Nā huahana
ʻAntenna Omnidirectional Wideband ANT0104
| Alakaʻi-mw | Hoʻolauna i ka Ultra Wideband Omnidirectional Antenna |
Ke hoʻolauna nei i ka ʻenehana microwave alakaʻi.,(leader-mw) antenna omnidirectional ultra-wideband hou ANT0104. Ua hoʻolālā ʻia kēia antenna ikaika e hana ma luna o kahi alapine ākea mai 20MHz a 3000MHz, e kūpono ana no nā ʻano hana like ʻole e like me ke kamaʻilio uea ʻole, nā ʻōnaehana radar a me nā mea hou aku.
ʻOi aku ka nui o ka loaʻa ʻana o kēia antenna ma mua o 0dB, a ʻo ka ʻokoʻa poepoe kiʻekiʻe loa he ±1.5dB, e hōʻoiaʻiʻo ana i ka hoʻoili hōʻailona hilinaʻi a kūlike. Hoʻonui hou ʻia kāna hana e kahi ʻano hoʻolaha pālahalaha ±1.0dB, e hāʻawi ana i ka uhi maikaʻi loa ma nā ʻaoʻao āpau.
Loaʻa iā ANT0104 nā ʻano polarization kū pololei, e kūpono ana no nā noi kahi i makemake ʻia ai ka hoʻoili kū pololei. Eia kekahi, ʻo ka VSWR ≤2.5:1 a me ka impedance 50 ohm o ka antenna e hāʻawi i ka hoʻohālikelike impedance kūpono a me ka nalowale hōʻailona liʻiliʻi.
ʻO kona hoʻolālā liʻiliʻi a paʻa hoʻi e kūpono ia no ka hoʻohana ʻana i loko a me waho, a ʻo kāna hana omnidirectional e ʻae ai i ka pilina maʻalahi i kekahi ʻano.
Inā pono ʻoe e hoʻonui i ka ikaika o ka hōʻailona o kāu pūnaewele uea ʻole, hoʻomaikaʻi i ka hana o kāu ʻōnaehana radar, a i ʻole makemake wale e hōʻoia i nā kamaʻilio hilinaʻi ma luna o kahi ākea alapine (frequency) ākea, ʻo ka ANT0104 Ultra Wideband Omnidirectional Antenna ka hopena kūpono loa.
| Alakaʻi-mw | Nā kikoʻī |
ANT0104 20MHz～3000MHz
| Pae alapine (frequency): | 20-3000MHz |
| Loaʻa, ʻAno: | ≥0（ʻAno.） |
| ʻO ka ʻokoʻa nui loa mai ke kaʻapuni | ±1.5dB（ʻAno maʻamau.） |
| ʻAno hoʻolaha pālahalaha: | ±1.0dB |
| Ka hoʻokaʻawale ʻana: | Polarization linear-vertical |
| VSWR: | ≤ 2.5: 1 |
| Palekana: | 50 OHMS |
| Nā Mea Hoʻohui Puka: | N-Wahine |
| Pae Mahana Hana: | -40˚C-- +85˚C |
| kaumaha | 2kg |
| Waihoʻoluʻu ʻIli: | ʻōmaʻomaʻo |
Nā Manaʻo:
ʻOi aku ka maikaʻi o ka helu mana no ka ukana vswr ma mua o 1.20:1
| Alakaʻi-mw | Nā Kikoʻī Kaiapuni |
| Mahana Hana | -30ºC~+60ºC |
| Mahana mālama | -50ºC~+85ºC |
| Haʻalulu | 25gRMS (15 kekelē 2KHz) ke ahonui, 1 hola no kēlā me kēia axis |
| ka makū | 100% RH ma 35ºc, 95%RH ma 40ºc |
| Pūʻiwa | 20G no 11msec hapalua sine wave, 3 axis ʻelua ʻaoʻao |
| Alakaʻi-mw | Nā Kikoʻī Mīkini |
| Mea | nā mea hana | ʻilikai |
| Uhi kino vertebral 1 | 5A06 alumini pale ʻino | ʻOkika alakaʻi kala |
