Mugwagwa wewaveguide (kana kuti gwara rewaveguide) itambo yekutumira ine gomba rakagadzirwa neconductor yakanaka. Imudziyo wekuparadzira simba remagetsi (kunyanya kuendesa mafungu emagetsi ane marefu ewave akaenzana nemasendimita) Zvishandiso zvakajairika (kunyanya kuendesa mafungu emagetsi ane marefu ewave akaenzana nemasendimita).
Kusarudzwa kwehukuru hwerectangular waveguide kunofanirwa kufunga nezvezvinhu zvinotevera:
1. Dambudziko rebandwidth yeWaveguide
Kuti tive nechokwadi chekuti mafungu emagetsi ari mukati mehuwandu hwema frequency akapihwa anogona kupararira mune imwe chete TE10 mode mu waveguide, mamwe ma modes epamusoro-soro anofanira kugurwa, wobva wadzvanya b
2. Dambudziko rekukwanisa simba reWaveguide
Pakupararira kwesimba rinodiwa, waveguide haigone kuputsika. Kuwedzera b zvakakodzera kunogona kuwedzera simba, saka b inofanira kunge yakakura sezvinobvira.
3. Kuderedza simba remafungu
Kana microwave yapfuura nemunzira yekufambisa mvura, zvinotarisirwa kuti simba harizorasikirwi zvakanyanya. Kuwedzera b kunogona kuita kuti attenuation iderere, saka b inofanira kuva yakakura sezvinobvira.
Tichifunga nezvezvinhu zvinokwezva, saizi yerectangular waveguide inowanzo sarudzwa se:
a=0.7λ, λ ndiyo muganhu wenguva weTE10
b=(0.4-0.5)a
Mazhinji ma waveguides e rectangular akagadzirwa ne aspect ratio ye a:b=2:1, inozivikanwa se standard waveguides, kuitira kuti bandwidth ratio yepamusoro ye 2:1 igone kuwanikwa, kureva kuti, chiyero che highest frequency kusvika lowest cutoff frequency i 2:1. Kuti simba riwedzere kugona, waveguide ine b>a/2 inonzi high waveguide; kuti kuderedza vhoriyamu nehuremu, waveguide ine b
Chiyero chikuru chebandwidth chinogona kuparadzirwa ne circular waveguide i1.3601:1, kureva kuti, chiyero che frequency yepamusoro ye single-mode kusvika kune yakaderera cut-off frequency i1.3601:1. Frequency inokurudzirwa yekushanda kwe rectangular waveguide ifrequency ye30% pamusoro pe cutoff frequency uye 5% pasi pe second highest mode cutoff frequency. Aya ma values anokurudzirwa anodzivirira kupararira kwe frequency pama frequency akaderera uye multimode operation pama frequency akakwira.
E-mail:info@rf-miso.com
Nhare: 0086-028-82695327
Webhusaiti: www.rf-miso.com
Nguva yekutumira: Chikumi-12-2023
