Mumunda wearray antennas, beamforming, inozivikanwawo se spatial kusefa, inzira yekugadzira masaini inoshandiswa kufambisa uye kugamuchira mafungu eredhiyo asina waya kana masaisai eruzha nenzira inonanga.Beamforming inowanzoshandiswa mu radar uye sonar masisitimu, isina waya kutaurirana, acoustics, uye biomedical michina.Kazhinji, kupenya uye kutarisisa danda kunoitwa nekuisa hukama hwechikamu pakati pechikafu uye chimwe nechimwe chinhu cheantenna array kuitira kuti zvinhu zvese zvitumire kana kugashira masaini muchikamu mune yakananga nzira.Panguva yekutapurirana, iyo beamformer inodzora chikamu uye hukama hukuru hwechiratidzo chega chega chekutumira kuti igadzire inovaka uye inoparadza kupindira maitiro pawavefront.Munguva yekugamuchira, iyo sensor array configuration inotungamira kugamuchirwa kweinodiwa radiation pateni.
Beamforming Technology
Beamforming inzira inoshandiswa kutungamira danda remwaranzi pateni kuenda kune inodiwa nzira ine mhinduro yakagadziriswa.Beamforming uye beam scanning yeantennaarray inogona kuwanikwa nechikamu chekuchinja system kana nguva yekunonoka system.
Phase Shift
Mune narrowband systems, kunonoka kwenguva kunonziwo phase shift.Paredhiyo frequency (RF) kana yepakati frequency (IF), kupenya kunogona kuwanikwa nechikamu chekuchinja neferrite phase shifters.Pabaseband, kuchinjika kwechikamu kunogona kuwanikwa nedhijitari chiratidzo chekugadzirisa.Mukushanda kwebroadband, kunonoka-kunonoka kugadzirwa kunofarirwa nekuda kwekuda kwekuita kutungamira kwedanda guru risingawirirane ne frequency.
RM-PA17731
RM-PA10145-30(10-14.5GHz)
Nguva inononoka
Nguva inononoka inogona kuunzwa nekushandura kureba kwetambo yekutumira.Sekuchinja kwechikamu, kunonoka kwenguva kunogona kuunzwa paredhiyo frequency (RF) kana yepakati frequency (IF), uye kunonoka kwenguva kwakaunzwa nenzira iyi kunoshanda zvakanaka pamusoro pehuwandu hwakawanda.Nekudaro, iyo bandwidth yenguva-yakaongororwa array inoganhurwa nebandwidth ye dipoles uye yemagetsi spacing pakati pe dipoles.Kana iyo frequency yekushanda ichiwedzera, nzvimbo yemagetsi pakati pema dipoles inowedzera, zvichikonzera imwe dhigirii yekutetepa kwehupamhi hwedanda pane yakakwirira frequency.Kana iyo frequency ichiwedzera kuwedzera, inozopedzisira yatungamira kune grating lobes.Muchikamu chechikamu, grating lobes ichaitika kana iyo beamforming nzira inodarika kukosha kwepamusoro kwedanda guru.Chiitiko ichi chinokonzera kukanganisa mukugoverwa kwedanda guru.Naizvozvo, kuitira kudzivirira grating lobes, iyo antenna dipoles inofanirwa kunge iine nzvimbo yakakodzera.
Zviyereso
Iyo huremu vector ndeye yakaoma vector iyo amplitude chikamu chinotarisa iyo sidelobe nhanho uye huru danda hupamhi, nepo chikamu chikamu chinotarisa hombe danda angle uye isina chinzvimbo.Huremu hwechikamu chenarrowband arrays inoshandiswa ne phase shifters.
RM-PA7087-43(71-86GHz)
RM-PA1075145-32(10.75-14.5GHz)
Beamforming Dhizaini
Antennas anogona kujairana neRF nharaunda nekuchinja maitiro awo emwaranzi anonzi anoshanda phased array antennas.Beamforming dhizaini inogona kusanganisira Butler matrix, Blass matrix, uye Wullenweber antenna arrays.
Butler Matrix
Iyo Butler Matrix inosanganisa 90 ° bhiriji nechikamu chekuchinja kuti uwane chikamu chekuvhara chakafara se360 ° kana oscillator dhizaini uye Directivity pateni yakakodzera.Danda rega rega rinogona kushandiswa neakazvipira transmitter kana anogamuchira, kana neamwechete transmitter kana inogamuchira inodzorwa neRF switch.Neiyi nzira, iyo Butler Matrix inogona kushandiswa kutungamira danda redenderedzwa rakatenderera.
Brahs Matrix
Iyo Burras matrix inoshandisa mitsara yekutapurirana uye inotungamira macouplers kuita nguva-inononoka bhenji yekushanda kwebroadband.Iyo Burras matrix inogona kugadzirwa seyakavhurika beamformer, asi nekuda kwekushandiswa kwekumisa kumisa, ine yakanyanya kurasikirwa.
Woolenweber antenna array
Iyo Woollenweber antenna array idenderedzwa rinoshandiswa kutungamira kutsvaga maapplication muyepamusoro frequency (HF) bhendi.Rudzi urwu rweantenna array inogona kushandisa chero omnidirectional kana inotungamira zvinhu, uye huwandu hwezvinhu hunowanzo 30 kusvika zana, iyo chikamu chimwe muzvitatu chakatsaurirwa kuita sequentially kuumba matanda ane kutungamira.Chinhu chega chega chakabatana neredhiyo inokwanisa kudzora huremu hwehuremu hweantenna array pateni kuburikidza negoniometer inokwanisa kuongorora 360 ° pasina shanduko muhunhu hweantenna.Uye zvakare, iyo antenna array inoumba danda rinopenya kunze kubva kune antenna array kuburikidza nekunonoka kwenguva, nekudaro kuwana Broadband kushanda.
Kuti udzidze zvakawanda nezve antennas, ndapota shanya:
Nguva yekutumira: Jun-07-2024
