Circuit board structure with waveguide and method for manufacturing the same

A method for manufacturing a circuit board structure with a waveguide, the method comprising:

• providing a first substrate unit, a second substrate unit, and an adhesive layer, the first substrate unit comprising a first dielectric layer and a first conductive layer disposed on the first dielectric layer, the first conductive layer comprising a first shielding area and two first artificial magnetic conductor areas disposed on two sides of the first shielding area;
• the second substrate unit comprising a second dielectric layer and a second conductive layer disposed on the second dielectric layer;
• a surface of the second dielectric layer away from the second conductive layer being recessed inwardly to define a first slot, the second conductive layer at least disposed at a bottom surface and sidewalls of the first slot, the second conductive layer on the bottom surface and the sidewalls forming a second shielding area which is hollow, and the adhesive layer defining a second slot;
• stacking the first substrate unit, the adhesive layer, and the second substrate unit in that order, causing the first slot and the second slot to communicate with each other to form a cavity, and the first shielding area and the second shielding areas to be disposed on two sides of the cavity, thereby obtaining an intermediate body;
• pressing the intermediate body, causing the cavity having the first shielding area and the second shielding area to form the waveguide, thereby obtaining the circuit board structure.

A circuit board structure with a waveguide, the circuit board structure further comprising:

• a circuit board, the waveguide disposed in the circuit board, the circuit board comprising a first substrate unit, one adhesive layer, a third substrate unit, another adhesive layer, and a second substrate unit stacked in that order;
• wherein the first substrate unit comprises a first dielectric layer and a first conductive layer disposed on the first dielectric layer, the first conductive layer comprises a first shielding area and two first artificial magnetic conductor areas disposed at two sides of the first shielding area;
• the second substrate unit comprises a second dielectric layer and a second conductive layer disposed on the second dielectric layer, the second conductive layer comprises a second shielding area;
• the third substrate unit defines a first slot, and the adhesive layer defines a second slot;
• wherein the first slot and the second slot communicate with each other to form a cavity, the first shielding area and the second shielding area are disposed on two sides of the cavity, and the cavity having the first shielding area and the second shielding area forms the waveguide.