Igwe mpi nwere okpukpu abụọ nwere ike ibunye ma nata ebili mmiri electromagnetic polarized kwụ ọtọ na kwụ ọtọ ka ọ na-edobe ọnọdụ ọnọdụ agbanweghị, nke mere na njehie ngbanwe ọnọdụ sistemụ kpatara site na ịgbanwe ọnọdụ antenna iji mezuo ihe achọrọ nke mgbanwe polarization na-ewepụ, na nke mere na usoro ziri ezi nwere ike imeziwanye. Igwe mpi nwere okpukpu abụọ nwere uru nke uru dị elu, ntụzịaka dị mma, ikewapụ oke ike, ikike dị elu, wdg, a mụọla ya wee jiri ya mee ihe. Eriri nwere oghere nwere ike ịkwado polarization linear, elliptical polarization na ụdị polarization okirikiri.
Ụdị ọrụ:
| Ụdị nnabata |
| • Mgbe antenna na-enweta ebili mmiri kwụ ọtọ, ọ bụ naanị ọdụ ụgbọ mmiri nwere ike ịnata ya, na ọdụ ụgbọ mmiri dịpụrụ adịpụ. dịpụrụ adịpụ. • Mgbe antenna na-enweta elliptical ma ọ bụ okirikiri polarization waveform, ọdụ ụgbọ mmiri kwụ ọtọ na kehoraizin na-enweta akụkụ vetikal na kehoraizin nke mgbama ahụ, n'otu n'otu. Dabere na polarization okirikiri aka ekpe (LHCP) ma ọ bụ aka nri okirikiri polarization (RHCP) nke waveform, a ga-enwe ogo 90-ogo lagging ma ọ bụ na-aga n'ihu n'etiti ọdụ ụgbọ mmiri. Ọ bụrụ na ebili mmiri ahụ bụ nke ọma okirikiri, njupụta mgbama si n'ọdụ ụgbọ mmiri ga-abụ otu. Site na iji ngwakọ ngwakọ kwesịrị ekwesị (ogo 90), enwere ike jikọta akụkụ kwụ ọtọ na akụkụ kwụ ọtọ iji weghachi okirikiri ma ọ bụ elliptical waveform. |
| Ụdị nnyefe |
| • Mgbe a na-enye antenna site n'ọdụ ụgbọ mmiri kwụ ọtọ, ọ na-ebufe ụdị ebili mmiri kwụ ọtọ n'ahịrị kwụ ọtọ. • Mgbe a na-enye antenna ahụ nri site na ọdụ ụgbọ mmiri kwụ ọtọ, ọ na-ebufe ụdị polarization ahịrị kwụ ọtọ. • Mgbe a na-enye antenna ahụ gaa na ọdụ ụgbọ mmiri kwụ ọtọ na kwụ ọtọ site na ọdịiche nke ogo 90, akara njupụta nha nha, a na-ebufe ụdị ebili mmiri LHCP ma ọ bụ RHCP dị ka oge na-adalata ma ọ bụ na-aga n'ihu n'etiti akara abụọ ahụ. Ọ bụrụ na amplitudes mgbaàmà nke ọdụ ụgbọ mmiri abụọ ahụ abaghị nhata, a na-ebufe elliptical polarization waveform. |
| Ụdị ntụgharị |
| • Mgbe a na-eji antenna na ọnọdụ nnyefe na ịnata, n'ihi nkwụsị dị n'etiti ọdụ ụgbọ mmiri kwụ ọtọ na nke kwụ ọtọ, ọ nwere ike ịnyefe ma nata n'otu oge. |
RF MISOna-enye usoro abụọ nke eriri abụọ nwere polarized, otu dabere na nhazi quad-ridge na nke ọzọ dabere na Waveguide Ortho-Mode Transducer (WOMT). E gosiri ha na eserese 1 na eserese 2 n'otu n'otu.
