John Mezzalingua Associates, Inc.

Quintel Technology Limited

Quintel Cayman Limited

Lance Darren Bamford

Evan Christopher Wayton

Niranjan Sundararajan

Taehee Jang

Cody J Anderson

Kevin T Le

Jordan Ragos

David Edwin Barker

Charles J Buondelmonte

Peter Chun Teck Song

David Sam Piazza

Alex Waldauer

Jeremy Charles Benn

A transparent broadband antenna has two conductive leaves that are configured to be axially symmetric about two orthogonal axes. The transparent broadband antenna is designed as having two back-to-back Vivaldi radiators and four identically curved outer corners. The back-to-back Vivaldi radiators provide high performance from 617 MHz through 7 GHz while preventing return waves that may cause impedance mismatch. The antenna further comprises a feed structure that enables direct coupling from an RF cable to the two conductive leads, obviating the need for a matching circuit and subsequent bandwidth limitations.

Transparent broadband antenna

Disclosed is an antenna having a toroidal gradient index lens, whereby a radiator may be disposed within the inner hole of the toroid. The antenna may include a mechanism that translates the radiator along the z-axis whereby an 'upward' translation of the radiator along the z-axis tilts the antenna's elevation beam pattern downward. The radiator disposed within the hole of the toroid lens may be a dipole or a multi-sector radiator, such as a tri-sector radiator. Disclosed are two variations of the toroidal lens: a toroid shape, and a cylindrical toroidal shape.

Toroidal gradient index lens for omni and sector antennas

Disclosed is an antenna having a plurality of radiators disposed in a ring or arc around a Luneburg lens. Each of the radiators (e.g., flared-notch radiators) has a center radiating axis that intersects with the center of the Luneburg lens. Each of the radiators radiate into the Luneburg lens such that the Luneburg lens substantially planarizes the beam emitted by each radiator (on transmit) and focuses an incoming wavefront into the radiator (on receiver). This not only enables having numerous well-controlled individual beams, it also allows for combining radiators to create well-defined sector beams with minimal sidelobes and fast rolloff.

Spherical Luneburg lens-enhanced compact multi-beam antenna

A telecommunications antenna comprising a plurality of unit cells each including at least one radiator which transmits RF energy within a bandwidth range which is a multiple of another radiator. The radiators are proximal to each other such that a resonant condition may be induced into the at least one radiator upon activation of the other radiator. At least one of the radiators is segmented into capacitively-connected radiator elements to suppress a resonance response therein upon activation of the other of the radiator.

Low profile telecommunications antenna

Cloaking arrangement for low profile telecommunications antenna

Disclosed is a telecommunications antenna having a plurality of cloaked low band (LB) and high band (HB) dipoles. The LB and HB dipoles provide cloaking by breaking the dipoles into dipole segments, and providing conductive cloaking elements over the gaps between dipole segments to form a plurality of capacitors along the dipole. The capacitors along the LB dipoles provide a low impedance to LB RF signals and a high impedance to HB signals. The capacitors formed on the HB dipoles provide a low impedance to RF signals and high impedance to harmonics of the LB RF signals. This cross-cloaking of dipoles enables more dense arrangements of LB and HB dipoles on an antenna array face, providing opportunities to arrange, for example, the LB dipoles with an array factor that results in an advantageous fast roll off gain pattern.

Multi-band fast roll off antenna having multilayer PCB-formed cloaked dipoles

Multi-band fast roll off antenna having multi-layer PCB-formed cloaked dipoles

A unit cell for an antenna comprises a conductive ground plane, a low-band radiator, a pair of high-band radiators, and a conductive partition disposed along an edge intersecting a pitch axis of the conductive ground plane. The low-band radiator comprises a pair of orthogonally coupled dipoles each having a vertical stem portion and an arm portion. Each arm disposed in a plane orthogonal to the conductive ground plane. The arm portions, collectively and on-edge, produce an L-shaped radiator parallel to the conductive ground plane. Each of the high band radiators comprises a pair of cruciform radiators, each cruciform electrically connected to, spaced-apart from, and parallel to the conductive ground plane. The conductive partition isolates at least a portion of the RF energy transmitted by the low and high-band radiators.

Modular unit cell construction for a high performance, low profile (HPLP) telecommunications antenna

In one example, the present disclosure provides a dual-polarized antenna array that includes at least one unit cell. The at least one unit cell includes at least one radiating element of a first polarization state and at least two radiating elements of a second polarization state. The second polarization state is orthogonal to the first polarization state. The at least two radiating elements of the second polarization state are displaced on a first side and a second side of the at least one radiating element of the first polarization state.

Antenna system with beamwidth control

In one example, the present disclosure describes an antenna system with at least two linear antenna arrays, each having a plurality of antenna elements. Each array is designed to transmit and receive signals from different respective spectrum bands. The first antenna array and second antenna array are arranged to form one longer, combined linear array of antenna elements. In addition, at least one antenna element is shared between the first and second antenna arrays. In one example, the first antenna array is connected to a first RF distribution and phase-shifting network to distribute RF power and impart a phase profile across the first antenna array and the second antenna array is connected to a second RF distribution and phase-shifting network to distribute RF power and impart a phase profile across the second antenna array.

Growing community of inventors

Pittsford, NY, United States of America

Lance Darren Bamford