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| Number | Title | Issue Date |
| 8049671 | Antenna configurations for compact device wireless communication A diversity antenna for use with a portable host device such as a laptop computer, for example as part of a PCMCIA card pluggable into the laptop computer to enable wireless computer by the laptop computer, includes a main antenna and a diversity antenna. Various co... | 11/01/2011 |
| 7956815 | Low-profile antenna structure A low-profile antenna structure can control its directivity with great flexibility. Excited elements 11 and 12 are symmetrically arranged on a y-axis, whereas parasitic elements 13 and 14 are symmetrically arranged on an x-axis, with resp... | 06/07/2011 |
| 7369089 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 05/06/2008 |
| 7339542 | Ultra-broadband antenna system combining an asymmetrical dipole and a biconical dipole to form a monopole An ultra-broadband antenna system is disclosed. The antenna system is a single tubular antenna structure comprising an asymmetrical dipole fed with a biconical dipole. The biconical dipole covers the high frequency spectrum, while the asymmetrical dipole covers inte... | 03/04/2008 |
| 7292200 | Parasitically coupled folded dipole multi-band antenna An antenna is provided which includes a primary folded dipole element and a feed for the primary folded dipole element. The primary folded dipole element is operable to resonate at a first frequency range. A parasitic dipole element is located within the primary fol... | 11/06/2007 |
| 7271779 | Method, system and apparatus for an antenna Embodiments of the present invention provide a microstrip-coupled dipole antenna. A microstrip of the antenna may be formed on top of a printed circuit board (PCB) and coupled to a transmission line such that the microstrip is operable to transfer electromagnetic en... | 09/18/2007 |
| 7256741 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 08/14/2007 |
| 7183988 | Directional antenna mechanism A directional antenna mechanism of a mobile radio tracking receiver, includes four antenna elements pivotably fastened to the body of the receiver. In use, the elements are turned to an operating position, in which they are pointed away from the body. After use, the... | 02/27/2007 |
| 7170449 | Antenna system for georadar An antenna system for ground penetrating radar, comprising at least two orthogonally mounted transmitter antenna elements (1, 2) and at least two orthogonally mounted receiver antenna elements (3, 4), in which the antenna elements consist of triangular... | 01/30/2007 |
| 7088298 | Antenna system An antenna system (100) comprising a first electromagnetic radiator (102) and a second electromagnetic radiator (104) is provided. The first electromagnetic radiator incorporates an off-center series feed (112) at a pre-defined distance f... | 08/08/2006 |
| 7053850 | Antenna with graduated isolation circuit A multiband antenna has a lower radiator and several upper radiators, all of which are spaced from each other and disposed on the same longitudinal axis. The lower radiator and the upper radiators form a dipole radiator that resonates in a lower frequency band. The ... | 05/30/2006 |
| 7053851 | Dual dipole antenna with isolation circuit A multiband antenna has a dipole radiator that resonates in a lower frequency band, and a stacked dual dipole radiator that resonates in a higher frequency band. An isolation circuit, tuned to block signals in the higher frequency band, is connected between one end ... | 05/30/2006 |
| 7023387 | Antenna with multiple-band patch and slot structures A multiple-band antenna having a plurality of operating frequency bands is provided. The antenna includes a plurality of structures configured for operation in respective ones of the plurality of operating frequency bands, and a plurality of structures configured fo... | 04/04/2006 |
| 7015874 | Antenna The present invention relates to radio engineering and is applicable to antenna feeder devices, mainly to compact antennas with enhanced broadbanding. An antenna comprises a spiral antenna made by conductors arranged in a single plane and formed into a bifilar helix... | 03/21/2006 |
| 6999028 | Ultra high frequency radio frequency identification tag An antenna design for radio frequency identification (“RFID”) tags. More particularly, the present invention relates to design for RFID tags particularly operating in the ultra high frequency (“UHF”) operating band. ... | 02/14/2006 |
| 6917340 | Combination antenna arrangement for several wireless communication services for vehicles A combination antenna arrangement is provided for at least two wireless communication services, wherein a closely tolerated directional diagram is configured for the first wireless service, in a frequency range assigned to it. Antenna conductor parts are provided on... | 07/12/2005 |
| 6909401 | Antenna device An antenna device for a radio communication device, preferably a portable radio communication device, comprising a first antenna element (20) comprising a first feeding portion (22) connected to a first feeding device (24), a second antenna elem... | 06/21/2005 |
| 6885349 | Vehicle antenna system A vehicle antenna array including at least one antenna element integrated into a body of the vehicle, is disclosed, which array nevertheless permits easy accessibility of the antenna element. The at least one antenna element is integrated into a lighting device of t... | 04/26/2005 |
| 6882324 | Double frequency antenna A double frequency antenna for transmitting and receiving radio signals includes a first substrate and a second substrate. The first substrate has a first surface and a second surface opposing each other. The first surface has a first radiation section to radiate a ... | 04/19/2005 |
| 6859176 | Dual-band omnidirectional antenna for wireless local area network The present invention relates to a dual-band omnidirectional antenna for wireless LANs. The antenna has a planar dielectric substrate, and first and second conductive patterns. The planar dielectric substrate has two parallel surfaces. The first conductive pattern i... | 02/22/2005 |
