Nkhani - chosinthira

Monga njira imodzi yodyetsera ma antenna a waveguide, kapangidwe ka microstrip kupita ku waveguide kamakhala ndi gawo lofunikira pakutumiza mphamvu. Chitsanzo chachikhalidwe cha microstrip kupita ku waveguide ndi motere. Probe yonyamula dielectric substrate ndikudyetsedwa ndi mzere wa microstrip imayikidwa mumpata womwe uli pakhoma lalikulu la rectangular waveguide. Mtunda pakati pa probe ndi khoma la short-circuit kumapeto kwa waveguide ndi pafupifupi kanayi kuposa kutalika kwa nthawi yogwirira ntchito. Pansi pa lingaliro la kusankha dielectric substrate, reactance ya probe imadalira kukula kwa mzere wa microstrip, ndipo reactance ya short-circuit waveguide imadalira malo a khoma la short-circuit. Ma parameter awa amakonzedwa bwino kuti akwaniritse impedance match of pure resistors ndikuchepetsa kutayika kwa mphamvu.

Kapangidwe ka Microstrip kupita ku waveguide m'mawonekedwe osiyanasiyana

Zogulitsa za RFMISO Microstrip Antenna:

RM-MA25527-22

RM-MA425435-22

Mlanduwu
Malinga ndi malingaliro a kapangidwe omwe aperekedwa m'mabuku, pangani chosinthira cha waveguide kupita ku microstrip chokhala ndi bandwidth yogwira ntchito ya 40 ~ 80GHz. Ma model ochokera m'malingaliro osiyanasiyana ndi awa. Monga chitsanzo chofala, chitsogozo cha wave chosakhala cha standard chimagwiritsidwa ntchito. Kukhuthala ndi kukhazikika kwa dielectric kwa zinthu za dielectric kumadalira Makhalidwe a impedance a microstrip probe adasinthidwa.
Zipangizo zoyambira: dielectric constant 3.0, makulidwe 0.127mm
Kukula kwa Waveguide a*b: 3.92mm*1.96mm
Kukula kwa mpata pakhoma lalikulu ndi 1.08*0.268, ndipo mtunda wochokera pakhoma la short-circuit ndi 0.98. Onani chithunzi cha ma parameter a S ndi makhalidwe a impedance.

Mawonekedwe akutsogolo

Mawonekedwe akumbuyo

Magawo a S: 40G-80G

Kutayika kwa insertion mu passband range ndi kochepera 1.5dB.

Makhalidwe a Impedance ya Port

Zref1: Kuyimitsidwa kwa mzere wa microstrip ndi 50 ohms, Zref1: Kuyimitsidwa kwa mafunde mu waveguide ndi pafupifupi 377.5 ohms;

Ma parameter omwe angakonzedwe bwino: kuya kwa probe insertion D, kukula kwa W*L ndi kutalika kwa mpata wochokera ku khoma la short-circuit. Malinga ndi central frequency point 45G, dielectric constant ndi 3.0, wavelength yofanana ndi 3.949mm, ndipo wavelength yofanana ndi kotala imodzi ndi pafupifupi 0.96mm. Ikakhala pafupi ndi kufananiza koyera kwa resistance, waveguide imagwira ntchito mu TE10 main mode, monga momwe zasonyezedwera mu electric field distribution pachithunzi chili pansipa.