The present invention discloses a sector dual-resonant dipole antenna. Radiation elements of the antenna are two identical sector patches. Two identical rectangular notches can be symmetrically arranged or two identical tuning stubs can be symmetrically loaded on the sector patches at positions deviating from the central axis of the two sector patches. Exciting points are symmetrically arranged on sides of the sector patches close to a central axis. The present invention realizes a wide beamwidth radiation characteristic through a two-dimensional sectorial resonator, and then the notches are arranged or the tuning stubs are loaded at appropriate positions of two arms of the sectorial resonator, and thereby a dual-resonant characteristic can be realized within a working band.

An antenna device including: a ground plane; an antenna pattern overlapping the ground plane with respect to a first direction; a dielectric layer interposed between the ground plane and the antenna pattern; a feed via coupled with the antenna pattern and penetrating at least a portion of the dielectric layer; a ground via connected to the ground plane and penetrating at least a portion of the dielectric layer; and a ground pattern extending from the ground via and disposed adjacent to a lateral surface of the feed via in a second direction that forms a predetermined angle with the first direction.

An antenna device including: a ground plane; an antenna pattern overlapping the ground plane with respect to a first direction; a dielectric layer interposed between the ground plane and the antenna pattern; a feed via coupled with the antenna pattern and penetrating at least a portion of the dielectric layer; a ground via connected to the ground plane and penetrating at least a portion of the dielectric layer; and a ground pattern extending from the ground via and disposed adjacent to a lateral surface of the feed via in a second direction that forms a predetermined angle with the first direction.

The present invention provides a balanced dipole unit and a broadband omnidirectional collinear array antenna formed by the balanced dipole unit. Balanced dipole unit circuits in the balanced dipole unit are symmetrically distributed on two sides of a circuit carrier, and a feeder and a ground wire in the balanced dipole unit are also symmetrically distributed, so that the balanced dipole unit has a completely symmetrical structure. A principle of the symmetrical structure is the same as a differential design principle and a self-balancing principle in the circuit design, thereby reducing current coupling between the balanced dipole units and eliminating the need of using an additional choke circuit when a broadband omnidirectional collinear array antenna is formed by the balanced dipole unit.

The present invention provides a balanced dipole unit and a broadband omnidirectional collinear array antenna formed by the balanced dipole unit. Balanced dipole unit circuits in the balanced dipole unit are symmetrically distributed on two sides of a circuit carrier, and a feeder and a ground wire in the balanced dipole unit are also symmetrically distributed, so that the balanced dipole unit has a completely symmetrical structure. A principle of the symmetrical structure is the same as a differential design principle and a self-balancing principle in the circuit design, thereby reducing current coupling between the balanced dipole units and eliminating the need of using an additional choke circuit when a broadband omnidirectional collinear array antenna is formed by the balanced dipole unit.

The disclosure concerns an antenna system having a clearance zone coupled to an antenna element, the clearance zone being further coupled to a ground plane. The antenna element and ground plane are electrically coupled by a short cable having a short cable routing. The short cable routing includes at least one bend wherein a portion of the short cable is disposed above the clearance zone. The short cable creates a bridging effect which reduces form factor while retaining lower frequency resonance.

The disclosure concerns an antenna system having a clearance zone coupled to an antenna element, the clearance zone being further coupled to a ground plane. The antenna element and ground plane are electrically coupled by a short cable having a short cable routing. The short cable routing includes at least one bend wherein a portion of the short cable is disposed above the clearance zone. The short cable creates a bridging effect which reduces form factor while retaining lower frequency resonance.

A thin antenna includes an antenna element, a first spacer, a second spacer, a first ground plane and a second ground plane. The antenna element is formed in a column shape, and has a top surface and a bottom surface facing each other. The first and second spacers are made of an insulating material. The first ground plane is formed larger than the top surface of the antenna element. The second ground plane is formed larger than the bottom surface of the antenna element. The first ground plane is disposed to face the top surface of the antenna element via the first spacer. The second ground plane is disposed to face the bottom surface of the antenna element via the second spacer. A power is fed at one of the top surface and the bottom surface of the antenna element.

A thin antenna includes an antenna element, a first spacer, a second spacer, a first ground plane and a second ground plane. The antenna element is formed in a column shape, and has a top surface and a bottom surface facing each other. The first and second spacers are made of an insulating material. The first ground plane is formed larger than the top surface of the antenna element. The second ground plane is formed larger than the bottom surface of the antenna element. The first ground plane is disposed to face the top surface of the antenna element via the first spacer. The second ground plane is disposed to face the bottom surface of the antenna element via the second spacer. A power is fed at one of the top surface and the bottom surface of the antenna element.

An antenna element and an antenna array including the antenna element for generating or receiving a radio frequency (RF) signal are provided. The antenna element includes a dielectric layer including a first surface and a second surface opposite the first surface; a first dipole antenna comprising a first antenna segment and a second antenna segment, the first dipole antenna formed in the second surface; a second dipole antenna comprising a first antenna segment and a second antenna segment, the second dipole antenna formed in the second surface; a coupling segment capacitively coupled to each of the second antenna segment of the first dipole antenna and the second antenna segment of the second dipole antenna; and a shorting pin capacitively coupled to the coupling segment and extending from the first surface to the second surface.