Patent ID: 9509048
Filing Date: 2016-11-29
CPC Classification: H01Q

Claim Text:
1. An antenna apparatus comprising: a first antenna element having an end connected to a feed terminal and another end kept open, an element length from the feed terminal to the another end being set to substantially a quarter of a wavelength corresponding to a preset first resonance frequency; and a second antenna element having an end connected to a first point of the first antenna element, and having a first other end and a second other end kept open, the second antenna element including a first antenna portion and a second antenna portion, the first antenna portion extending from the feed terminal to the first other end, an element length of the first antenna portion being set to substantially a quarter of a wavelength corresponding to a preset second resonance frequency, the second antenna portion extending from the feed terminal and bifurcated from the first antenna portion at a second point between the first point and the first other end at the path of the first antenna portion, an element length of the second antenna portion being set to substantially ¾ of a wavelength corresponding to a preset third resonance frequency; and a capacitor element provided between the feed terminal and the first point, wherein the second antenna portion includes a first portion extending from the feed terminal to the second point, and a second portion extending from the second point to the second other end; and the second portion is interposed between the first portion and a ground portion.