LINE INTERLAYER CONNECTOR, PLANAR ARRAY ANTENNA HAVING LINE INTERLAYER CONNECTOR AND PLANAR ARRAY ANTENNA MODULE

PROBLEM TO BE SOLVED: To provide a line interlayer connector capable of responding to a narrow pitch.SOLUTION: The line interlayer connector comprises: a triplate line formed by arranging a power feed substrate (9) having a power feed line (8) formed therein; and a microstrip line that includes a power feed substrate (11) having a power feed line (10) formed on a dielectric body (6) and a ground conductor (3) arranged at a lower part of the power feed substrate (11). The line interlayer connector has such a structure that a patch pattern (18a) is formed at a connection termination portion of the power feed line (8) on the power feed substrate (9), a patch pattern (18b) is formed at such a position as to be overlapped with the patch pattern (18a) on the power feed line (10), shield spacers (12a and 12b) are provided each of which has a hollow part that is formed into a shape larger than a shape including the patch pattern (18a) and the power feed line (8), a slit (13) is formed in a ground conductor (2) that is placed approximately in the middle between the patch pattern (18a) and the patch pattern (18b), and a slit (14) is formed in the ground conductor (3) that corresponds a portion located approximately in the middle.