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Class Information
Number: 343/850
Name: Communications: radio wave antennas > Antennas > With coupling network or impedance in the leadin
Description: Subject matter wherein an active antenna is combined with a passive network (which may be resistive, inductive, or capacitive or any combination thereof) for transmitting the signal energy between the active antenna and a source or receiver of such signal energy.










Sub-classes under this class:

Class Number Class Name Patents
343/856 Antenna forms transformer primary or secondary 30
343/865 Balanced coupling network to balanced antenna 14
343/859 Balanced to unbalanced circuit 95
343/858 Coupled to plural leadins 61
343/857 Coupling at spaced points on antenna 19
343/860 Impedance matching network 330
343/852 Plural path with impedance matching 50
343/853 With plural antennas 904
343/851 With radiation suppressor (e.g., shield) 54


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8711051 Antenna device and wireless communication apparatus Apr. 29, 2014
8692718 Antenna and wireless IC device Apr. 8, 2014
8692734 Dielectrically loaded antenna and an antenna assembly Apr. 8, 2014
8674898 Bandpass filter, radio communication module and radio communication device using the bandpass filter Mar. 18, 2014
8648766 Dual circularly polarized antenna Feb. 11, 2014
8643550 Flexible antenna Feb. 4, 2014
8643565 Low-profile antenna and feed structure Feb. 4, 2014
8643564 Triplate line inter-layer connector, and planar array antenna Feb. 4, 2014
8629813 Adjustable multi-band antenna and methods Jan. 14, 2014
8614646 Adaptive tunable antennas for wireless devices Dec. 24, 2013
8610636 Radio frequency IC device Dec. 17, 2013
8600320 Wireless communications device with an adjustable impedance matching network and associated methods Dec. 3, 2013
8587494 Internal antenna providing impedance matching for multiband Nov. 19, 2013
8587495 Multiple-input multiple-output (MIMO) antenna system Nov. 19, 2013
8570236 Antenna matching circuit control device Oct. 29, 2013
8570227 High-frequency transmit antenna system Oct. 29, 2013
8547289 Multimode antenna structure Oct. 1, 2013
8542157 Antenna module Sep. 24, 2013
8543165 Information processing apparatus, information processing system, and program Sep. 24, 2013
8543176 Method and system for optimizing impedance match in a mobile communication device Sep. 24, 2013
8537055 Portable electronic device and magnetic antenna circuit Sep. 17, 2013
8538323 Satellite architecture Sep. 17, 2013
8531346 Wireless IC device Sep. 10, 2013
8525648 Backscatter passive wireless controller with IMD frequency coding Sep. 3, 2013
8519891 Dual-polarized dual-feeding planar antenna Aug. 27, 2013
8519895 Keys and keylines used for antenna purposes Aug. 27, 2013
8508412 Semiconductor package and semiconductor device Aug. 13, 2013
8508428 Antenna arrangement Aug. 13, 2013
8502745 Antenna apparatus Aug. 6, 2013
8497815 Dielectrically loaded antenna and an antenna assembly Jul. 30, 2013
8493270 Wireless device Jul. 23, 2013
8487827 Antenna device Jul. 16, 2013
8482477 Foam layer transmission line structures Jul. 9, 2013
8477077 Antenna coupler mechanism systems and methods Jul. 2, 2013
8477076 Antenna coupler mechanism Jul. 2, 2013
8447255 Variable impedance matching network and method for the same May. 21, 2013
8441964 Feeding device for smart antenna May. 14, 2013
8436783 Dielectrically-loaded antenna May. 7, 2013
8427386 Method and circuit for transmitting and receiving radio waves with a single oscillatory circuit antenna Apr. 23, 2013
8427337 Planar dipole antenna Apr. 23, 2013
8421703 Apparatus for enabling two elements to share a common feed Apr. 16, 2013
8416143 Antenna feeding network Apr. 9, 2013
8405558 Wireless device Mar. 26, 2013
8406831 Adjustment of electromagnetic fields produced by wireless communications devices Mar. 26, 2013
8395557 Broadband antenna having electrically isolated first and second antennas Mar. 12, 2013
8391784 Communication device and high-frequency coupler Mar. 5, 2013
8391806 Wireless communications device with an adjustable impedance matching network and associated methods Mar. 5, 2013
8384601 Semiconductor device Feb. 26, 2013
8344957 Mobile device and radio communication portion of mobile device Jan. 1, 2013
8339318 RFID UHF antenna and matching network embedded in disposable conducting covers Dec. 25, 2012

1 2 3 4 5 6 7 8










 
 
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