Abstract: A low-profile circularly polarized isoflux antenna module is provided, which relates to the field of microelectronic antennas, and provides a solution to solve the contradiction between size and gain in conventional technology. The antenna module includes an antenna array, a substrate, a connection plate, and a feeding plate that are stacked in sequence. The feeding network on the feeding plate is electrically connected to the antenna array through probe passing through the connection plate and the substrate. The antenna array includes two or more concentrically distributed antenna elements, and each antenna element forms mutually independent concentric circularly polarized apertures through feed control. The structure is simple to assemble and easy to process, light in weight, small in size, and low in profile.

Abstract: A coupling-offset path branch and a high-isolation millimeter-wave phased array antenna based on the same. The high-isolation millimeter-wave phased array antenna includes a plurality of radiating stacked microstrip patch elements, a shielding metal wall, several coupling-offset path branches, a metal ground plane, a feeding network layer, several ports, wherein the first port is excited, energy of the feeding network layer is coupled to a corresponding radiating stacked microstrip patch element through an I-shaped slot, and the energy is transmitted to the second port adjacent to the first port through an inherent coupling path portion; the coupling-offset path branch is introduced to offset the inherent coupling, thus achieving a high-isolation performance between the first port and the second port. By adopting the simple decoupling branch, the invention can achieve a high-isolation effect in a wide band, improve an active standing-wave ratio and a scanning capability of the array antenna.

Abstract: A low-profile circularly polarized isoflux antenna module is provided, which relates to the field of microelectronic antennas, and provides a solution to solve the contradiction between size and gain in conventional technology. The antenna module includes an antenna array, a substrate, a connection plate, and a feeding plate that are stacked in sequence. The feeding network on the feeding plate is electrically connected to the antenna array through probe passing through the connection plate and the substrate. The antenna array includes two or more concentrically distributed antenna elements, and each antenna element forms mutually independent concentric circularly polarized apertures through feed control. The structure is simple to assemble and easy to process, light in weight, small in size, and low in profile.

Abstract: A coupling-offset path branch and a high-isolation millimeter-wave phased array antenna based on the same. The high-isolation millimeter-wave phased array antenna includes a plurality of radiating stacked microstrip patch elements, a shielding metal wall, several coupling-offset path branches, a metal ground plane, a feeding network layer, several ports, wherein the first port is excited, energy of the feeding network layer is coupled to a corresponding radiating stacked microstrip patch element through an I-shaped slot, and the energy is transmitted to the second port adjacent to the first port through an inherent coupling path portion; the coupling-offset path branch is introduced to offset the inherent coupling, thus achieving a high-isolation performance between the first port and the second port. By adopting the simple decoupling branch, the invention can achieve a high-isolation effect in a wide band, improve an active standing-wave ratio and a scanning capability of the array antenna.

Abstract: A quadrature voltage-controlled oscillator circuit with phase shift includes two voltage-controlled oscillators with the same structure, wherein the two voltage-controlled oscillators are connected to each other through input and output ports, and the two voltage-controlled oscillators respectively include a cross-coupled oscillating circuit, an injection locking circuit, a resonant circuit and a voltage-controlled current source circuit which are electrically connected to each other; and signals are injected through the injection locking circuit and coupled with the oscillating circuit, so as to output a quadrature signal. An oscillator is enabled to operate stably in one mode by means of a simple circuit structure, and a good phase shift can be provided for the resonant circuit in a lower frequency band; and meanwhile, a tuning range of the oscillator is improved without increasing phase noise.

Abstract: A quadrature voltage-controlled oscillator circuit with phase shift includes two voltage-controlled oscillators with the same structure, wherein the two voltage-controlled oscillators are connected to each other through input and output ports, and the two voltage-controlled oscillators respectively include a cross-coupled oscillating circuit, an injection locking circuit, a resonant circuit and a voltage-controlled current source circuit which are electrically connected to each other; and signals are injected through the injection locking circuit and coupled with the oscillating circuit, so as to output a quadrature signal. An oscillator is enabled to operate stably in one mode by means of a simple circuit structure, and a good phase shift can be provided for the resonant circuit in a lower frequency band; and meanwhile, a tuning range of the oscillator is improved without increasing phase noise.

