H01Q3/2647 - CPC Classification Index

ClassID:

214249 ⎘

H01Q3/2647 - CPC Classification

Classification description:

Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture; Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays Retrodirective arrays

Recent Application in this class:

20260045687

2026-02-12

RETROREFLECTIVE ANTENNA, AND OBJECT DETECTING SYSTEM

20250062528

2025-02-20

COMMUNICATION DEVICE COMPRISING A RETROREFLECTIVE STRUCTURE

20240421477

2024-12-19

ELECTROMAGNETIC ABSORBER APPLICATION TO RADAR RETROREFLECTIVE DEVICES

20240275040

2024-08-15

MULTIPLE RETRODIRECTIVE SURFACE MOUNT ANTENNA ASSEMBLY

20230097704

2023-03-30

Communication device comprising a retroreflective structure

20220404485

2022-12-22

SYSTEM FOR SENSING BACKSCATTER TAG COMMUNICATIONS FROM RETRODIRECTIVE ANTENNA ARRAYS

20220311138

2022-09-29

Antenna apparatus, antenna system and method of operation

20210165092

2021-06-03

System for sensing backscatter tag communications from retrodirective antenna arrays

20200358180

2020-11-12

Beacon network, moving-object positioning system, and logistics management system

#10

20200335867

2020-10-22

Dual-polarized retrodirective array and multi-frequency antenna element

#11

20200194887

2020-06-18

Van Atta antenna array with patch elements and substrate integrated waveguide

#12

20200076077

2020-03-05

Open cavity system for directed amplification of radio frequency signals

#13

20190363438

2019-11-28

Retrodirective wireless device and method

#14

20190157756

2019-05-23

Methods and systems for distortion redirection in phased arrays

#15

20190123797

2019-04-25

Object detection for beamforming configuration and coverage optimization

#16

20180159244

2018-06-07

Retro-directive quasi-optical system

#17

20180040952

2018-02-08

Modal adaptive antenna using reference signal LTE protocol

#18

20170359115

2017-12-14

SMART GROUND-TERMINAL ANTENNA FOR GEOSTATIONARY SATELLITES IN SLIGHTLY INCLINED ORBITS

#19

20170133758

2017-05-11

Modal adaptive antenna using reference signal LTE protocol

#20

20160020841

2016-01-21

Digital retro-directive communication system and method thereof

#21

20150301168

2015-10-22

Omnidirectional retrodirective antennas

#22

20150295328

2015-10-15

Rotatable transponder system

#23

20150244441

2015-08-27

Tracking system with orthogonal polarizations and a retro-directive array

#24

20150155927

2015-06-04

Digital retro-directive communication system and method thereof

#25

20140348035

2014-11-27

Half-duplex phased array antenna system

#26

20140334580

2014-11-13

Smart ground-terminal antenna for geostationary satellites in slightly inclined orbits

#27

20140266894

2014-09-18

Automatic high-resolution adaptive beam-steering

#28

20140210683

2014-07-31

Calibrating a retro-directive array for an asymmetric wireless link

#29

20140134963

2014-05-15

Tracking system with orthogonal polarizations and a retro-directive array

#30

20140127989

2014-05-08

Repeaters for wireless communication systems

#31

20140062788

2014-03-06

Phase-conjugate configuration of high-gain, dual-polarized sector antennas for a repeater

#32

20130222184

2013-08-29

Receive only smart ground-terminal antenna for geostationary satellites in slightly inclined orbits

#33

20130002472

2013-01-03

Active retrodirective antenna array with a virtual beacon

#34

20120212371

2012-08-23

Receive only smart ground-terminal antenna for geostationary satellites in slightly inclined orbits

#35

20120146879

2012-06-14

System of multi-beam antennas

#36

20120146867

2012-06-14

Compact System of Multi-Beam Antennas

#37

20120106659

2012-05-03

Digital retro-directive communication system and method thereof

#38

20120086602

2012-04-12

HYBRID BEAM FORMING APPARATUS IN WIDEBAND WIRELESS COMMUNICATION SYSTEM

#39

20120013507

2012-01-19

Retrodirective antenna systems

#40

20110312269

2011-12-22

Repeaters for wireless communication systems

#41

20110195670

2011-08-11

Method and system for uplink beamforming calibration in a multi-antenna wireless communication system

#42

20110084879

2011-04-14

Retrodirective transmit and receive radio frequency system based on pseudorandom modulated waveforms

#43

20100265853

2010-10-21

Beamforming method using multiple antennas

#44

20100260076

2010-10-14

Half-duplex phased array antenna system

#45

20100259447

2010-10-14

Wireless power transmission system and method

#46

20100225523

2010-09-09

Radar apparatus configured to suppress effects of grating lobes upon detection of direction of target based on phase difference between received reflected waves

#47