Conversion apparatus from chip package to waveguide, radio frequency apparatus and radar apparatus

Abstract

The present application discloses a conversion apparatus from a chip package to a waveguide, a radio frequency apparatus and a radar apparatus. The conversion apparatus includes: a first metal layer as a metal ground layer, a second metal layer, a third metal layer, a shielding metallization via, a conversion via, and a dielectric substrate disposed between different metal layers to function as a support; the second metal layer is configured to lay an RF trace; the third metal layer is configured to dispose a patch element; a capacitance formed between the RF trace and patch element introduces capacitance characteristic; multiple shielding metallization vias are ground vias around the patch element and RF trace for guiding RF signal propagation; at least one conversion metallization via is disposed on one end of the RF trace close to the patch element, for connecting the RF trace and patch element and introducing inductance characteristic.