Abstract: Systems and methods which provide an antenna in a chip-and-package distributed configuration as disclosed. Chip-and-package distributed antenna configurations of embodiments comprise an on-chip integrated circuit component and an in-package component. For example, embodiments of a chip-and-package distributed antenna comprise an exciting element on chip (i.e., formed as an integrated component in an integrated circuit die) and a primary radiator in package (i.e., disposed within an package while being external to the integrated circuit die). The on-chip exciting element may be configured to excite electromagnetic waves and to provide relatively wide bandwidth operation while occupying a relatively small area of the die. The in-package primary radiator may be configured to leverage the relatively large space in the integrated circuit product package to enhance the gain and/or configure the radiation pattern of RF signals with respect to the exciting element.

Abstract: An antenna (e.g., circularly polarized (CP) planar aperture antenna) is presented herein. An antenna can include an opening cavity and a patch section within a perimeter of the opening cavity. The patch section can have crossed patch in a windmill shape. The opening cavity can have a windmill shape. The patch section can be fed differentially via grounded co-planar waveguide (GCPW). The antenna can be formed in a single layer substrate and can be 180° rotationally symmetric about its center. A height of the opening cavity can be quarter-wavelength at operating frequency and a diameter of the opening cavity can be larger than one wavelength at operating frequency.

Abstract: Systems and methods which provide an antenna in a chip-and-package distributed configuration as disclosed. Chip-and-package distributed antenna configurations of embodiments comprise an on-chip integrated circuit component and an in-package component. For example, embodiments of a chip-and-package distributed antenna comprise an exciting element on chip (i.e., formed as an integrated component in an integrated circuit die) and a primary radiator in package (i.e., disposed within an package while being external to the integrated circuit die). The on-chip exciting element may be configured to excite electromagnetic waves and to provide relatively wide bandwidth operation while occupying a relatively small area of the die. The in-package primary radiator may be configured to leverage the relatively large space in the integrated circuit product package to enhance the gain and/or configure the radiation pattern of RF signals with respect to the exciting element.

Abstract: A planar differential aperture antenna that has a high gain and wide bandwidth at a millimeter wave band is provided. The differential aperture antenna has a cavity within it that has a height of roughly a quarter of a wavelength of the desired transmission band. The cavity is H-shaped, and has a cross shaped patch within the cavity that is fed differentially by two grounded coplanar waveguides. Two ends of the patch extend towards the ports on either side of the differential aperture antenna, and the other two ends of the patch extend into the cavity lobes, perpendicular with respect to the ports.

Abstract: An omni circularly-polarized antenna comprises: upper and lower layers of metal strips placed horizontally and having identical spoke-like shapes, each of the layers of said metal strips composed of a center and a plurality of spokes connected to the center, the plurality of spokes, at a circumferential position of the spoke-like shape, having extensions extending towards an identical direction along the circumference, wherein extending directions of the extensions of the spokes in the upper and lower layers of metal strips are opposite; metal poles with a number being identical with a number of the spokes in the metal strips, the metal poles vertically interconnecting ends of the extensions of the spokes in the upper and lower layers of metal strips; a coaxial connector comprising an elongated inner conductor and an outer conductor, wherein the elongated inner conductor is connected to the center of the upper layer of metal strip, and the outer conductor is connected to the center of the lower layer of metal

Abstract: An antenna (e.g., circularly polarized (CP) planar aperture antenna) is presented herein. An antenna can include an opening cavity and a patch section within a perimeter of the opening cavity. The patch section can have crossed patch in a windmill shape. The opening cavity can have a windmill shape. The patch section can be fed differentially via grounded co-planar waveguide (GCPW). The antenna can be formed in a single layer substrate and can be 180° rotationally symmetric about its center. A height of the opening cavity can be quarter-wavelength at operating frequency and a diameter of the opening cavity can be larger than one wavelength at operating frequency.

