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Class Information
Number: 343/743
Name: Communications: radio wave antennas > Antennas > High frequency type loops > Feed coupling at spaced points on loop
Description: Subject matter wherein the antenna feed line is connected at two or more spaced points along the perimeter of the closed loop.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7505009 |
Polarization-diverse antenna array and associated methods |
Mar. 17, 2009 |
| 7385561 |
Multiple monopole antenna |
Jun. 10, 2008 |
| 6922173 |
Reconfigurable scanner and RFID system using the scanner |
Jul. 26, 2005 |
| 6816122 |
Four-point feeding loop antenna capable of easily obtaining an impedance match |
Nov. 9, 2004 |
| 6700547 |
Multidirectional walkthrough antenna |
Mar. 2, 2004 |
| 6590542 |
Double loop antenna |
Jul. 8, 2003 |
| 6563469 |
Four-point loop antenna into which a matching circuit is integrated |
May. 13, 2003 |
| 6559804 |
Electromagnetic coupling type four-point loop antenna |
May. 6, 2003 |
| 6307518 |
Antenna configuration of an apparatus for detecting a child safety seat placed on a seat of a motor vehicle |
Oct. 23, 2001 |
| 5995054 |
Communications device |
Nov. 30, 1999 |
| 5767813 |
Efficient electrically small loop antenna with a planar base element |
Jun. 16, 1998 |
| 5485166 |
Efficient electrically small loop antenna with a planar base element |
Jan. 16, 1996 |
| 5485165 |
Broadband high efficiency full wave open coaxial stub loop antenna |
Jan. 16, 1996 |
| 5128615 |
Resonator for a magnetic resonance imaging apparatus |
Jul. 7, 1992 |
| 4987423 |
Wide band loop antenna with disymmetrical feeding, notably antenna for transmission, and array antenna formed by several such antennas |
Jan. 22, 1991 |
| 4947180 |
FM antenna |
Aug. 7, 1990 |
| 4785303 |
Omnidirectional dipole loop antenna array |
Nov. 15, 1988 |
| 4746927 |
VOR antenna design |
May. 24, 1988 |
| 4661821 |
Vandalism-resistant UHF antenna |
Apr. 28, 1987 |
| 4647937 |
Antenna apparatus with tuned loop |
Mar. 3, 1987 |
| 4518965 |
Tuned small loop antenna and method for designing thereof |
May. 21, 1985 |
| 4358769 |
Loop antenna apparatus with variable directivity |
Nov. 9, 1982 |
| 4236160 |
Loop driven element antenna system and voltage feed system |
Nov. 25, 1980 |
| 3987450 |
Open rectangular antenna conductively supported on mast |
Oct. 19, 1976 |
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