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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8164536 | Directed dual beam antenna A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight down... | 04/24/2012 |
| 8159406 | Phased-array antenna radiator for a super economical broadcast system A phased-array antenna radiator for a super economical cellular communication system is provided. The phased-array antenna radiator comprises two dipole radiators. The first dipole radiator includes a first monopole radiating element supported by a first outer condu... | 04/17/2012 |
| 8106846 | Compact circular polarized antenna According to one embodiment, an antenna comprises a plurality of elongated side radiating elements having longitudinal axes oriented at angles of between about 10 and about 80 degrees from a line perpendicular to an imaginary base plane extending across ends of the ... | 01/31/2012 |
| 8102326 | Broadcast antenna ellipticity control apparatus and method The present invention provides a phaser pack for an elliptically polarized antenna that includes a first structural component, a second structural component and a cylindrical inner conductor. The first structural component includes a recess, coupled to an input port... | 01/24/2012 |
| 8068066 | X-band turnstile antenna An X-band, crossed dipole turnstile antenna configured to be omni-directional with horizontal polarization is disclosed. It comprises a set of two dipole antennas aligned at right angles to each other attached to a common 50 ohm coaxial feedpoint and fed 90 degrees ... | 11/29/2011 |
| 8040288 | Dipole for hemispherical coverage antenna Systems and methods for providing an antenna enabling hemispherical coverage are disclosed. The system includes a conductive enclosure having an open portion and a closed portion. The system further includes a pair of perpendicularly-disposed dipole antennas. Each a... | 10/18/2011 |
| 8022886 | Crossed dual tag apparatus and system using crossed dual tag apparatus A crossed dual tag includes two tags each of which comprises, on one plane, a dipole antenna formed with conductors, a feeding part to which an IC chip is connected at the center of the dipole antenna, and a loop-shaped inductance part that is formed between the dip... | 09/20/2011 |
| 7999752 | Dipole shaped radiator arrangement An improved dipole-shaped radiator arrangement is characterized by the following features: a base is disconnected from ground or a ground surface with respect to direct current, or is capacitively coupled to a ground surface; a first dipole or radiator half is elect... | 08/16/2011 |
| 7940227 | Passive wireless transmit and receive terminator A MIMO passive wireless transmit and receive terminator system includes a base for providing a signal source and two terminators fixed substantially perpendicular to the base and parallel with each other. Each terminator includes four radiating fins spaced at approx... | 05/10/2011 |
| 7936313 | Antenna designs for radio frequency identification (RFID) tags Methods, systems, and apparatuses for antenna designs for radio frequency identification (RFID) tags are described. ... | 05/03/2011 |
| 7903042 | Antenna arrangement and window fitted with this antenna arrangement An antenna arrangement for transmitting and receiving electromagnetic signals includes a flat carrier substrate made of a dielectric material, a first conducting track applied to a surface of the carrier substrate, a second conducting track applied to an other surfa... | 03/08/2011 |
| 7868842 | Base station antenna with beam shaping structures A dual polarization base station antenna producing a beam having 3 dB azimuth beamwidth of E(theta) within 5° of the 3 dB azimuth beamwidth of E(phi). The antenna also maintains E(theta) and E(phi) within 3 dB of each other over a wide beamwidth up to 120°, and ov... | 01/11/2011 |
| 7791554 | Tulip antenna with tuning stub The tulip antenna has two orthogonally intersecting conductive plates. Each intersecting plate has two ends, and one of these ends is smoothly tapered. The intersecting plates intersect such that the tapered end of both plates together form a tapered side when the i... | 09/07/2010 |
| 7746284 | Cross dipole, cross dipole module, array antenna, and multiple input multiple output antenna The present invention relates to a cross dipole including a plurality of dipole elements respectively corresponding to a plurality of frequency bands and reconfiguring the plurality of frequency bands. A cross dipole module includes a circuit for controlling a signa... | 06/29/2010 |
| 7710343 | Compact 3-port orthogonally polarized MIMO antennas Generalized non-limiting embodiments include employing a dipole antenna and/or a half slot antenna. Each of the antennas constitutes three mutually perpendicular radiating elements to achieve good isolation and low antenna signal correlation between the three ports.... | 05/04/2010 |
| 7710342 | Crossed-dipole antenna for low-loss IBOC transmission from a common radiator apparatus and method A dual-port corporate-feed broadband antenna uses two pairs of crossed dipoles in each bay, fed by a single hybrid coupler in each bay, to support hybrid-mode IBOC® VHF-band broadcasting. Each 3 dB quarter-wave coupler receives a share of an analog FM broadcast sig... | 05/04/2010 |
| 7688271 | Dipole antenna A dipole antenna comprising a base; first and second pairs of dipoles positioned in front of the base and arranged around a central region; a first feed line which extends from the base towards the dipoles and splits at a first junction positioned in front of the ba... | 03/30/2010 |
| 7616168 | Method and system for increasing the isolation characteristic of a crossed dipole pair dual polarized antenna A method and system for increasing an isolation characteristic of a crossed dipole pair, dual polarized antenna can include a feedback system comprising a feedback element for generating a feedback signal in response to a transmitted RF signal produced by each radia... | 11/10/2009 |
| 7592965 | Decoupling arrays of radiating elements of an antenna The present invention provides an antenna comprising at least two arrays comprising respective pluralities of radiating elements in alignment, disposed in parallel planes, and metal screens interposed between the arrays, the antenna being characterized in that each ... | 09/22/2009 |
