A device comprising: a substrate; a semiconductor die mounted on the substrate; a transmit antenna fabricated on the substrate and configured to transmit radio-frequency (RF) signals at least at a first center frequency; a receive antenna fabricated on the substrate and configured to receive RF signals at least at a second center frequency different than the first center frequency; and circuitry integrated with the semiconductor die and configured to provide RF signals to the transmit antenna and to receive RF signals from the receive antenna.

An array apparatus includes: an electrically conductive ground layer; a plurality of spaced apart dielectric resonators operable at a defined radiation wavelength, the plurality of resonators being spaced apart on an x, y grid having respective x and y dimensions between closest adjacent resonators that are each less than the defined radiation wavelength, each resonator being disposed on and in electrical communication with the ground layer; and, a plurality of spaced apart signal feeds disposed in one-to-one relationship with respective ones of the plurality of resonators. Each signal feed provides a respective electrical signal path through respective ones of the plurality of resonators that defines an orientation of a resulting magnetic dipole vector associated with the corresponding ones of the plurality of resonators; and each pair of closest adjacent ones of the resulting magnetic dipole vectors are oriented parallel with each other but not in linear alignment with each other.

A method for the manufacture of a DRA, or an array of the DRA's, each DRA including: a substrate; and, a plurality of volumes of dielectric materials disposed on the substrate comprising N volumes, N being an integer equal to or greater than 3, disposed to form successive and sequential layered volumes V(i), i being an integer from 1 to N, wherein volume V(1) forms an innermost volume, wherein a successive volume V(i+1) forms a layered volume disposed over and at least partially embedding volume V(i), wherein volume V(N) at least partially embeds all volumes V(1) to V(N1), the method including: forming on the substrate a first volume of the plurality of volumes of dielectric materials from a first dielectric material having a first dielectric constant; and, forming over the first volume a second volume of the plurality of volumes of dielectric materials with a second dielectric material having a second dielectric constant.

A method for the manufacture of a dielectric resonator antenna (DRA) or array of DRAs, the DRA having: an electrically conductive ground structure; a plurality of volumes of dielectric materials disposed on the ground structure having N volumes, N being an integer equal to or greater than 3, disposed to form successive and sequential layered volumes V(i), i being an integer from 1 to N, wherein volume V(1) forms an innermost volume, wherein a successive volume V(i+1) forms a layered shell disposed over and at least partially embedding volume V(i), wherein volume V(N) at least partially embeds all volumes V(1) to V(N1); and, a signal feed disposed and structured to be electromagnetically coupled to one or more of the plurality of volumes of dielectric materials. The method including molding at least one of the plurality of volumes of the dielectric material, or all of the volumes of the dielectric material.

A dielectric resonator antenna, DRA, includes: a ground structure; a plurality of volumes of dielectric materials disposed on the ground structure having N volumes V.sub.1 to V.sub.N, N being an integer equal to or greater than 3; a signal feed disposed and structured to be electromagnetically coupled to one or more of the plurality of volumes of dielectric materials; wherein adjacent ones of the plurality of volumes of dielectric materials have different dielectric constants with respect to each other; wherein each volume V.sub.2 to V.sub.N1 includes a dielectric material other than air; and, wherein at least volume V.sub.1 has a cross sectional shape as observed in an elevation view with an overall height that is greater than half its respective overall width.

A dielectric resonator antenna, DRA, includes: an electrically conductive ground structure; a plurality of volumes of dielectric materials disposed on the ground structure comprising N volumes, N being an integer equal to or greater than 3, disposed to form sequential layered volumes V.sub.i, i being an integer from 1 to N, wherein volume V.sub.1 forms an innermost first volume, wherein a successive volume V.sub.i+1 forms a layered shell disposed over and at least partially embedding volume V.sub.i, wherein volume V.sub.N at least partially embeds all volumes V.sub.1 to V.sub.N1; wherein a portion of the dielectric material of volume V.sub.N bifurcates at least a portion of volumes V.sub.1 to V.sub.N1; wherein the plurality of volumes of dielectric materials has a first effective dielectric constant along a first geometrical path, and has a second effective dielectric constant along a second geometrical path that is lower than the first effective dielectric constant.

A dielectric resonator antenna (DRA), having: an electrically conductive ground structure; a plurality of volumes of dielectric materials disposed on the ground structure having N volumes, N being an integer equal to or greater than 3, disposed to form successive and sequential layered volumes V(i), i being an integer from 1 to N, wherein volume V(1) forms an innermost first volume, wherein a successive volume V(i+1) forms a layered shell disposed over and at least partially embedding volume V(i), wherein volume V(N) at least partially embeds all volumes V(1) to V(N1); a signal feed electromagnetically coupled to one or more of the plurality of volumes of dielectric materials; and, the plurality of volumes of dielectric materials defining therein a first geometrical path having a first direction that extends from the signal feed to a diametrically opposing side of the plurality of volumes of dielectric materials, and defining therein a second geometrical path having a second direction that is orthogonal to the first direction of the first geometrical path, the second geometrical path having an effective dielectric constant that is less than an effective dielectric constant of the first geometrical path.

In one aspect, a unit cell of a phased array antenna includes a metal plate having a hole, a first side and a second side opposite the first side, a first plurality of laminate layers disposed on the first side, a second plurality of layers disposed on the second side of the metal plate, a radiator disposed in the first plurality of layer on the first side, a feed circuit disposed in the second plurality of laminate layers on the second side and configured to provide excitation signals to the radiator and a first plurality of vias extending through the hole connecting the feed circuit to the radiator.

A system comprising synchronization circuitry, a first interrogator, and a second interrogator. The first interrogator includes a transmit antenna; a first receive antenna, and circuitry configured to generate, using radio-frequency (RF) signal synthesis information received from the synchronization circuitry, a first RF signal for transmission by the transmit antenna, and generate, using the first RF signal and a second RF signal received from a target device by the first receive antenna, a first mixed RF signal indicative of a distance between the first interrogator and the target device. The second interrogator includes a second receive antenna, and circuitry configured to generate, using the RF signal synthesis information, a third RF signal; and generate, using the third RF signal and a fourth RF signal received from the target device by the second receive antenna, a second mixed RF signal indicative of a distance between the second interrogator and the target device.

Systems and methods which provide filtering dielectric resonator antenna (FDRA) configurations implementing radiation cancellation are disclosed. Embodiments of a FDRA provide implementations of dielectric resonator antennas (DRAs) which are configured with a loop feed structure facilitates radiation cancellation to provide radiation nulls at frequencies outside of a desired passband to thereby implement radiation cancellation for filtering functionality of the FDRA. FDRAs of embodiments may be variously polarized, such as to provide linear polarization or circular polarization.