Nhau - shanduko

Seimwe yenzira dzekudyisa maantenna ewaveguide, dhizaini ye microstrip kuenda ku waveguide ine basa rakakosha mukufambiswa kwesimba. Muenzaniso wekare we microstrip kuenda ku waveguide ndewekuti. Probe inotakura dielectric substrate uye inopihwa ne microstrip line inopinzwa mugomba riri mumadziro akafara e rectangular waveguide. Daro riri pakati pe probe ne short-circuit wall pakupera kwe waveguide rinopetwa kanenge kana kupfuura operating wavelength. Panyaya yekusarudza dielectric substrate, reactance ye probe inoenderana nehukuru hwe microstrip line, uye reactance ye short-circuit waveguide inoenderana nenzvimbo ye short-circuit wall. Aya ma parameter akagadziridzwa zvakakwana kuti awane impedance matching ye pure resistors uye kuderedza simba rekutapurirana.

Chimiro cheMicrostrip kuenda ku waveguide mumaonero akasiyana

Zvigadzirwa zveRFMISO Microstrip Antenna series:

RM-MA25527-22

RM-MA425435-22

Nyaya
Zvichienderana nepfungwa dzekugadzira dzakapihwa mumabhuku, gadzira waveguide kuenda ku microstrip converter ine bandwidth inoshanda ye40 ~ 80GHz. Mamodheru anobva pamaonero akasiyana ndeaya anotevera. Semuenzaniso wakajairika, waveguide isiri standard inoshandiswa. Ukobvu uye dielectric constant yezvinhu zve dielectric zvakavakirwa pa. Hunhu hwe impedance hwe microstrip probe hwakagadziriswa.
Zvinhu zvekutanga: dielectric constant 3.0, ukobvu 0.127mm
Saizi yeWaveguide a*b: 3.92mm*1.96mm
Saizi yemukana uri pamadziro akafara i1.08*0.268, uye daro kubva pamadziro e-short-circuit i0.98. Ona mufananidzo weS parameters uye hunhu hweimpedance.

Kuona mberi

Kuona kumashure

S parameters: 40G-80G

Kurasikirwa kwekuisa muhuwandu hwepassband kushoma pane 1.5dB.

Hunhu hwePort impedance

Zref1: Kupindira kwekupinda kwemutsara we microstrip i50 ohms, Zref1: Kupindira kwewave mu waveguide i377.5 ohms;

Maparamita anogona kugadziriswa: kudzika kweprobe insertion D, saizi W*L uye kureba kwemukana kubva pamadziro eshort-circuit. Zvichienderana ne centre frequency point 45G, dielectric constant i3.0, wavelength yakaenzana i3.949mm, uye wavelength yakaenzana nekota imwe inenge 0.96mm. Kana iri pedyo ne pure resistance matching, waveguide inoshanda mu TE10 main mode, sezvakaratidzwa mu electric field distribution mumufananidzo uri pazasi.