| 7573434 | Decoupling arrays for radiating elements of an antenna The present invention consists in an antenna including at least two arrays of radiating elements disposed linearly and parallel, plane metal screens being interleaved between the arrays. According to the invention screening means, added above the radiating elements,... | 08/11/2009 |
| 7535430 | Directed dipole antenna having improved sector power ratio (SPR) A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight down... | 05/19/2009 |
| 7450081 | Compact low frequency radio antenna An antenna is disclosed that comprises a pair of conductive, orthogonal arches and a pair of conductive annular sector plates, wherein adjacent legs of each arch are fastened to one of the annular sector plates and the opposite adjacent pair of legs is fastened to t... | 11/11/2008 |
| 7446727 | Cross dipole antenna and tag using the same A compact antenna structure having substantially no directivity independent of a tag direction in an RFID tag is proposed. The antenna structure includes a pair of dipole antennas is provided in a cross dipole antenna to be applied to an RFID system for communicatin... | 11/04/2008 |
| 7443356 | Antenna module An antenna module, in particular for a base station of a cellular mobile radio network, comprising a group of radiating elements capable of receiving and/or transmitting electromagnetic waves having at least two different, preferably linear orthogonal, polarizations... | 10/28/2008 |
| 7439927 | Dipole design A broadband dipole including two co-working conductors. The invention is characterized in, that a first of the conductors (11) is comprised of a rod (12) including a substantially centrally located axial hole (2), said hole (2) forming an... | 10/21/2008 |
| 7427966 | Dual polarized antenna A dual polarized antenna with at least one dual polarized radiator device comprises a reflector (3) and longitudinal or transverse webs (9, 11) provided at least on its longitudinal side and/or on its transverse side. The improvement is distinguished b... | 09/23/2008 |
| 7405710 | Multiband dual polarized adjustable beamtilt base station antenna A method and apparatus are provided for constructing a multi-band antenna (10). The method includes the steps of providing a plurality of combination-type dipole assemblies (114, 116, 118, 120, 122, FIG. 7) each defined by a box-type dipole arra... | 07/29/2008 |
| RE40434 | High isolation dual polarized antenna system using dipole radiating elements An antenna for receiving electromagnetic signals comprises: a ground plane with a length and having a vertical axis along the length. A plurality of dipole radiating elements, the radiating elements are comprised of first and second co-located, orthogonal dipoles, t... | 07/15/2008 |
| 7372424 | High power, polarization-diverse cloverleaf phased array A phased array antenna includes a substrate, and multiple radiating elements conformally mounted as micro-strip on the substrate. Each of the radiating elements is of a triangular shape, and four of the radiating elements are arranged to form a crossed bowtie clover... | 05/13/2008 |
| 7369098 | Compact multi-tiered plate antenna arrays An antenna array having a plurality of array elements is disclosed. The antenna array comprises a first array element (204A) having a first suspended radiator (207A) and a first ground conductor (206A), the first suspended radiator being displac... | 05/06/2008 |
| 7358924 | Feed network, and/or antenna having at least one antenna element and a feed network An antenna feed network is provided with a capacitive coupling device via which a capacitive connection exists to a coupled line. The coupled line section is firmly connected to the downstream appliance or antenna element, or is part of the appliance or antenna elem... | 04/15/2008 |
| 7358922 | Directed dipole antenna A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight down... | 04/15/2008 |
| 7339544 | Array antenna for suppressing back signal and method for designing the same The present invention provides a method for designing a front directional array antenna for suppressing a back signal used in a wireless communication, comprising: (a) an analogous pattern element arranging step for arranging, on a reflecting panel which is a conduc... | 03/04/2008 |
| 7333834 | Computer system providing selective wireless network enablement A computer system is provided with an antenna which disables inappropriate wireless communications when a communication controller is inconsistently connected with the antenna. The computer having a diversity antenna connected to a detachable wireless LAN card conta... | 02/19/2008 |
| 7324057 | Low wind load parabolic dish antenna fed by crosspolarized printed dipoles The present invention provides a parabolic dish reflector antenna for wireless communications that is dually polarized for diversity reception purposes while causing minimal visual disturbance for use with cellular base stations and repeaters. The antenna comprises ... | 01/29/2008 |
| 7317420 | Low cost omni-directional antenna manufactured from conductive loaded resin-based materials Omni-directional antenna devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resi... | 01/08/2008 |
| 7298345 | Dipole antenna element Described is a dipole which may includes a feed line electrically coupled to a first antenna element; a balun electrically coupled to a second antenna element; and a short assembly slidably coupled to the feed line and the balun to create a short circuit at variable... | 11/20/2007 |
| 7298344 | Series fed amplified antenna reflect array A reflect array antenna. The array includes a plurality of unit cells. Each cell includes a first dipole antenna having a first orientation and a first polarization; a second dipole antenna having a second orientation and a second polarization; and an amplifier inpu... | 11/20/2007 |
| 7292198 | System and method for an omnidirectional planar antenna apparatus with selectable elements A system and method for a wireless link to a remote receiver includes a communication device for generating RF and a planar antenna apparatus for transmitting the RF. The planar antenna apparatus includes selectable antenna elements, each of which has gain and a dir... | 11/06/2007 |
| 7289082 | Panel antenna array A system is disclosed for providing a new panel antenna array with enhanced environmental protection, increased reliability and simplified assembly through the incorporation of new array structures. In one embodiment, a panel antenna array system comprises one or mo... | 10/30/2007 |
