18882007. READING APPARATUS AND READING APPARATUS CASE (CANON KABUSHIKI KAISHA)
Contents
READING APPARATUS AND READING APPARATUS CASE
Organization Name
Inventor(s)
MITSUHIDE Murofushi of Shizuoka JP
READING APPARATUS AND READING APPARATUS CASE
This abstract first appeared for US patent application 18882007 titled 'READING APPARATUS AND READING APPARATUS CASE
Original Abstract Submitted
A reading apparatus includes an antenna element, a substrate including a ground plane and a communication circuit, and a housing. The housing has a plate-like shape having a length in a first direction that is shorter than a length in a second direction and a length in a third direction. The reading apparatus includes a parasitic element that is disposed apart from the substrate in the first direction and is disposed so as to overlap both of the antenna element and the ground plane when viewed in the first direction, the parasitic element resonating when the antenna element is excited. A length of the parasitic element in the second direction is shorter than ½ of a wavelength of an operation frequency that is used to transmit and receive the radio signal.
