Patent ID: 6936921

Claim:
A high-frequency package comprising: a dielectric substrate, on one face of which a mounting portion of a high-frequency circuit component is formed; a first line conductor, formed on the one face of the dielectric substrate from a vicinity of the mounting portion in an outer periphery direction, for transmitting high-frequency signals; a first coplanar grounding conductor formed on both sides of the first line conductor on the one face of the dielectric substrate; a second line conductor, formed on another face of the dielectric substrate toward an outer periphery edge so that an end portion thereof faces an outer-periphery-side end portion of the first line conductor, for transmitting the high-frequency signals; a second coplanar grounding conductor formed on both sides of the second line conductor on the other face of dielectric substrate; a through conductor, formed inside the dielectric substrate, for electrically connecting the facing end portions of the first and second line conductors; a grounding through conductor, formed inside the dielectric substrate, for electrically connecting the first and second coplanar grounding conductors; a metal terminal bonded to the second line conductor in parallel; and grounding metal terminals bonded to the second coplanar grounding conductors on both sides of the metal terminal in parallel, respectively, wherein a gap between the grounding metal terminals is equal to or less than one half of a wavelength of the high-frequency signals.