Apple Inc.

Arris Enterprises LLC

Waymo LLC

Google Inc.

Douglas Blake Kough

Bing Chiang

Gregory Allen Springer

Enrique Ayala Vazquez

Hao Xu

Eduardo Lopez Camacho

Enrique Ayala

Matthew Ian McDonald

Brett W Degner

Robert W Schlub

Ruben Caballero

Chris A Ligtenberg

Rajesh Koganti

Mattia Pascolini

Jerzy S Guterman

Khaled Ahmad Obeidat

Anand Krishnamachari

Bartley K Andre

Yi Jiang

Felix Jose Alvarez Rivera

Rodney Andres Gomez Angulo

Vijay L Asrani

Peter H Liu

John Gregory Dorsey

Joe Freeman Britt, Jr

James W Jervis

Paul Andrew Gojenola

Ivaylo Tankov

Robert Walter Schlub

Matthew Ian Mcdonald

An electronic device is described. This electronic device includes: an interface circuit; and an antenna having a radiator and multiple pairs of reflectors arranged along different axes passing through the radiator in a horizontal plane. A given pair of reflectors includes reflectors on opposite sides of the radiator and along a given axis. During operation, the interface circuit provides control signals to switching elements that selectively electrically couple one or more of the reflectors in the pairs of reflectors to ground, where the one or more of the reflectors modify an antenna radiation pattern of the radiator. Then, the interface circuit communicates, via the antenna, a packet or a frame with a second electronic device, where the communication involves transmitting or receiving wireless signals corresponding to the packet or the frame.

Reconfigurable antenna with a strands antenna radiation pattern

Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.

Wireless radio units that include antenna systems having coaxial feed cables that are selectively connected to an RF ground plane

An electronic device includes: a first pair of antennas having a first polarization along a first direction in a plane, where the first pair of antennas are spatially offset from each other along a second direction in the plane; and a second pair of antennas having a second polarization along the second direction, where the second pair of antennas are spatially offset from each other along the first direction. During operation, the electronic device may configure switching elements to: select the first pair of antennas and electrically couple the second pair of antennas to ground; or select the second pair of antennas and electrically couple the first pair of antennas to ground. Then, the electronic device may communicate a packet or a frame with a second electronic device via the selected first pair of antennas or the second pair of antennas.

Hybrid antenna with polarization flexibility

An electronic device that communicates a packet or a frame is described. This electronic device includes: at least an antenna having an antenna radiation pattern; an interface circuit; and an antenna cover that includes an integrated static lens, where the antenna cover is selected from a set of antenna covers that includes different integrated static lenses. During operation, the interface circuit may transmit, from the antenna, wireless signals corresponding to the packet or the frame, where the integrated static lens modifies the antenna radiation pattern of the antenna. For example, the integrated static lens may cause the wireless signals to converge or diverge. Alternatively, the integrated static lens may change an angular elevation of the antenna radiation pattern and/or may provide a correction for pathloss as a function of angle. Note that the integrated static lens may be a stepwise approximation to a predefined function.

Antenna cover with integrated static lens

An electronic device that uses an arbitrary transmit polarization is described. This electronic device includes: a first antenna having a first predefined polarization; and a second antenna having a second predefined polarization, where the second predefined polarization is different from the first predefined polarization. During operation, an interface circuit in the electronic device selectively transmits, from the first antenna, first wireless signals corresponding to the packet or the frame. Moreover, the interface circuit selectively transmits, from the second antenna, second wireless signals corresponding to the packet or the frame, where the second wireless signals have a same magnitude as the first wireless signals, and the second wireless signals are transmitted from the second antenna concurrently (or at the same time) as the first wireless signals are transmitted from the first antenna. Note that the interface circuit may dynamically modify the transmit polarization during the communication.

Communication using arbitrary selectable polarization

An access point includes a data encoder, a first transmit/receive chain coupled to the data encoder, the first transmit/receive chain including a first radio and a first antenna that are configured to transmit RF signals in a first frequency band, a second transmit/receive chain coupled to the data encoder, the second transmit/receive chain including a second radio and a second antenna that are configured to transmit RF signals in the first frequency band, and a switchable ground element that comprises a conductive member that is connected to a ground reference via a switch. The first antenna is separated from the second antenna by a distance that is less than one wavelength of a center frequency of the first operational frequency band.