Ọgụgụ 1 Igwe mpi nwere akụkụ anọ nwere oghere
Ọgụgụ 2 Igwe mpi nwere okpukpu abụọ dabere na WOMT
E gosipụtara myirịta na ọdịiche dị n'etiti antennas abụọ ahụ na Tebụl 1. N'ikwu okwu n'ozuzu, antenna dabere na nhazi quad-ridge nwere ike kpuchie bandwit na-arụ ọrụ sara mbara, na-abụkarị karịa band octave, dị ka 1-20GHz na 5-50GHz. Site na nkà imewe mara mma na usoro nhazi dị elu,RF MISO's ultra-wideband antenna dual-polarized nwere ike ịrụ ọrụ ruo n'ogo dị elu nke ebili mmiri millimeter. A na-ejedebe bandwit na-arụ ọrụ nke antennas dabeere na WOMT site na bandwit na-arụ ọrụ nke waveguide, mana uru ya, obosara beam, akụkụ lobes na cross polarization/port-to-port kewapụrụ nwere ike ịka mma. Ka ọ dị ugbu a n'ahịa, ọtụtụ antennas nwere okpukpu abụọ dabere na WOMT nwere naanị 20% nke bandwit na-arụ ọrụ na enweghị ike ikpuchi ọkọlọtọ ugboro ugboro. Antenna gbadoro ụkwụ na WOMT nke nwere okpukpu abụọ mebere yaRF MISOnwere ike ikpuchi bandwit na-efegharị zuru oke, ma ọ bụ n'elu eriri octave. Enwere ọtụtụ ụdị ịhọrọ.
Tebụl 1 Ntụle nke antennas nwere oghere abụọ
| Ihe | Dabere Quad-ridge | Dabere na WOMT |
| Ụdị antenna | Igwe okirikiri ma ọ bụ akụkụ anọ | Ụdị niile |
| Bandwit na-arụ ọrụ | Band Ultra-wide | Waveguide bandwit ma ọ bụ ogologo ugboro WG |
| Nweta | 10 ruo 20dBi | Nhọrọ, ruo 50dBi |
| Ọkwa Lobe akụkụ | 10 ruo 20dB | Obere ala, ụdị antenna dabere |
| Bandwit | Ogologo oke n'ime bandwit na-arụ ọrụ | Ka kwụsie ike na igwe egwu zuru oke |
| Cross polarization iche | 30dB Dịkarịa | Dị elu, 40dB Ọ na-ahụkarị |
| Port gaa n'ọdụ ụgbọ mmiri iche | 30dB Dịkarịa | Dị elu, 40dB Ọ na-ahụkarị |
| Ụdị ọdụ ụgbọ mmiri | Coaxial | Coaxial ma ọ bụ ebili mmiri |
| Ike | Dị ala | Elu |
Igwe mpi nwere okpukpu abụọ nke quad-ridge dabara adaba maka ngwa ebe oke nha na-agbasa ọtụtụ bandwaveguide ugboro ugboro, ma nwee uru nke ultra-wideband na nnwale ngwa ngwa. Maka eriri abụọ nwere polarized dabere na WOMT, ị nwere ike họrọ ụdị antenna dị iche iche, dị ka mpi conical, mpi pyramid, nyocha ebili mmiri mepere emepe, mpi oghere, mpi scalar, mpi corrugated, mpi nri corrugated, antenna Gaussian, antenna efere, wdg. Enwere ike nweta antennas dị iche iche dabara maka ngwa sistemụ ọ bụla.RF MISOnwere ike ịnye modul mgbanwe okirikiri na akụkụ anọ iji guzobe njikọ dị n'etiti antenna nwere interface okirikiri okirikiri ọkọlọtọ yana WOMT nwere interface waveguide square. Igwe mpi abụọ-polarization dabere na WOMT nke ahụRF MISOnwere ike inye ka egosiri na Tebụl 2.
Tebụl 2 Antenna nwere okpukpu abụọ dabere na WOMT
| Ụdị antenna nwere okpukpu abụọ | Atụmatụ | Ihe atụ |
| WOMT+Ọkọlọtọ mpi | • Na-enye ọkọlọtọ waveguide zuru oke na bandwit WG ugboro ugboro • Ugboro na-ekpuchi ruo 220 GHz • Lobes akụkụ dị ala • Ụkpụrụ uru nke 10, 15, 20, 25 dBi |
|
| WOMT+ Corrugated Feed Horn | • Na-enye ọkọlọtọ waveguide zuru oke na bandwit WG ugboro ugboro • Ugboro na-ekpuchi ruo 220 GHz • Lobes akụkụ dị ala • Mwepu polarization dị ala • Nweta ụkpụrụ nke 10 dBi |  |
Iji mụtakwuo maka antennas, biko gaa:
Oge nzipu: Sep-13-2024
