Communication system using transmit/receive slot antennas for near field electromagnetic coupling of data therebetween
First Claim
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1. An antenna apparatus for use in a transmitter or a receiver in a communication system, the antenna apparatus comprising:
- a dielectric substrate having a conductor layer on one surface thereof; and
a slot antenna includingan antenna electrode formed from the conductor layer on the one surface,a grounded conductive surface formed from the conductor layer on the one surface to surround the antenna electrode, anda slot transmission line formed as a gap between the antenna electrode and the grounded conductive surface,the slot antenna further including two feed points of the slot transmission line, one of the two feed points coupling the slot transmission line to ground via a resistor.
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Abstract
An antenna apparatus for use in a transmitter or a receiver in a communication system. The antenna apparatus includes: a dielectric substrate having a conductor layer on one of surfaces; and a slot antenna including an antenna electrode formed on the one surface and disposed substantially at the center, a grounded conductive surface surrounding the antenna electrode, and a slot transmission line made by a gap between the antenna electrode and the grounded conductive surface.
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Citations
16 Claims
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1. An antenna apparatus for use in a transmitter or a receiver in a communication system, the antenna apparatus comprising:
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a dielectric substrate having a conductor layer on one surface thereof; and a slot antenna including an antenna electrode formed from the conductor layer on the one surface, a grounded conductive surface formed from the conductor layer on the one surface to surround the antenna electrode, and a slot transmission line formed as a gap between the antenna electrode and the grounded conductive surface, the slot antenna further including two feed points of the slot transmission line, one of the two feed points coupling the slot transmission line to ground via a resistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A communication system comprising:
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a transmission slot antenna having a ring-shaped slot transmission line between an antenna electrode and a grounded conductor surface at a transmitter side; and a receiving slot antenna having a ring-shaped slot transmission line between an antenna electrode and a grounded conductor surface at a receiver side, wherein the transmission slot antenna and the receiving slot antenna are disposed in proximity, and data transmission is performed using a near-field electromagnetic coupling effect produced between the slot transmission lines of the transmission slot antenna and the receiving slot antenna, and the transmission slot antenna further including two feed points of the slot transmission line, one of the two feed points coupling the slot transmission line to ground via a resistor. - View Dependent Claims (16)
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Specification