An antenna device is presented. The antenna device comprises: a conformal antenna body which has a desired geometry corresponding to a front portion of a platform on which the antenna device is to be mounted, and an antenna unit carried by the antenna body. The antenna unit comprises at least one phased array of antenna elements. The antenna elements of each array are arranged in a spaced-apart relationship in a closed loop path along a circumference of the antenna body having a desired geometry corresponding to a front portion of platform on which the antenna unit is to be mounted. Each of the antenna elements is configured as an end-fire antenna element capable of emitting linearly polarized radiation, the array of the antenna elements being thereby operable as a forward looking end-fire antenna array, enabling electronic steering of an antenna beam by controllably modifying phases of the antenna elements of each array.

In accordance with one or more embodiments, a transceiver is configured to generate a first signal in response to receiving a first guided electromagnetic wave from a remote system via a launcher. A controller is configured to generate a channel quality indicator in response to the first signal. The transceiver is further configured to generate a second signal that conveys the channel quality indicator. The launcher, responsive to the second signal, is further configured to launch a second guided electromagnetic wave that conveys the channel quality indicator to the remote system, wherein the second guided electromagnetic wave is guided by the transmission medium and propagates along the transmission medium.

In accordance with one or more embodiments, an antenna system includes a dielectric antenna having a feedpoint and an aperture. A fractal patch antenna is configured to receive a signal via a feedline and to generate an electromagnetic wave in response to the signal. A waveguide is configured to couple the electromagnetic wave to the feedpoint, wherein the dielectric antenna is configured to radiate a free space wireless signal from the aperture in response to the electromagnetic wave.

An antenna assembly for a radio frequency identification (RFID) reader includes: a support member having an inner surface and an opposing outer surface; a first bifilar helical antenna element wound about a first helical axis extending from the outer surface of the support member, wherein the first helical axis is exclusive to the first helical antenna element; a first control terminal on the support member, electrically connected with the first bifilar helical antenna element; a second bifilar helical antenna element wound about a second helical axis extending from the outer surface of the support member, wherein the second helical axis is exclusive to the second helical antenna element; and a second control terminal on the support member, electrically connected with the second bifilar helical antenna element.

An apparatus includes a plurality of transmitter channels and a plurality of feedback networks. Each of the plurality of transmitter channels may be coupled to a respective antenna element in a respective group of antenna elements of a phased array antenna. Each of the transmitter channels generally comprises a power amplifier circuit configured to drive the respective antenna element in the respective group of antenna elements to produce and steer a radio-frequency beam. Each of the plurality of feedback networks may be coupled between an output and an input of a respective power amplifier circuit of a respective transmitter channel. Each of the feedback networks generally comprises a resistor and a capacitor connected in series. The respective power amplifier circuit with the feedback network generally maintains a power matching condition with load variation associated with performing beam steering of the radio-frequency beam using the antenna elements of the phased array antenna.

A wearable electromagnetic, EM, apparatus includes: at least one antenna operable in a millimeter-wave-radar-based, MWRB, application; at least one computer processor disposed in signal communication with the at least one antenna; an attachment system configured and adapted to attach to an actor; the at least one antenna and the at least one computer processor disposed in a supported relationship with the attachment system, such that the attachment system with the supported at least one antenna and the at least one computer processor at least partially forms a wearable apparatus that is wearable by the actor.

An apparatus includes a phased array antenna panel and one or more beam former circuits. The phased array antenna panel generally comprises a plurality of antenna elements. The plurality of antenna elements are generally arranged in one or more groups. The one or more beam former circuits may be mounted on the phased array antenna panel. Each beam former circuit is generally coupled to a respective group of the antenna elements. Each beam former circuit generally comprises a plurality of transceiver channels comprising a transmit channel and a receive channel. The phased array antenna panel is generally configured to distribute a control signal to each of the beam former circuits. Each of the transceiver channels is generally configured to switch between a transmit mode and a receive mode in response to the control signal.

Aspects of the subject disclosure may include, a communication device with a group of radio devices connected with a support structure, where the support structure is positioned in and passes through housing openings in each radio device to provide a stacked arrangement. One or more radio device is rotatable with respect to the support structure to enable adjusting a first orientation of a directional antenna therein. Other embodiments are disclosed.

An ultra-wide band (UWB) radio frequency (RF)/optical aperture includes a substrate having a plurality of regions. The plurality of regions may have varying characteristics and properties. In some embodiments, the plurality of regions includes a first region having a first relative dielectric constant and being transparent to signals having a frequency in a first frequency range, a second region contained in the first region and having a second relative dielectric constant and being transparent to signals having a frequency in a second frequency range, and a third region contained within the second region and having a third relative dielectric constant and being transparent to signals having a frequency in a third frequency range.

A wireless communication antenna system includes: a radio-frequency circuit configured to couple to a printed circuit board; a broadside radiator configured and disposed to radiate first millimeter-wave energy at a first boresight away from a broadside surface of the printed circuit board; an end-fire radiator configured and disposed to radiate second millimeter-wave energy at a second boresight away from a side surface of the printed circuit board; and at least one flex cable each including a substrate, the at least one flex cable including a plurality of signal conductors coupled to the radio-frequency circuit; where at least one of the broadside radiator or the end-fire radiator is a cavity radiator; and where respective signal conductors of the plurality of signal conductors are disposed to excite the broadside radiator and the end-fire radiator.