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Class Information
Number: 343/819
Name: Communications: radio wave antennas > Antennas > Balanced doublet - centerfed (e.g., dipole) > With parasitic element (e.g., reflector or director) > With reflector and director
Description: Subject matter including both a director and reflector as defined in the above subclass.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8682244 Underwater communication system Mar. 25, 2014
8515344 Diver communication system Aug. 20, 2013
8502746 Planar directional antenna Aug. 6, 2013
8456283 Device and method for suppressing a transmitted signal in a receiver of an RFID writing/reading device Jun. 4, 2013
8358973 Communications system Jan. 22, 2013
8237618 Slot-fed Yagi aerial Aug. 7, 2012
8223085 Sensor element for opening of doors and gates Jul. 17, 2012
8164536 Directed dual beam antenna Apr. 24, 2012
8144070 Portable yagi antenna kit for being frequency/wavelength adjustable by virtue of being knockdownable Mar. 27, 2012
8045919 Electromagnetic/acoustic underwater communications system Oct. 25, 2011
RE42087 Tunable antenna system Feb. 1, 2011
7812770 Mobile wireless communications device including an electrically conductive, electrically floating element and related methods Oct. 12, 2010
7649504 Backfire antenna with upwardly oriented dipole assembly Jan. 19, 2010
7642965 Antenna device Jan. 5, 2010
7639198 Dipole antenna array having dipole arms tilted at an acute angle Dec. 29, 2009
7633454 Antenna array system and method for beamsteering Dec. 15, 2009
7629938 Open Yaggi antenna array Dec. 8, 2009
7580001 Antenna structure for integrated circuit die using bond wire Aug. 25, 2009
7423606 Multi-frequency RFID apparatus and methods of reading RFID tags Sep. 9, 2008
7388555 Adjustable-frequency two-element bowtie antenna Jun. 17, 2008
7365702 Antenna device Apr. 29, 2008
7352336 Directive linearly polarized monopole antenna Apr. 1, 2008
7286097 Yagi antenna with balancing tab Oct. 23, 2007
7202835 Dual band phased array employing spatial second harmonics Apr. 10, 2007
7095383 Field configurable radiation antenna device Aug. 22, 2006
6975278 Multiband branch radiator antenna element Dec. 13, 2005
6856299 Horizontal polarized bi-directional FM stereo antenna Feb. 15, 2005
6677914 Tunable antenna system Jan. 13, 2004
6606074 Dual band satellite communications antenna system with circular polarzation Aug. 12, 2003
6307524 Yagi antenna having matching coaxial cable and driven element impedances Oct. 23, 2001
6229491 Compact Yagi antenna array for aircraft May. 8, 2001
6181292 Combined UHF and VHF antenna Jan. 30, 2001
6154180 Multiband antennas Nov. 28, 2000
6095820 Radiation shielding and range extending antenna assembly Aug. 1, 2000
6046703 Compact wireless transceiver board with directional printed circuit antenna Apr. 4, 2000
5995061 No loss, multi-band, adaptable antenna Nov. 30, 1999
5929823 Multiple beam planar array with parasitic elements Jul. 27, 1999
5710548 Transmitter direction identifier Jan. 20, 1998
5612706 Dual-array yagi antenna Mar. 18, 1997
5532709 Directional antenna for vehicle entry system Jul. 2, 1996
5489914 Method of constructing multiple-frequency dipole or monopole antenna elements using closely-coupled resonators Feb. 6, 1996
5243358 Directional scanning circular phased array antenna Sep. 7, 1993
5229783 Field adjustable sectoral antenna Jul. 20, 1993
5220335 Planar microstrip Yagi antenna array Jun. 15, 1993
5061944 Broad-band high-directivity antenna Oct. 29, 1991
5008681 Microstrip antenna with parasitic elements Apr. 16, 1991
4935747 Axial mode helical antenna Jun. 19, 1990
4897664 Image plate/short backfire antenna Jan. 30, 1990
4772890 Multi-band planar antenna array Sep. 20, 1988
4518969 Vertically polarized omnidirectional antenna May. 21, 1985

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