Techniques are provided for constructing a wide-beam antenna, for example a dipole antenna printed over an arbitrary ground plane. An example antenna includes at least one wide-beam dipole antenna cell, comprising a substrate, one or more signal lines disposed in the substrate, a conductive cladding disposed on the substrate, a dielectric layer disposed on the conductive cladding, a first sidewall via through the dielectric layer and electrically coupled to the conductive cladding, a second sidewall via extending through the dielectric layer and electrically coupled to the conductive cladding, a dipole antenna element disposed on the dielectric layer between the first sidewall via and the second sidewall via, a first director element disposed on the dielectric layer and extending toward the dipole antenna element, and a second director element disposed on the dielectric layer and extending toward the dipole antenna element.

A linear antenna array comprises a hollow support mast having a longitudinal axis, and a plurality of antenna element bays located equidistantly along the support mast. Each of the antenna element bays comprises a stripline driving circuit board positioned orthogonal to the longitudinal axis of the support mast, and a set of radiating elements symmetrically positioned around the support mast and electrically connected to the driving circuit board. A suspended-line circuit extends through the support mast and is electrically connected to the driving circuit board in each of the antenna element bays to provide a driving feed signal to each of the radiating elements.

An antenna assembly includes a plurality of active antenna elements disposed in a first linear array along a reference line and equidistant from each adjacent antenna element by a first linear distance, and a plurality of passive antenna elements disposed in a second linear array extending parallel to the reference line such that each passive antenna element is a second linear distance away from a corresponding one of the active antenna elements. The antenna assembly includes or is operably coupled to a phase control module configured to apply selected phase fronts to selected ones of the antenna elements to generate constructive and destructive interference patterns to define a directive beam in a desired direction in a range between about 0 and 180 degrees relative to the reference line.

This document describes a twin line fed dipole array antenna that may be coupled to several different types of feed networks in a space-efficient manner. The antenna makes use of a twin line feed to a plurality of dipoles that minimizes cross-polarization. The antenna may be manufactured on a printed circuit board (PCB) and has a centered feed slot that is easily coupled to several different types of waveguides or a microstrip. In some implementations, the dipole elements may have an approximately rectangular shape. In other implementations, the dipole elements may have an approximately bowtie shape, round shape, oval shape, C-shape, or L-shape. The size and placement of the dipole elements may be optimized for certain operating frequencies of the radar system to which the antenna is coupled.

An antenna array includes one or more substrates and four individual antennas in a slant formation to improve radiation pattern independence. In various embodiments, a novel slanted antenna array configuration is disclosed where one of the four antennas is orthogonal to two of the remaining three antennas. In some embodiments, two separate substrates and a tapered dielectric spacer are used to provide a larger variety of slant formations.

An antenna array includes one or more substrates and four individual antennas in a slant formation to improve radiation pattern independence. In various embodiments, a novel slanted antenna array configuration is disclosed where one of the four antennas is orthogonal to two of the remaining three antennas. In some embodiments, two separate substrates and a tapered dielectric spacer are used to provide a larger variety of slant formations.

An antenna device that includes a first antenna configured to perform communication using a predetermined frequency band, and a second antenna configured to perform communication using the predetermined frequency band, and the first antenna and the second antenna are arranged such that amplitude directions of radio waves which are output from the first antenna and the second antenna coincide with each other.

In some aspects, an apparatus includes a transformer including a first inductor, a second inductor, and a third inductor. The apparatus also includes a power amplifier coupled to the first inductor, a first antenna coupled to a first terminal of the second inductor, a second antenna coupled to a second terminal of the second inductor, a first switch coupled between the first terminal of the second inductor and a ground, a second switch coupled between the second terminal of the second inductor and the ground, and a low-noise amplifier coupled to the third inductor.

In some aspects, an apparatus includes a transformer including a first inductor, a second inductor, and a third inductor. The apparatus also includes a power amplifier coupled to the first inductor, a first antenna coupled to a first terminal of the second inductor, a second antenna coupled to a second terminal of the second inductor, a first switch coupled between the first terminal of the second inductor and a ground, a second switch coupled between the second terminal of the second inductor and the ground, and a low-noise amplifier coupled to the third inductor.

Disclosed is an antenna device. The antenna device includes a first conductor pattern including a plurality of first antenna components, the first conductor pattern formed on a first substrate, a second conductor pattern including a plurality of second antenna components, the second conductor pattern formed on a second substrate, and a plurality of conductor lines connecting each of the first antenna components of the first conductor pattern and each of the second antenna components of the second conductor pattern, wherein the first conductor pattern and the second conductor pattern may be spaced apart from each other.