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Class Information
Number: 343/749
Name: Communications: radio wave antennas > Antennas > With lumped reactance for loading antenna
Description: Subject matter wherein a resonant active antenna includes an elongated portion of appreciable electrical length having lumped inductance or capacity directly in series or shunt with the elongated portion (to modify the standing wave pattern existing along the portion, or to change the effective electrical length of the portion).










Sub-classes under this class:

Class Number Class Name Patents
343/750 Adjustable reactance 113
343/751 Plural antennas 53
343/752 Reactance at free end of active antenna 111


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8711048 Damage resistant antenna Apr. 29, 2014
8681059 Antenna configuration Mar. 25, 2014
8674890 Wideband and multiband external antenna for portable transmitters Mar. 18, 2014
8659492 Multiband antenna Feb. 25, 2014
8654024 Antenna module Feb. 18, 2014
8654023 Multi-layered multi-band antenna with parasitic radiator Feb. 18, 2014
8643558 Multi-frequency antenna Feb. 4, 2014
8643554 Ultra wide band antenna element Feb. 4, 2014
8599084 Mobile communication device and antenna Dec. 3, 2013
8593353 Antenna device for a portable terminal Nov. 26, 2013
8593359 Antenna Nov. 26, 2013
8581793 RFID antenna with asymmetrical structure and method of making same Nov. 12, 2013
8570230 Antenna Oct. 29, 2013
8570232 Broadband antenna Oct. 29, 2013
8570231 Active front end module using a modal antenna approach for improved communication system performance Oct. 29, 2013
8564485 Adjustable multiband antenna and methods Oct. 22, 2013
8547281 Metamaterial antenna using a magneto-dielectric material Oct. 1, 2013
8519898 Antenna device Aug. 27, 2013
8508076 Wireless power transmission unit and power generator and power generation system with the wireless power unit Aug. 13, 2013
8502734 Printed antenna having a dual-beam diagram Aug. 6, 2013
8493272 Apparatus, method and computer program for wireless communication Jul. 23, 2013
8477071 Multi-band antenna Jul. 2, 2013
8473017 Adjustable antenna and methods Jun. 25, 2013
8462063 Metamaterial antenna arrays with radiation pattern shaping and beam switching Jun. 11, 2013
8442577 Wireless communication apparatus with an antenna shared between a plurality of communication circuits May. 14, 2013
8432320 Mobile terminal with a monopole like antenna Apr. 30, 2013
8416139 Methods and apparatus for improving the performance of an electronic device having one or more antennas Apr. 9, 2013
8368599 Simply fabricable small zeroth-order resonant antenna with extended bandwidth and high efficiency Feb. 5, 2013
8284104 Multiple-resonator antenna Oct. 9, 2012
8269684 Navigation, identification, and collision avoidance antenna systems Sep. 18, 2012
8248307 Planar antenna and electromagnetic band gap structure thereof Aug. 21, 2012
8212731 Antenna device and communication apparatus Jul. 3, 2012
8164534 Conversion of an antenna to multiband using current probes Apr. 24, 2012
8154460 Wireless communication apparatus with housing changing between open and closed states Apr. 10, 2012
8149175 Multiple band antenna Apr. 3, 2012
8130159 Electromagnetic field generation antenna for a transponder Mar. 6, 2012
8085208 Configurable radio frequency element Dec. 27, 2011
8081129 Memristive antenna Dec. 20, 2011
8081127 Electronic device, antenna thereof, and method of forming the antenna Dec. 20, 2011
8077099 Multi-band symmetric phase center folded monopole antenna for GPS/proximity munitions fuse applications Dec. 13, 2011
8059047 Capacitively loaded dipole antenna optimized for size Nov. 15, 2011
8055219 Frequency agile antenna system and method Nov. 8, 2011
8018389 Methods and apparatus for improving the performance of an electronic device having one or more antennas Sep. 13, 2011
RE42533 Capacitatively shunted quadrifilar helix antenna Jul. 12, 2011
7965249 Reconfigurable radio frequency (RF) surface with optical bias for RF antenna and RF circuit applications Jun. 21, 2011
7961152 Electronic device having helical resilient member serving as electric inductance element Jun. 14, 2011
7920095 Three-dimensional multi-frequency antenna Apr. 5, 2011
7911386 Multi-band radiating elements with composite right/left-handed meta-material transmission line Mar. 22, 2011
7889143 Multiband antenna system and methods Feb. 15, 2011
7868818 Multi-element antenna Jan. 11, 2011

1 2 3 4 5 6










 
 
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