Multi-input-multi-output access points having switchable ground elements for improved isolation and related methods

The present disclosure is related to an antenna system for a vehicle, such as a vehicle that has a non-metallic roof. The antenna system includes two metallic supports coupled to the roof. Additionally, the antenna system includes a first MIMO antenna pair. A first antenna of the first MIMO antenna pair is coupled to a first support of the two metallic supports, and a second antenna of the first MIMO antenna pair is coupled to a second support of the two metallic supports. The antenna system further includes a second MIMO antenna pair. A first antenna of the second MIMO antenna pair is coupled to the first support of the two metallic supports, and a second antenna of the second MIMO antenna pair is coupled to the second support of the two metallic supports. Yet further, the two metallic supports of the antenna system are physically separated from each other.

LTE MIMO antenna system for automotive carbon fiber rooftops

Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antenna resonating elements such as dual-band antenna resonating elements that resonate in first and second communications bands. The antenna structures may also contain parasitic antenna elements such as elements that are operative in only the first or second communications band and elements that are operative in both the first and second communications bands. The antenna resonating elements and parasitic elements may be mounted on a common dielectric carrier. The dielectric carrier may be mounted within a slot or other opening in a conductive element. The conductive element may be formed from conductive housing structures in an electronic device such as a portable computer. The portable computer may have a clutch barrel with a dielectric cover. The dielectric cover may overlap and cover the slot and the dielectric carrier.

Antenna structures having resonating elements and parasitic elements within slots in conductive elements

Antennas are provided for electronic devices such as portable computers. An electronic device may have a housing in which an antenna is mounted. The housing may have an antenna window for the antenna. The antenna window may be formed from dielectric or from antenna window slots in a conductive member such as a conductive wall of the electronic device housing. An antenna may have an antenna resonating element that is backed by a conductive antenna cavity. The antenna resonating element may have antenna resonating element slots or may be formed using other antenna configurations such as inverted-F configurations. The antenna cavity may have conductive vertical sidewalls and a conductive rear wall. The antenna cavity walls may be formed from conductive layers on a dielectric antenna support structure.

Cavity antennas for electronic devices

An antenna may be formed from conductive regions that define a gap that is bridged by shunt inductors. The inductors may have equal inductances and may be located equidistant from each other to form a scatter-type antenna structure. The inductors may also have unequal inductances and may be located along the length of the gap with unequal inductor-to-inductor spacings, thereby creating a decreasing shunt inductance at increasing distances from a feed for the antenna. This type of antenna structure functions as a horn-type antenna. One or more scatter-type antenna structures may be cascaded to form a multiband antenna. Antenna gaps may be formed in conductive device housings.

Antennas with periodic shunt inductors

Dual slot antennas are provided for portable electronic devices such as handheld electronic devices. A dual slot antenna may have an open slot that has an open end that is not encircled by conductive material and may have a closed slot in which each end is surrounded by conductor. The closed and open slots may have portions that run parallel to each other. The antenna may be fed using feed terminals that bridge the closed and open slots in the vicinity of the portions of the slots that run parallel to each other. The slots may have portions that are angled with respect to each other. An end portion of one of the slots may be bent and widened for impedance matching and broadened bandwidth. Other portions of the slots may also be angled with respect to their main longitudinal axes.

Dual-band antenna with angled slot for portable electronic devices

Antennas for electronic devices such as portable computers are provided. An antenna may have a dipole structure in which one antenna element serves as a matching element and another antenna element serves as a radiating element. The antenna elements may be mounted on a substrate. The substrate may be mounted on a support structure that is attached to a grounding plate. The grounding plate may be grounded to a conductive housing portion of a portable computer. The antenna may be mounted within the conductive housing in the vicinity of an opening in the housing. The opening may be a slot opening that is used to accommodate optical disks or other storage media. Radio-frequency signals for the antenna may pass through the opening.

Growing community of inventors

San Jose, CA, United States of America

Douglas Blake Kough