Surface-mount antenna and communication device with surface-mount antenna
First Claim
1. A surface-mounted antenna comprising an approximately rectangular parallelepiped-shaped dielectric base;
- wherein a radiating electrode is formed on an upper face of said dielectric base facing a board mounting bottom face, and wherein said radiating electrode comprises an electric-power-supplying-side radiating electrode and a non-electric-power-supplying-side radiating electrode positioned away from said electric-power-supplying-side radiating electrode with a predetermined spacing therebetween, configured so as to resonate based on electric power supplied via a rectifying circuit from an external electric power supplying circuit and to perform transmission and reception of radio waves;
wherein a shorting portion of said electric-power-supplying-side radiating electrode and a shorting portion of said non-electric-power-supplying-side radiating electrode are positioned on a side face of said dielectric base in close proximity with a predetermined spacing therebetween;
wherein an open end portion of said electric-power-supplying-side radiating electrode and an open end portion of said non-electric-power-supplying-side radiating electrode are positioned on mutually different sides so as to avoid the face of said dielectric base upon which said shorting portions are formed; and
wherein said rectifying circuit is formed on a side face of said dielectric base.
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Accused Products
Abstract
A first radiating electrode 5 and radiating electrode 6 are formed on an upper face 2c of a dielectric base 2 of a surface-mounted antenna 1, and a rectifying circuit 7 is formed on a side face 2b where radiating electrodes 5 and 6 are not formed. This facilitates configuration of a desired rectifying circuit 7 appropriate for the surface-mounted antenna 1, and rectification of the surface-mounted antenna 1 is facilitated. Also, since the rectifying circuit 7 is formed on the side face 2b of the dielectric base 2, effects of the rectifying circuit 7 on the first radiating electrode 5 and second radiating electrode 6 on the upper face 2c can be reduced. Accordingly, high gain and increased bandwidth of the surface-mounted antenna can be obtained.
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Citations
15 Claims
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1. A surface-mounted antenna comprising an approximately rectangular parallelepiped-shaped dielectric base;
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wherein a radiating electrode is formed on an upper face of said dielectric base facing a board mounting bottom face, and wherein said radiating electrode comprises an electric-power-supplying-side radiating electrode and a non-electric-power-supplying-side radiating electrode positioned away from said electric-power-supplying-side radiating electrode with a predetermined spacing therebetween, configured so as to resonate based on electric power supplied via a rectifying circuit from an external electric power supplying circuit and to perform transmission and reception of radio waves;
wherein a shorting portion of said electric-power-supplying-side radiating electrode and a shorting portion of said non-electric-power-supplying-side radiating electrode are positioned on a side face of said dielectric base in close proximity with a predetermined spacing therebetween;
wherein an open end portion of said electric-power-supplying-side radiating electrode and an open end portion of said non-electric-power-supplying-side radiating electrode are positioned on mutually different sides so as to avoid the face of said dielectric base upon which said shorting portions are formed; and
wherein said rectifying circuit is formed on a side face of said dielectric base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification