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| Number | Title | Issue Date |
| 7177361 | Modulator for electromagnetic signals transmitted by a contactless transmission/reception system A data transmission device using electromagnetic wave radiation in a contactless transceiver system toward a contactless object, the data bits transmitted corresponding to the half cycle of an initial time interval during which electromagnetic waves are emitted at a... | 02/13/2007 |
| 6873298 | Plastenna flat panel antenna A flat panel antenna, monopole or dipole, formed from a conductive loaded resin-based material containing micron conductive powders or micron conductive fibers to provide conductivity. The monopole antenna has an antenna element having an outer periphery with a leng... | 03/29/2005 |
| 6563469 | Four-point loop antenna into which a matching circuit is integrated In order to feed at four points to a loop portion (12) made of conductor formed around a central axis (O) in a loop fashion along a peripheral surface of a cylindrical body (11) formed by rounding a flexible insulator film member (20) around the central a... | 05/13/2003 |
| 6559804 | Electromagnetic coupling type four-point loop antenna An electromagnetic coupling type four-point feeding loop antenna (10) comprises a cylindrical body (11) formed by rounding a flexible insulator film member (20) around a central axis (O) in a cylindrical fashion and a loop portion (12) made of conductor t... | 05/06/2003 |
| 6429829 | Antenna device An antenna device is constructed such that a short circuit exists between an antenna formed on an outer surface of a dielectric substrate and an input end side resonance electrode of a filter section formed on the inside of the dielectric substrate. An ou... | 08/06/2002 |
| 6340950 | Disc antenna system A antenna system is provided, including a substantially annular antenna element having an inner perimeter edge. The antenna system also includes a two-dimensional amplifier system coupled to the inner perimeter edge of the antenna element. The two-dimensi... | 01/22/2002 |
| 5023621 | Small antenna A small antenna for portable radios and the like in which two planar conductive boards are disposed in parallel relationship at a spaced interval which is small when compared with received radio wavelengths. A dielectric frame is disposed between the two ... | 06/11/1991 |
| 4441108 | Omnidirectional multiple-band antenna An omnidirectional multiple-band antenna for use with a plurality of simultaneously operating transceivers wherein a common conductor mast is excited by a plurality of stub-elements arranged therearound and each sized and spaced to excite a half-wave port... | 04/03/1984 |
