Apparatus and methods for staircase antennas are disclosed. In certain embodiments, patch antenna elements are formed on two or more conductive layers of a circuit board with the patch antenna elements interconnected by vias to form a staircase-shaped antenna. The staircase antenna communicates using a tilted beam during normal operation (for instance, with no phase shift). Thus, the staircase antenna radiates at an angle, for instance, a diagonal relative to a planar surface of the circuit board.

An antenna device (10) includes a substrate (100) including a first surface (102), a first antenna (200) provided on the substrate (100), a second antenna (300) provided on the substrate (100), and a third antenna (400) provided on the first surface (102) of the substrate (100), and a center point (CP) of the third antenna (400) is positioned on the same side as an end portion (EP2) of the second antenna (300) furthest from the first antenna (200), relative to a center line (CL) passing through a center of a line (L) connecting an end portion (EP1) of the first antenna (200) furthest from the second antenna (300) and the end portion (EP2) of the second antenna (300) furthest from the first antenna (200), or relative to a center line (CL) of the first surface (102) of the substrate (100).

A circuit element mounting portion provided on a dielectric substrate is configured so as to mount a high-frequency integrated circuit element, and includes a ground land and a plurality of high-frequency signal lands. The dielectric substrate is provided with an antenna element including at least one radiation element. The dielectric substrate is provided with an exposed terminal portion including an exposed ground land and an exposed high-frequency signal land. The dielectric substrate is provided with a first transmission line connecting one high-frequency signal land of the circuit element mounting portion and the radiation element. Furthermore, a second transmission line connecting another high-frequency signal land of the circuit element mounting portion and the high-frequency signal land of the exposed terminal portion, and a ground conductor connecting the ground land of the circuit element mounting portion and the ground land of the exposed terminal portion are provided.

An antenna assembly may include an excitation source configured to generate an excitation signal, an antenna radiator including a first end and an opposing second end, a reference ground disposed corresponding to the antenna radiator, adjacent to the first end and including a first surface adjacent to the first end and an opposing second surface adjacent to the second end, a support body arranged on the second surface of the reference ground and extending along a direction from the first end to the second end, and a conductive sheet arranged on the support body, adjacent and coupled to the second end and configured to transmit the excitation signal from the excitation source to the antenna radiator, the antenna radiator may be configured to generate an electromagnetic signal according to the excitation signal.

A circuit element mounting portion provided on a dielectric substrate is configured so as to mount a high-frequency integrated circuit element, and includes a ground land and a plurality of high-frequency signal lands. The dielectric substrate is provided with an antenna element including at least one radiation element. The dielectric substrate is provided with an exposed terminal portion including an exposed ground land and an exposed high-frequency signal land. The dielectric substrate is provided with a first transmission line connecting one high-frequency signal land of the circuit element mounting portion and the radiation element. Furthermore, a second transmission line connecting another high-frequency signal land of the circuit element mounting portion and the high-frequency signal land of the exposed terminal portion, and a ground conductor connecting the ground land of the circuit element mounting portion and the ground land of the exposed terminal portion are provided.

Disclosed is an antenna for enhancing link coupling efficiency in a power transmission. The antenna may comprise a plurality of coil windings layered across each other. It may be noted that each coil winding may be deployed with a plurality of edges. It may be understood that an edge is separated with another edge at a predetermined distance on each coil winding. It may be noted that the edge and the another edge is a subset of the plurality of edges.

An RFID device includes a substrate and an antenna. The antenna includes a first antenna section on a first side of the substrate and a second antenna section on the first side of the substrate and separated from the first antenna section by a non-conductive part of the substrate. The first antenna section includes a first plurality of vias that extend through the substrate from the first side of the substrate to a second side of the substrate. The antenna includes a third antenna section on at least the second side of the substrate to electrically connect conductive portions of the first plurality of vias to the second antenna section. The RFID device includes a circuit on the substrate and to process signals of the antenna.

A mountable antenna element is constructed as an object from a single piece of material and can be configured to transmit and receive RF signals, achieve optimized impedance values, and operate in a concurrent dual-band system. The mountable antenna element may have one or more legs, an RF signal feed, and one or impedance matching elements. The legs and RF signal feed can be coupled to a circuit board. The impedance matching elements can be utilized to create a capacitance with a portion of the circuit board and thereby optimize impedance of the antenna element at a desired operating frequency. The mountable antenna includes features that enable it for use in concurrent dual band operation with the wireless device. Because the mountable antenna element can be installed without needing additional circuitry for matching impedance and can be constructed from a single piece of material, the antenna element provides for more efficient manufacturing.

An RFID device includes a substrate and an antenna. The antenna includes a first antenna section on a first side of the substrate and a second antenna section on the first side of the substrate and separated from the first antenna section by a non-conductive part of the substrate. The first antenna section includes a first plurality of vias that extend through the substrate from the first side of the substrate to a second side of the substrate. The antenna includes a third antenna section on at least the second side of the substrate to electrically connect conductive portions of the first plurality of vias to the second antenna section. The RFID device includes a circuit on the substrate and to process signals of the antenna.

An apparatus and method for electromagnetic heating of a hydrocarbon formation is presented. The apparatus is a radio frequency antenna module in a radio frequency antenna for delivering electromagnetic energy generated by a generator into the hydrocarbon formation. The antenna module comprises: a conductive member; at least one conductive sheath with a first and second end surrounding at least one portion of the conductive member; at least one electrical coupler electrically coupled to the conductive member and the at least one conductive sheath for receiving the electrical energy; and an electrically insulating seal inserted at the first and second end of each of the at least one conductive sheath between the conductive member and the conductive sheath to maintain an enclosed cavity defined by the conductive member, the conductive sheath and the electrically insulating seal.