Patent application number | Description | Published |
20110279349 | CHIP ANTENNA AND ANTENNA APPARATUS - A chip antenna and an antenna apparatus, which allow the resonance frequency of the antenna to be set with a high degree of freedom, include a feeding electrode formed on the bottom surface, fourth side surface, and top surface of a dielectric substrate, a non-feeding electrode formed on the bottom surface, third side surface, and top surface of the dielectric substrate, wherein the leading ends of the feeding electrode and the non-feeding electrode are facing each other with a predetermined distance therebetween on the top surface of the dielectric substrate. The chip antenna and antenna apparatus further include a frequency adjusting electrode formed on the first side surface of the dielectric substrate, and ground electrodes connected to ground electrodes of a circuit substrate on which the chip antenna is mounted, wherein the ground electrodes are electrically connected to the frequency adjusting electrode and are formed on the bottom surface of the dielectric substrate. | 11-17-2011 |
20110298683 | CHIP ANTENNA AND ANTENNA DEVICE - This disclosure provides a chip antenna and an antenna device including the chip antenna. The chip antenna is not likely to be affected by a ground electrode located lower than the chip antenna when the chip antenna is mounted on a circuit board, and can have resulting small frequency variation and small reduction in gain. The chip antenna includes a dielectric substrate having a bottom face, a top face, a first side face, a second side face, a third side face, and a fourth side face. A non-feeding electrode extends from the fourth side face to the top face, another non-feeding electrode extends from the third side face to the top face. An end of the non-feeding electrode and an end of the non-feeding electrode face each other on the top face with a certain space therebetween. The bottom face includes bottom-face electrodes electrically connected to the non-feeding electrodes and a bottom-face electrode electrically connected to a feeding electrode. | 12-08-2011 |
20120146856 | FLEXIBLE SUBSTRATE ANTENNA AND ANTENNA DEVICE - This disclosure provides a flexible substrate antenna and antenna device including a flexible substrate antenna. The flexible substrate antenna includes a first parasitic radiation electrode and a second parasitic radiation electrode provided on the flexible substrate, where a leading ends (open ends) of the first parasitic radiation electrode and the second parasitic radiation electrode face each other with a slit of a predetermined gap therebetween. Further, a capacitive feed electrode is formed on the flexible substrate at a position facing the first parasitic radiation electrode, and is configured to capacitively feed power to the first parasitic radiation electrode. | 06-14-2012 |
20130162488 | ANTENNA UNIT AND RADIO COMMUNICATION DEVICE - An antenna unit and a radio communication device are provided. An antenna unit has a monopole antenna section and a loop antenna section. The monopole antenna section includes a linear radiating electrode that resonates at a first frequency and has an electrical length of one-quarter of the wave length corresponding to the first frequency. The loop antenna section includes a radiating electrode that resonates at a second frequency, is vertically erected on a non-ground region, and connected to a feed line. A proximal end of the radiating electrode of the loop antenna section is connected to an intermediate portion of the feed line, and a distal end thereof is connected to a ground region. The electrical length of the radiating electrode of the loop antenna section is one-half of the wave length of the second frequency. | 06-27-2013 |