Transceiver and radio frequency identification tag reader
First Claim
1. A transceiver comprising:
- a transmission radiating element including a feeding point and arranged to transmit a transmission signal in a first polarization direction;
a receiving radiating element including a feeding point and arranged to receive a receiving signal in a second polarization direction orthogonal or substantially orthogonal to the first polarization direction;
a transmission feeding circuit coupled to the feeding point of the transmission radiating element;
a receiving feeding circuit coupled to the feeding point of the receiving radiating element;
a transmission circuit configured to supply a transmission signal to the transmission feeding circuit; and
a receiving circuit configured to receive a receiving signal via the receiving feeding circuit;
whereinthe transmission radiating element and the receiving radiating element are disposed on a surface of a substrate or in an inner layer of the substrate, and arranged in a common plane or in adjacent planes that are parallel or substantially parallel to one another and parallel or substantially parallel to an upper surface of the substrate;
the transmission radiating element and the receiving radiating element overlap each other in a plan view; and
the transmission radiating element is fixed so as to transmit the transmission signal while the receiving radiating element is fixed so as to receive the receiving signal.
1 Assignment
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Accused Products
Abstract
In a transceiver, on a top surface of a rectangular plate-shaped substrate, transmission radiating elements and receiving radiating elements are provided. The transmission radiating elements extend in the horizontal or lateral direction from the center of the substrate. The receiving radiating elements extend in the vertical or longitudinal direction from the center of the substrate. Inductors included in a matching feeding element are individually electromagnetically coupled to transmission-side feeding points that are inner end portions of the transmission radiating elements and receiving-side feeding points that are inner end portions of the receiving radiating elements. A transmission signal is transmitted with a wave polarized in the horizontal or lateral direction, and a signal having a vertical or longitudinal polarization direction is received.
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Citations
15 Claims
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1. A transceiver comprising:
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a transmission radiating element including a feeding point and arranged to transmit a transmission signal in a first polarization direction; a receiving radiating element including a feeding point and arranged to receive a receiving signal in a second polarization direction orthogonal or substantially orthogonal to the first polarization direction; a transmission feeding circuit coupled to the feeding point of the transmission radiating element; a receiving feeding circuit coupled to the feeding point of the receiving radiating element; a transmission circuit configured to supply a transmission signal to the transmission feeding circuit; and a receiving circuit configured to receive a receiving signal via the receiving feeding circuit;
whereinthe transmission radiating element and the receiving radiating element are disposed on a surface of a substrate or in an inner layer of the substrate, and arranged in a common plane or in adjacent planes that are parallel or substantially parallel to one another and parallel or substantially parallel to an upper surface of the substrate; the transmission radiating element and the receiving radiating element overlap each other in a plan view; and the transmission radiating element is fixed so as to transmit the transmission signal while the receiving radiating element is fixed so as to receive the receiving signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification