ClassID:

214491

H01Q19/30 - CPC Classification

Classification description:

Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna

Recent Application in this class:
#1
20260149167
2026-05-28

Integrated Antenna Radiating Configuration with Magnetic Lid Latching Mechanism

#2
20260128515
2026-05-07

COMMUNICATIONS DEVICE WITH CONDUCTIVE SINUSOIDAL LENS ELEMENT AND RELATED ANTENNAS AND METHODS

#3
20260091895
2026-04-02

WIRELESS POWER AND BI-DIRECTIONAL COMMUNICATION HUB AND DEVICES THEREFORE

#4
20250168265
2025-05-22

DISPLAY DEVICE INCLUDING ANTENNAE AND ANTENNA CIRCUIT BOARD

#5
20250096485
2025-03-20

Wideband Directional Antenna System With Minimized Volumetric Signature

#6
20240186707
2024-06-06

Antenna and electronic apparatus

#7
20240178574
2024-05-30

Portable antenna system for improving radio coverage

#8
20240178547
2024-05-30

High-bandwidth antenna in package apparatus

#9
20240022003
2024-01-18

MULTI-PORT MULTI-FUNCTIONAL META-SURFACE COPLANAR ANTENNA SYSTEM FOR BEAM STEERING CONTROL

#10
20230261361
2023-08-17

Package structure

#11
20230123914
2023-04-20

ELECTRONIC DEVICE FOR PERFORMING BEAM SWITCHING AND/OR BEAMFORMING AND OPERATING METHOD THEREOF

#12
20230060522
2023-03-02

Wireless communication apparatus, wireless communication system, and communication method

#13
20230012446
2023-01-12

Indoor positioning system and method, and communication-navigation integrated system

#14
20230006359
2023-01-05

Filtering proximity antenna array

#15
20220399630
2022-12-15

Self-deployable antenna

#16
20220352620
2022-11-03

ANTENNA DEVICE

#17
20220294117
2022-09-15

Antenna device

#18
20220129650
2022-04-28

PORTABLE RFID READER DEVICE INCLUDING CROSS YAGI ANTENNA

#19
20220077592
2022-03-10

Millimeter-wave circuit with dielectric lens

#20
20220045436
2022-02-10

Holographic antenna and holographic antenna arrangement

#21
20220006200
2022-01-06

Parasitic antenna arrays incorporating fractal metamaterials

#22
20210336337
2021-10-28

HIGH-GAIN RECONFIGURABLE ANTENNA

#23
20210313671
2021-10-07

Package structure

#24
20210305716
2021-09-30

End-fire wideband directional antenna

#25
20210280983
2021-09-09

Filtering proximity antenna array

#26
20210266033
2021-08-26

Wireless communication apparatus, wireless communication system, and communication method

#27
20210242568
2021-08-05

High-bandwidth antenna in package apparatus

#28
20210190928
2021-06-24

High confidence isolated presence detection in fine resolution region

#29
20210175634
2021-06-10

Method for restoring radio coverage

#30
20210126360
2021-04-29

HYBRID HIGH GAIN ANTENNA SYSTEMS, DEVICES, AND METHODS

#31
20210044021
2021-02-11

Antenna apparatus and antenna module

#32
20210028556
2021-01-28

Multi-port multi-beam antenna system on printed circuit board with low correlation for MIMO applications and method therefor

#33
20200403692
2020-12-24

Method and system for providing air traffic control within a geographic sector

#34
20200388909
2020-12-10

Antenna device

#35
20200328775
2020-10-15

Wireless communication apparatus, wireless communication system, and communication method

#36
20200309836
2020-10-01

Switchboard controller for manual adaptation of radiation patterns and measurements of steerable parasitic array antenna

#37
20200303829
2020-09-24

Portable BDA apparatus and method

#38
20200295455
2020-09-17

Mechanically steered and horizontally polarized antenna for aerial vehicles, and associated systems and methods

#39
20200194866
2020-06-18

Outdoor antenna

#40
20200185814
2020-06-11

Millimeter wave communication through device case

#41
20200176864
2020-06-04

Antenna device

#42
20200153112
2020-05-14

Front-end chip for dual-pole antenna array

#43
20200136265
2020-04-30

Antenna and vehicle having the same

#44
20200067173
2020-02-27

Package structure

#45
20200059009
2020-02-20

Antenna and mimo antenna

#46
20200044353
2020-02-06

Parasitic antenna arrays incorporating fractal metamaterials

#47
20200036101
2020-01-30

Tactical radio signal booster apparatus and method

#48
20200014095
2020-01-09

Electronic device with millimeter wave antennas on printed circuits

#49
20200009004
2020-01-09

Radio communication device and a RFID device for assisting visually impaired users

#50
20190393594
2019-12-26

Antenna

#51
20190372236
2019-12-05

Distributed transceiver signal switching circuit

#52
20190372226
2019-12-05

Miniaturized UWB bi-planar Yagi-based MIMO antenna system

#53
20190346946
2019-11-14

Hybrid display integratable antennas using touch sensor trace and edge discontinuity structures

#54
20190326681
2019-10-24

Microwave system

#55
20190326672
2019-10-24

Antenna apparatus and antenna module

#56
20190312362
2019-10-10

Antenna array with at least one dipole-type emitter arrangement

#57
20190280394
2019-09-12

Smart antenna assembly

#58
20190237861
2019-08-01

Chip antenna and chip antenna module including the same

#59
20190222071
2019-07-18

WIRELESS POWER TRANSMISSION SYSTEM

#60
20190214722
2019-07-11

Hybrid high gain antenna systems, devices, and methods

#61
20190165484
2019-05-30

Radar device

#62
20190165478
2019-05-30

Electronic device comprising antenna

#63
20190162839
2019-05-30

Radar radiation redirecting tape

#64
20190157773
2019-05-23

Antenna and wireless module

#65
20190148985
2019-05-16

Multiband energy harvesting

#66
20190148820
2019-05-16

Wing leading edge antenna system

#67
20190123453
2019-04-25

Radio frequency system for wearable device

#68
20190123452
2019-04-25

Radio frequency system for wearable device

#69
20190123451
2019-04-25

Microwave system

#70
20190113601
2019-04-18

RF system with an RFIC and antenna system

#71
20190103652
2019-04-04

Package structure

#72
20190097294
2019-03-28

Plug connection arrangement and system having such plug connection arrangement

#73
20190089401
2019-03-21

Distributed transceiver signal switching circuit

#74
20190089400
2019-03-21

Method to build asymmetrical transmit/receive switch with 90 degrees impedance transformation section

#75
20190089399
2019-03-21

Fast memory access control for phase and gain

#76
20190089308
2019-03-21

Wideband vector modulator and phase shifter

#77
20190089064
2019-03-21

Symmetrical front-end chip for dual-pole antenna array

#78
20190089048
2019-03-21

Radio-frequency signal shielding and channel isolation

#79
20190058259
2019-02-21

Vehicle borne radio coverage system and method

#80
20190058254
2019-02-21

Antenna and communications device

#81
20190028902
2019-01-24

Passive radio-frequency redirector device

#82
20190027804
2019-01-24

Antenna module and manufacturing method thereof

#83
20190006749
2019-01-03

Mechanically steered and horizontally polarized antenna for aerial vehicles, and associated systems and methods

#84
20180301813
2018-10-18

Microwave system

#85
20180287244
2018-10-04

Compact size, low profile, dual wideband, quasi-yagi, multiple-input multiple-output antenna system

#86
20180275789
2018-09-27

Hybrid display integratable antennas using touch sensor trace and edge discontinuity structures

#87
20180266945
2018-09-20

THz bolometer detector

#88
20180254562
2018-09-06

Vivaldi antenna-based antenna system

#89
20180233808
2018-08-16

Electronic device with millimeter wave antennas on stacked printed circuits

#90
20180233806
2018-08-16

Household appliance wireless communication network adapter

#91
20180183154
2018-06-28

Microwave system

#92
20180151960
2018-05-31

In-building communications hybrid system apparatus and method

#93
20180131094
2018-05-10

Semiconductor device package and method of manufacturing the same

#94
20180123253
2018-05-03

Communication devices and systems with coupling device and waveguide

#95
20180076526
2018-03-15

Antenna-in-package structures with broadside and end-fire radiations

#96
20180040941
2018-02-08

Radio frequency isolator

#97
20180026377
2018-01-25

Radio frequency system for wearable device

#98
20180026341
2018-01-25

Electronic device with millimeter wave antennas on printed circuits

#99
20180019520
2018-01-18

Space deployable inflatable antenna apparatus and associated methods

#100
20170331198
2017-11-16

Internally fed directional folded yagi antenna assemblies

#101
20170317418
2017-11-02

Antenna-in-package structures with broadside and end-fire radiations

#102
20170309992
2017-10-26

Electronic device with millimeter wave antennas on stacked printed circuits

#103
20170309991
2017-10-26

Electronic device with millimeter wave yagi antennas

#104
20170294716
2017-10-12

TAPERED MICROSTRIP LEAKY WAVE ANTENNA

#105
20170288315
2017-10-05

In-building-communication apparatus and method

#106
20170271775
2017-09-21

Direct transition from a waveguide to a buried chip

#107
20170264021
2017-09-14

Dipole-shaped antenna element arrangement

#108
20170256861
2017-09-07

Compact passive repeater

#109
20170237299
2017-08-17

Yagi antenna shaped wireless power transmission apparatus

#110
20170229786
2017-08-10

Antenna System and Processing Method

#111
20170229769
2017-08-10

Antenna module and circuit module

#112
20170214149
2017-07-27

Device for detecting precipitation conditions

#113
20170207532
2017-07-20

Indented antenna array for transmitter to receiver isolation

#114
20170200029
2017-07-13

Self-steering RFID tags

#115
20170170569
2017-06-15

Direct transition from a waveguide to a buried chip

#116
20170117635
2017-04-27

Techniques for designing millimeter wave printed dipole antennas

#117
20170040711
2017-02-09

Inconspicuous multi-directional antenna system configured for multiple polarization modes

#118
20170033471
2017-02-02

Antenna system

#119
20170033463
2017-02-02

Stand for planar antenna

#120
20160254594
2016-09-01

Ultra-wideband dual-band cellular basestation antenna

#121
20160197397
2016-07-07

Collapsible portable antenna

#122
20160178730
2016-06-23

RF system with an RFIC and antenna system

#123
20160172761
2016-06-16

Antenna-in-package structures with broadside and end-fire radiations

#124
20160149293
2016-05-26

System and apparatus for clothing with embedded passive repeaters for wireless communication

#125
20160087348
2016-03-24

Antenna device and method for operating the same

#126
20160072173
2016-03-10

Radiating sub-terahertz signal from tapered metallic waveguide into dielectric waveguide

#127
20160056544
2016-02-25

Antenna-in-package structures with broadside and end-fire radiations

#128
20160043473
2016-02-11

Ceiling assembly with integrated repeater antenna

#129
20160006101
2016-01-07

Dielectric waveguide combined with electrical cable

#130
20150372373
2015-12-24

Portable antenna

#131
20150333391
2015-11-19

Portable antenna

#132
20150325924
2015-11-12

Antenna arrays with modified Yagi antenna units

#133
20150318616
2015-11-05

Directive antenna apparatus mounted on a board

#134
20150255866
2015-09-10

Swivel mounted antenna

#135
20150244405
2015-08-27

Microwave system

#136
20150244074
2015-08-27

Microwave system

#137
20150244070
2015-08-27

Switchable antennas for wireless applications

#138
20150194736
2015-07-09

Quasi-yagi-type antenna

#139
20150171522
2015-06-18

ANTENNA UNIT, ANTENNA ASSEMBLY, MULTI-ANTENNA ASSEMBLY, AND WIRELESS CONNECTION DEVICE

#140
20150171521
2015-06-18

High gain antenna structure

#141
20150155636
2015-06-04

Dual antenna system

#142
20150070235
2015-03-12

Antenna device

#143
20150070228
2015-03-12

Antenna-in-package structures with broadside and end-fire radiations

#144
20150054688
2015-02-26

Method for determining an antenna array

#145
20150022413
2015-01-22

Multi-sector directive antenna

#146
20140375519
2014-12-25

Antenna device

#147
20140368396
2014-12-18

Antenna apparatus less susceptible to surrounding conductors and dielectrics

#148
20140361946
2014-12-11

Techniques for designing millimeter wave printed dipole antennas

#149
20140320377
2014-10-30

Multi-channel multi-sector smart antenna system

#150
20140292604
2014-10-02

Broadside antenna systems

#151
20140287703
2014-09-25

Interface between an integrated circuit and a dielectric waveguide using a carrier substrate with a dipole antenna and a reflector

#152
20140287702
2014-09-25

Interface between an integrated circuit and a dielectric waveguide using a dipole antenna, a reflector and a plurality of director elements

#153
20140287701
2014-09-25

Interface between an integrated circuit and a dielectric waveguide using a dipole antenna and a reflector

#154
20140285294
2014-09-25

Retractable dielectric waveguide

#155
20140285293
2014-09-25

Dielectric waveguide with RJ45 connector

#156
20140285292
2014-09-25

Dielectric waveguide with corner shielding

#157
20140285291
2014-09-25

Dielectric waveguide ribbon core member arranged orthogonal to adjacent member

#158
20140285290
2014-09-25

Dielectric waveguide combined with electrical cable

#159
20140285289
2014-09-25

Horn antenna for launching electromagnetic signal from microstrip to dielectric waveguide

#160
20140285281
2014-09-25

Coupler to launch electromagnetic signal from microstrip to dielectric waveguide

#161
20140285277
2014-09-25

Printed circuit board dielectric waveguide core and metallic waveguide end

#162
20140232572
2014-08-21

Circular antenna array for vehicular direction finding

#163
20140225795
2014-08-14

Shielding module integrating antenna and integrated circuit component

#164
20140225794
2014-08-14

Method and apparatus for beamforming

#165
20140218258
2014-08-07

Active antenna ceiling tile

#166
20140198008
2014-07-17

Passive repeater for wireless communications

#167
20140197995
2014-07-17

Stacked antenna

#168
20140145888
2014-05-29

Tunable Yagi and other antennas

#169
20140139387
2014-05-22

Ultra-wideband dual-band cellular basestation antenna

#170
20140118191
2014-05-01

Controllable directional antenna apparatus and method

#171
20140117241
2014-05-01

Dipole antenna with reflectors having low thermal mass for detection of Terahertz radiation

#172
20140002317
2014-01-02

Wide band embedded armor antenna using double parasitic elements

#173
20130335293
2013-12-19

Antenna apparatus, antenna device and signal transmitting apparatus

#174
20130313380
2013-11-28

ANTENNA DEVICE FOR ELECTROMAGNETIC MEASUREMENT

#175
20130300624
2013-11-14

BROADBAND END-FIRE MULTI-LAYER ANTENNA

#176
20130285866
2013-10-31

Dual band antenna

#177
20130214982
2013-08-22

Dipole antenna element with independently tunable sleeve

#178
20130169502
2013-07-04

Directional antenna and radiating pattern adjustment method

#179
20130162491
2013-06-27

DUAL RADIATION PATTERNS ANTENNA

#180
20130147664
2013-06-13

Reconfigurable millimeter wave multibeam antenna array

#181
20130141290
2013-06-06

Antenna device

#182
20130120209
2013-05-16

SYSTEMS AND METHODS PROVIDING PLANAR ANTENNAS INCLUDING REFLECTORS

#183
20130120194
2013-05-16

Distributed comb tapped multiband antenna

#184
20130107991
2013-05-02

Fast cross-pole corrector

#185
20130069837
2013-03-21

DIRECTIVE ANTENNA WITH ISOLATION FEATURE

#186
20130069826
2013-03-21

Switched beam smart antenna apparatus and related wireless communication circuit

#187
20130050016
2013-02-28

RADAR PACKAGE FOR MILLIMETER WAVES

#188
20130027268
2013-01-31

Antenna apparatus including dipole antenna and parasitic element arrays for forming pseudo-slot openings

#189
20130023218
2013-01-24

Adaptively optimized method and system of parasitic element selection for smart beam steering

#190
20130016023
2013-01-17

Apparatus and methods for packaging antennas with integrated circuit chips for millimeter wave applications

#191
20120299790
2012-11-29

FOLDED-DIPOLE FLAT-PLATE ANTENNA

#192
20120293387
2012-11-22

Antenna apparatus provided with dipole antenna and parasitic element pairs as arranged at intervals

#193
20120274862
2012-11-01

Outdoor Television Antenna

#194
20120266116
2012-10-18

Integrated millimeter wave antenna and transceiver on a substrate

#195
20120223870
2012-09-06

DIRECTIONAL ANTENNA FOR PORTABLE DEVICES

#196
20120200471
2012-08-09

Outdoor antenna

#197
20120127052
2012-05-24

Antenna arrangement

#198
20120026704
2012-02-02

SINGLE-BOARD WIRELESS NETWORKING ADAPTOR WITH INTEGRAL HIGH-GAIN DIRECTIONAL ANTENNA

#199
20120019422
2012-01-26

Damage resistant antenna

#200
20120002388
2012-01-05

Pulse signal generation device

#201
20110298682
2011-12-08

Dual-polarization radiating element for broadband antenna

#202
20110268159
2011-11-03

Method for locating satellites using directional finding

#203
20110241960
2011-10-06

Stacked antenna

#204
20110199271
2011-08-18

Portable dual-band antenna

#205
20110187620
2011-08-04

Aerial

#206
20110187576
2011-08-04

JAMMER ANTENNA SYSTEM

#207
20110163931
2011-07-07

Slot-fed Yagi aerial

#208
20110127336
2011-06-02

Wireless IC device and method for manufacturing same

#209
20110090131
2011-04-21

Printed dual-band Yagi-Uda antenna and circular polarization antenna

#210
20110080285
2011-04-07

DISTRESS BEACON AND DISTRESS ALARM SYSTEM

#211
20110063187
2011-03-17

Planar directional antenna

#212
20110063181
2011-03-17

PASSIVE REPEATER FOR WIRELESS COMMUNICATIONS

#213
20110057848
2011-03-10

Antenna apparatus and methods of use therefor

#214
20110053607
2011-03-03

SYSTEM FOR CONNECTION TO MOBILE PHONE NETWORKS

#215
20110043425
2011-02-24

Dual band base station antenna

#216
20110032685
2011-02-10

INTERPOSER, MODULE, AND ELECTRONICS DEVICE INCLUDING THE SAME

#217
20110012805
2011-01-20

Planar reconfigurable antenna

#218
20110012775
2011-01-20

Locating system

#219
20110009105
2011-01-13

SELF-ORGANIZING NETWORKS USING DIRECTIONAL BEAM ANTENNAS

#220
20100309068
2010-12-09

Methods and apparatus for a low reflectivity compensated antenna

#221
20100302118
2010-12-02

Compact high definition digital television antenna

#222
20100277388
2010-11-04

Portable yagi antenna kit for being frequency/wavelength adjustable by virtue of being knockdownable

#223
20100245207
2010-09-30

Multi-sector radiating device with an omni-directional mode

#224
20100231451
2010-09-16

ANTENNA DEVICE

#225
20100225555
2010-09-09

CIRCUIT BOARD FOLDED DIPOLE WITH INTEGRAL BALUN AND TRANSFORMER

#226
20100220031
2010-09-02

Wideband dielectric antenna

#227
20100220027
2010-09-02

Antenna

#228
20100197222
2010-08-05

In-building-communication apparatus and method

#229
20100149048
2010-06-17

Dual-band antenna and portable wireless communication device employing the same

#230
20100134291
2010-06-03

Radio frequency identification inlay with improved readability

#231
20100117925
2010-05-13

Mobile television antenna with integrated UHF digital booster

#232
20100117911
2010-05-13

UHF digital booster kit for a television antenna and method

#233
20100045539
2010-02-25

Antenna and wireless communication apparatus using same

#234
20100033395
2010-02-11

Integrated millimeter wave antenna and transceiver on a substrate

#235
20100026578
2010-02-04

Object locating apparatus, system and high-gain, high-selectivity antennae therefor

#236
20090309671
2009-12-17

Integrated Microstrip Circulator and Antenna Assembly

#237
20090295667
2009-12-03

ULTRA HIGH FREQUENCY PLANAR ANTENNA

#238
20090266896
2009-10-29

Methods and systems of attaching a radio transceiver to an antenna

#239
20090207088
2009-08-20

ANTENNA APPARATUS

#240
20090195471
2009-08-06

Multi-element broadband omni-directional antenna array

#241
20090194882
2009-08-06

Electronic device

#242
20090189816
2009-07-30

Near-field and far-field antenna-assembly and devices having same

#243
20090174557
2009-07-09

COMPACT FLEXIBLE HIGH GAIN ANTENNA FOR HANDHELD RFID READER

#244
20090167623
2009-07-02

Antenna apparatus

#245
20090160717
2009-06-25

Antenna device and wireless device

#246
20090160638
2009-06-25

RADIO FREQUENCY IDENTIFICATION READER SYSTEM

#247
20090046794
2009-02-19

MULTI-INPUT MULTI-OUTPUT COMMUNICATION DEVICE, ANTENNA DEVICE AND COMMUNICATION SYSTEM

#248
20090046019
2009-02-19

Antenna device and wireless terminal using the antenna device

#249
20080315991
2008-12-25

Methods and systems of attaching a radio transceiver to an antenna

#250
20080309573
2008-12-18

Modular digital UHF/VHF antenna

#251
20080303633
2008-12-11

HIGH GAIN RFID TAG ANTENNAS

#252
20080291097
2008-11-27

On-vehicle antenna system and electronic apparatus having the same

#253
20080272976
2008-11-06

Antenna device, array antenna, multi-sector antenna, high-frequency wave transceiver

#254
20080246684
2008-10-09

Variable-directivity antenna

#255
20080204339
2008-08-28

External antenna for RFID remote interrogation

#256
20080198003
2008-08-21

Marine personal locator apparatus

#257
20080186249
2008-08-07

USING A PROTECTIVE HOUSING AND A PRESSURIZED MECHANISM TO PROTECT BASE STATION ANTENNAS

#258
20080158083
2008-07-03

Vehicular multiband antenna

#259
20080150725
2008-06-26

RFID LABEL TAG AND METHOD OF MANUFACTURING THE SAME

#260
20080125177
2008-05-29

Point-to-multipoint antenna structure using multiple passive antennas

#261
20080088523
2008-04-17

Rapidly deployable antenna system

#262
20080062065
2008-03-13

MIMO antenna apparatus provided with variable impedance load element connected to parasitic element

#263
20080055175
2008-03-06

Multi-beam antenna

#264
20080048921
2008-02-28

Multi-beam antenna

#265
20080030400
2008-02-07

Beam switching antenna system and method and apparatus for controlling the same

#266
20080018550
2008-01-24

Antenna apparatus

#267
20080012714
2008-01-17

Radio frequency identification tag

#268
20070290922
2007-12-20

Beam switching antenna system and method and apparatus for controlling the same

#269
20070285313
2007-12-13

Beam switching antenna system and method and apparatus for controlling the same

#270
20070285247
2007-12-13

RFID tags for enabling batch reading of stacks of cartons

#271
20070279277
2007-12-06

Radio-frequency device, and radio-frequency tag communication device

#272
20070273600
2007-11-29

Antenna apparatus

#273
20070262912
2007-11-15

Modular digital UHF/VHF antenna

#274
20070229386
2007-10-04

Adjustable antenna element and antennas employing same

#275
20070229379
2007-10-04

Digital UHF/VHF antenna

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Reconfigurable, microstrip antenna apparatus, devices, systems, and methods

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Multi-band terahertz receiver and imaging device

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Antenna assembly and multibeam antenna assembly

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Multi-beam antenna

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Directive antenna in a dual band phased array employing spatial second harmonics

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Array antenna for suppressing back signal and method for designing the same

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2007-07-12

Mobile phone having a directed beam antenna

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2007-07-05

Printed circuit board based smart antenna

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2007-07-05

Aperiodic array antenna

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2007-07-05

Mobile communication handset with adaptive antenna array

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2007-06-21

Antenna System Positioned Within a Support Structure

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2007-06-14

RFID device with augmented grain

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2007-05-10

Antenna system with a controlled directional pattern, a transceiver and a network portable computer

#290
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2007-04-12

Planar antenna and window glass sheet for automobiles

#291
20070069969
2007-03-29

Antenna system and television receiver

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20070066257
2007-03-22

Wireless communication system

#293
20070063056
2007-03-22

Apparatus and methods for packaging antennas with integrated circuit chips for millimeter wave applications

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Antenna apparatus

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Antenna apparatus

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2006-12-14

Antenna providing downtilt and preserving half power beam width

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2006-12-07

Dipole antenna array having dipole arms tilted at an acute angle

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Radar sensor for use with automobiles

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Mobile phone having a directed beam antenna

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Antenna that uses four metal conductors