta ọrụ uru ọkara, nha antenna mpi ga-abụrịrị ibu. Ụdị antenna ndị a dabara adaba maka igwefoto ọsọ iji zere nnyonye anya na nzaghachi ntụgharị uche achọrọ. Enwere ike inwe mkpali parabolic reflectors site na ihe ndị na-enye nri dị ka antenna mpi, si otú a na-enye reflectors ìhè site na iji uru dị elu ha na-enye.
Iji mara ihe ndị ọzọ biko gaa leta anyị
Ekwentị: 0086-028-82695327
Oge ozi: Maachị-28-2024
