Antenna and wireless communication device
作者： Kenichi Ishizuka , Kazunari Kawahata
DOI:
关键词: Antenna (radio) 、 Loop antenna 、 Electrical length 、 Antenna tuner 、 Electrical engineering 、 Antenna rotator 、 Antenna measurement 、 Antenna efficiency 、 Antenna factor 、 Engineering
摘要: An antenna wherein a plurality of resonance frequencies can be changed by desired range at the same time low voltage, and wireless communication device are provided. The (1) is provided with first section (2) second (3). composed power supply electrode (5), frequency variable circuit (4) an emission (6). (3) reactance (4a) added (7). has structure connected (4b). When control voltage (Vc) applied to contact point (P), values circuits (4a, 4b) change corresponding magnitude (Vc), (f1) (f2) time.
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