| Uhi kino vertebral 2 | 5A06 alumini pale ʻino | ʻOkika alakaʻi kala |
| kino vertebral antenna 1 | 5A06 alumini pale ʻino | ʻOkika alakaʻi kala |
| kino vertebral antenna 2 | 5A06 alumini pale ʻino | ʻOkika alakaʻi kala |
| kaulahao i hoʻopili ʻia | pepa laminated aniani epoxy | |
| ʻO ke kumu antenna | ʻUlaʻula copper | ka hoʻopau ʻana |
| Pahu hoʻopaʻa 1 | Nailona | |
| Pahu hoʻopaʻa 2 | Nailona | |
| uhi waho | ʻO ka fiberglass i hoʻopili ʻia me ka meli | |
| Nā Rohs | kūlike | |
| Kaumaha | 2kg | |
| Hoʻopili ʻana | Pahu hoʻopili alumini (hiki ke hoʻopilikino ʻia) | |
Kaha Kiʻi:
Nā Ana āpau ma mm
Nā Hoʻomanawanui Hoʻolālā ± 0.5 (0.02)
Nā Hoʻomanawanui o nā Lua Kau ʻana ±0.2(0.008)
Nā Mea Hoʻohui A Pau: SMA-Wahine
| Alakaʻi-mw | ʻIkepili Hoʻāʻo |
| Alakaʻi-mw | ana o ka antenna |
No ke ana pono ʻana o ka coefficient directivity antenna D, wehewehe mākou iā ia mai ka nui o ka laulā kukuna radiation antenna.
ʻO ke kuhikuhi ʻana D ka lakio o ka nui o ka mana i hoʻāla ʻia P(θ,φ) Max i kona waiwai awelika P(θ,φ)av ma kahi poepoe ma ka ʻāpana mamao, a he lakio ʻole dimensionless ʻoi aku ka nui a i ʻole like me 1. Penei ke ʻano helu:
Eia kekahi, hiki ke helu ʻia ka directivity D e ka formula penei:
D = 4 PI / Ω _A
I ka hana maoli, hoʻohana pinepine ʻia ka helu logarithmic o D e hōʻike i ka loaʻa kuhikuhi o kahi antenna:
D = 10 log d
Hiki ke unuhi ʻia ke kuhikuhi ʻana o D ma luna nei ʻo ia ka lakio o ka laulā sphere (4π rad²) ka laulā kukuna antenna ω _A. No ka laʻana, inā hoʻolaha kahi antenna i ka hakahaka hemispherical o luna wale nō a ʻo kona laulā kukuna he ω _A=2π rad², a laila ʻo kona kuhikuhi ʻana:
Inā lawe ʻia ka logarithm o nā ʻaoʻao ʻelua o ka hoʻohālikelike ma luna, hiki ke loaʻa ka loaʻa kuhikuhi o ka antenna e pili ana i ka isotropy. Pono e hoʻomaopopo ʻia hiki i kēia loaʻa ke hōʻike wale i ka radiation kuhikuhi o ka antenna, ma ke anakahi o dBi, ʻoiai ʻaʻole i manaʻo ʻia ka pono o ka hoʻoili ʻana he loaʻa kūpono. Eia nā hopena helu:
3.01 papa: : dBi d = 10 log 2 mea
ʻO nā ʻāpana loaʻa antenna ʻo dBi a me dBd, kahi:
ʻO DBi: ʻo ia ka loaʻa i loaʻa e ka radiation antenna e pili ana i ke kumu kiko, no ka mea, ʻo ke kumu kiko he ω _A=4π a ʻo ka loaʻa kuhikuhi he 0dB;
ʻO DBd: ʻo ia ka loaʻa o ka radiation antenna e pili ana i ka antenna dipole hapalua nalu;
ʻO ke ʻano hoʻololi ma waena o dBi a me dBd penei:
2.15 papa: : mea DBD dBi 0
