Antenna

摘要

An antenna comprising a laminate of dielectric ceramic layers each provided with electrode patterns, the laminate comprising a first terminal electrode connected to a feed line and a second terminal electrode for grounding on the lower surface, a radiation electrode on the upper surface or on a layer near the upper surface, and a coupling electrode between the lower surface and the radiation electrode; the coupling electrode being connected to the first terminal electrode through via-holes; the radiation electrode being connected to the second terminal electrode through via-holes; and the coupling electrode being partially opposite to the radiation electrode in a lamination direction to form a capacitance-coupling portion.

主权项

1. An antenna comprising a laminate of dielectric ceramic layers each provided with electrode patterns,
said laminate comprising a first terminal electrode connected to a feed line, a second terminal electrode for grounding and a third terminal electrode for grounding on the lower surface, a radiation electrode on the upper surface or on a layer near the upper surface, and a coupling electrode between said lower surface and said radiation electrode; said coupling electrode being connected to the first terminal electrode through via-holes; said radiation electrode having one end as an open end and the other end connected to the second terminal electrode through via-holes, said radiation electrode overlapping said third terminal electrode in a lamination direction via said dielectric ceramic layers; and said coupling electrode being partially opposite to said radiation electrode in a lamination direction to form a capacitance-coupling portion.