Abstract: A single-ended signal can be converted to a differential signal or reverse. A printed circuit board component can comprise a bottom metal layer and a top metal layer, wherein the bottom metal layer is connected to the top metal layer by an array of metal posts, and wherein the array of metal posts is arranged to form a substrate integrated waveguide network configured to transmit a set of electromagnetic waves corresponding to a single-ended signal represented according to a bandwidth. Furthermore, in an aspect, the device can comprise a coaxial to waveguide adaptor component comprising a coaxial cable port portion and a waveguide port portion, wherein the waveguide port portion guides the set of electromagnetic waves to the substrate integrated waveguide network.

Abstract: A planar differential aperture antenna that has a high gain and wide bandwidth at a millimeter wave band is provided. The differential aperture antenna has a cavity within it that has a height of roughly a quarter of a wavelength of the desired transmission band. The cavity is H-shaped, and has a cross shaped patch within the cavity that is fed differentially by two grounded coplanar waveguides. Two ends of the patch extend towards the ports on either side of the differential aperture antenna, and the other two ends of the patch extend into the cavity lobes, perpendicular with respect to the ports.

Abstract: A single-ended signal can be converted to a differential signal or reverse. A printed circuit board component can comprise a bottom metal layer and a top metal layer, wherein the bottom metal layer is connected to the top metal layer by an array of metal posts, and wherein the array of metal posts is arranged to form a substrate integrated waveguide network configured to transmit a set of electromagnetic waves corresponding to a single-ended signal represented according to a bandwidth. Furthermore, in an aspect, the device can comprise a coaxial to waveguide adaptor component comprising a coaxial cable port portion and a waveguide port portion, wherein the waveguide port portion guides the set of electromagnetic waves to the substrate integrated waveguide network.

Abstract: A planar differential aperture antenna that has a high gain and wide bandwidth at a millimeter wave band is provided. The differential aperture antenna has a cavity within it that has a height of roughly a quarter of a wavelength of the desired transmission band. The cavity is H-shaped, and has a cross shaped patch within the cavity that is fed differentially by two grounded coplanar waveguides. Two ends of the patch extend towards the ports on either side of the differential aperture antenna, and the other two ends of the patch extend into the cavity lobes, perpendicular with respect to the ports.

Abstract: A planar differential aperture antenna that has a high gain and wide bandwidth at a millimeter wave band is provided. The differential aperture antenna has a cavity within it that has a height of roughly a quarter of a wavelength of the desired transmission band. The cavity is H-shaped, and has a cross shaped patch within the cavity that is fed differentially by two grounded coplanar waveguides. Two ends of the patch extend towards the ports on either side of the differential aperture antenna, and the other two ends of the patch extend into the cavity lobes, perpendicular with respect to the ports.

Abstract: A circularly polarized antenna exhibiting a high performance characteristic can be produced by utilizing a ground plane, a half-loop, and an electric dipole in a predetermined configuration. The circularly polarized antenna can provide benefits, such as wide axial ratio bandwidth, high gain, and simple structure, over other unidirectional circularly polarized antennas.

Abstract: An omni circularly-polarized antenna comprises: upper and lower layers of metal strips placed horizontally and having identical spoke-like shapes, each of the layers of said metal strips composed of a center and a plurality of spokes connected to the center, the plurality of spokes, at a circumferential position of the spoke-like shape, having extensions extending towards an identical direction along the circumference, wherein extending directions of the extensions of the spokes in the upper and lower layers of metal strips are opposite; metal poles with a number being identical with a number of the spokes in the metal strips, the metal poles vertically interconnecting ends of the extensions of the spokes in the upper and lower layers of metal strips; a coaxial connector comprising an elongated inner conductor and an outer conductor, wherein the elongated inner conductor is connected to the center of the upper layer of metal strip, and the outer conductor is connected to the center of the lower layer of metal

Abstract: A circularly polarized antenna exhibiting a high performance characteristic can be produced by utilizing a ground plane, a half-loop, and an electric dipole in a predetermined configuration. The circularly polarized antenna can provide benefits, such as wide axial ratio bandwidth, high gain, and simple structure, over other unidirectional circularly polarized antennas.