Antenna apparatus and radio terminal apparatus

摘要

An antenna apparatus including: a first and second antenna elements which transmit or receive radio signal; a ground pattern; and a wiring pattern which is provided on a line segment connecting the first and second antenna elements, and directly connected to the ground pattern, wherein a circumventing path is formed by the wiring pattern and a part of the ground pattern.

主权项

1. An antenna apparatus, comprising:
a rectangular substrate including a first edge length which extends between a first end and a second end of the substrate, and a second edge length, which is orthogonal to the first edge length; a ground pattern provided on an area except a portion of the substrate; first and second antenna elements which transmit and receive radio signals, and are provided on the portion of the substrate and apart from each other; and a wiring pattern provided between the first and second antenna elements on the portion of the substrate, wherein both ends of the wiring pattern are connected to a part of the ground pattern so that a loop path is formed by the wiring pattern and the part of the ground pattern, and an electrical length of the loop path is one wavelength of the radio signal, and the loop path is a path from a contact point of the ground pattern and wiring pattern to the contact point via the wiring pattern and the ground pattern.