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END-LAUNCHED MICRO-STRIP LINE (OR STRIPLINE) TO WAVEGUIDE TRANSITION USING A CAVITY BACKED SLOT FED BY AT-SHAPED MICROSTRIP LINE
END-LAUNCHED MICRO-STRIP LINE (OR STRIPLINE) TO WAVEGUIDE TRANSITION USING A CAVITY BACKED SLOT FED BY AT-SHAPED MICROSTRIP LINE
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机译：端部微带线（或带状线）通过异形微带线馈入的带腔背隙槽进行波导过渡
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摘要
A low profile, compact microstrip-to-waveguide or stripline-to- waveguide transition. The end of the waveguide is terminated in a cavity backed slot defined in a groundplane formed on a dielectric substrate. The slot is excited by a microstrip or stripline conductor defined on the opposite side of the substrate. The conductor is terminated in a T-shaped junction including two opposed arms extending along the slot, each having a length equal to one-quarter wavelength at the center frequency of operation. A cavity covers the substrate on the conductor side, and is sized so that no cavity modes resonate in the frequency band of operation. The transition is matched by appropriate selection of the length of the slot and the length and position of the microstrip.
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