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Class Information
Number: 343/866
Name: Communications: radio wave antennas > Antennas > Loop type
Description: Subject matter including a coil of one or more turns adapted to be connected at its ends to a pair of lead-in terminals, and further adapted to establish in or receive from space radio wave energy together with a frame for establishing a particular shape or pattern of shapes for the coil, or the coil has sufficient rigidity to establish a shape without the frame.










Sub-classes under this class:

Class Number Class Name Patents
343/868 Adjustable configuration, area or coil length 25
343/867 Plural; plural or tapped coils 359
343/871 With collapsible or foldable frame 13
343/870 With connector or terminals 36
343/869 With rotatable support 9


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

Patent Number Title Of Patent Date Issued
5966100 Quadruple-delta antenna structure Oct. 12, 1999
5963177 Methods of enhancing electronmagnetic radiation properties of encapsulated circuit, and related devices Oct. 5, 1999
5952978 Contrawound toroidal antenna Sep. 14, 1999
5949384 Antenna apparatus Sep. 7, 1999
5943022 Portable communication device including loop antenna Aug. 24, 1999
5929760 RFID conveyor antenna Jul. 27, 1999
5929825 Folded spiral antenna for a portable radio transceiver and method of forming same Jul. 27, 1999
5926144 Wearable electronic device and antenna therefor Jul. 20, 1999
5926128 Radar systems Jul. 20, 1999
5923300 Multi-phase transmitter with single receive antenna for transponder interrogator Jul. 13, 1999
5914697 Method of fabricating radio device helical antennas Jun. 22, 1999
5907522 Portable device for receiving and/or transmitting radio-transmitted messages comprising an inductive capacitive antenna May. 25, 1999
5905467 Antenna diversity in wireless communication terminals May. 18, 1999
5847683 Transmission line antenna and utility meter using same Dec. 8, 1998
5838283 Loop antenna for radiating circularly polarized waves Nov. 17, 1998
5825335 Sheet antenna apparatus Oct. 20, 1998
5808558 Remote universal send/receive utility usage data gathering system Sep. 15, 1998
5805114 Expanded quadruple-delta antenna structure Sep. 8, 1998
5767813 Efficient electrically small loop antenna with a planar base element Jun. 16, 1998
5760747 Energy diversity antenna Jun. 2, 1998
5751255 Electrically small receiving antennas May. 12, 1998
5734353 Contrawound toroidal helical antenna Mar. 31, 1998
5714965 Active reception antenna with coplanar feeder Feb. 3, 1998
5694139 Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna Dec. 2, 1997
5673054 Antenna and miniature portable wireless transceiver Sep. 30, 1997
5654723 Contrawound antenna Aug. 5, 1997
5627552 Antenna structure for use in a timepiece May. 6, 1997
5598032 Hybrid chip card capable of both contact and contact-free operation and having antenna contacts situated in a cavity for an electronic module Jan. 28, 1997
5589840 Wrist-type wireless instrument and antenna apparatus Dec. 31, 1996
5585811 Antenna device for electronic product anti-theft systems Dec. 17, 1996
5583523 Planar microwave tranceiver employing shared-ground-plane antenna Dec. 10, 1996
5526006 Electronic device wristband Jun. 11, 1996
5485166 Efficient electrically small loop antenna with a planar base element Jan. 16, 1996
5469178 Low profile antenna system for a cardlike communication receiver Nov. 21, 1995
5451965 Flexible antenna for a personal communications device Sep. 19, 1995
5442369 Toroidal antenna Aug. 15, 1995
5406297 Inventory management system Apr. 11, 1995
5371509 Planar microwave transceiver employing shared-ground-plane antenna Dec. 6, 1994
5319354 Antenna structure for communicating with an electronic tag implanted in a pneumatic tire Jun. 7, 1994
5307081 Radiator for slowly varying electromagnetic waves Apr. 26, 1994
5274392 Tilted antenna Dec. 28, 1993
5206657 Printed circuit radio frequency antenna Apr. 27, 1993
5182568 Loss cancellation element for an integral antenna receiver Jan. 26, 1993
5039996 Method of placing an electronic responder in or near an electrically conductive article, as well as an electrically conductive article provided with an electronic responder Aug. 13, 1991
5017932 Miniature antenna May. 21, 1991
4992799 Adaptable antenna Feb. 12, 1991
4983985 Cellular antenna Jan. 8, 1991
4963880 Coplanar single-coil dual function transmit and receive antenna for proximate surveillance system Oct. 16, 1990
4899039 Photodetector array for soft hat mounting using a loop antenna Feb. 6, 1990
4862181 Miniature integral antenna-radio apparatus Aug. 29, 1989

1 2 3 4 5 6 7 8










 
 
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