ANTENNA APPARATUS

• Main Authors: NAGUMO, SHOJI, NAKAZATO, MASASHI, NAKAO, MOTOYASU, SHINTOMI, YUJI
• Format: Patent
• Language: English; French; Japanese
• Published: 12.09.2013
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

A floating capacitance (Ca) is generated between an antenna element (21) and a ground electrode (51). A capacitive detection circuit (60) detects the floating capacitance (Ca). A variable matching circuit (30), i.e., an antenna matching circuit, is provided on a wireless communication signal path, w...