| 6809693 | Compact antennas having directed beams and potentially more than one degree of freedom per concentration region A compact antenna and a communication unit having the same comprises one or more input feeds and one or more sets of elements. Each set of elements is coupled to one or more of the input feeds, and each set of elements has a property that input signals applied to in... | 10/26/2004 |
| 6515628 | Dual polarization patch antenna A dual polarization patch antenna comprising a patch, first and second pairs of orthogonally disposed probes feeding said patch, and a first feed network for feeding said first pair of probes from a first feed point. The first feed network comprises a fir... | 02/04/2003 |
| 6329951 | Electrically connected multi-feed antenna system An antenna system for a portable transceiver device comprises an antenna structure for transmitting and receiving RF signals. The antenna structure includes multiple feeding ports having a common structure fully coupling multiple antennas together. This a... | 12/11/2001 |
| 6154184 | Antenna apparatus for portable phones An antenna apparatus for a portable telephone which is capable of having a better gain characteristic and also capable of achieving a better circularly polarized characteristic over a wide range is provided. This antenna apparatus is comprised of: a first... | 11/28/2000 |
| 6078295 | Tri-band antenna An antenna for use with low-band, mid-band and high-band signals, including a coaxial member, a low-band and mid-band signal input connected between one end of the coaxial member outside conductor and the device chassis ground, and a high-band signal inpu... | 06/20/2000 |
| 5793336 | Conformal antenna assemblies A conformal antenna assembly disclosed has a first antenna portion sensitive to a UHF band of frequencies. A thin, flat, low-profile, weather-resistant housing encloses the first antenna portion. The housing has a conformal back surface that conforms to t... | 08/11/1998 |
| 5543808 | Dual band EHF, VHF vehicular whip antenna A dual-band antenna in which EHF signals are connected to one end of a wauide and radiated from the other and wherein a half-dipole for VHF signals is connected to the radiating end of the waveguide and the other half-dipole for VHF is formed by a shield... | 08/06/1996 |
| 5465099 | Detectable device and movable item detecting system A detectable device attachable to a movable item for detecting movement. Radio waves having a predetermined frequency are received by the detectable device, and radio waves having a harmonic frequency of the received waves are reradiated from the detectab... | 11/07/1995 |
| 5457469 | System including spiral antenna and dipole or monopole antenna A broadband antenna system includes a frequency-dependent antenna and a frequency-independent antenna rotatably coupled to the frequency-dependent antenna. The antenna system may be arranged such that a dipole or monopole antenna is rotatably coupled to t... | 10/10/1995 |
| 5289198 | Double-folded monopole A double-folded monopole is used on a linear antenna to produce a traveling-wave distribution of current. The double fold is positioned one-quarter wavelength from the end of the antenna. The resultant antenna has three radiating elements that are orthogo... | 02/22/1994 |
| 5257032 | Antenna system including spiral antenna and dipole or monopole antenna A broadband antenna system including a frequency-dependent antenna and a frequency-independent antenna coupled to the frequency-dependent antenna. The antenna system can be arranged so that a dipole or monopole antenna is coupled to the inner or outer ter... | 10/26/1993 |
| 5166697 | Complementary bowtie dipole-slot antenna The antenna system includes a complementary "bowtie" dipole-slot antenna, the antenna having symmetrical halves about a plane of symmetry. The two halves of the antenna are slanted at the plane of symmetry such that the total included angle between the ha... | 11/24/1992 |
| 5136303 | Wrist watch type receiver A pair of bands are each secured at one end to one side of a case wherein a radio receiver is housed, and a monopole antenna having a length of 0.005λ has one end connected to the feeding point of the radio receiver and its other end exposed to the outsi... | 08/04/1992 |
| 4658260 | Telescoping multiband antenna A plural band telescopic antenna, including a band for frequencies much higher than the frequencies of the AM/FM band, is realized by making one telescopic section into a dipole high frequency antenna with its coaxial cable feed line extending through the... | 04/14/1987 |
| 4598296 | Dipole antenna system with overhead coverage having equidirectional-linear polarization A vertically oriented dipole antenna system for filling in overhead radiation or reception coverage with equidirectional-linear polarization (a linearly polarized field vector which lies in the plane of the system's vertical and horizontal axes) having, i... | 07/01/1986 |
| 4451829 | Circularly polarized antenna formed of a slotted cylindrical dipole An antenna, particularly suitable for two-way communication between a communication satellite and an aircraft in flight, having a circular polarization response, comprising a T-matched dipole element producing a pattern polarized parallel to the axis of t... | 05/29/1984 |
| 4382260 | Two channel transmit only antenna The two channel transmit only antenna includes a balanced antenna and a ground plane disposed between the two radiators of the balanced antenna. The two radiators are fed by a three wire arrangement having one conductor connected to ground and the ground ... | 05/03/1983 |
| 4340891 | Dual polarized base station receive antenna A communication system for receiving signals from both relatively low power level portable transmitters and relatively high power mobile transmitters wherein the receiving antenna utilizes selectively gain controlled vertically and horizontally polarized ... | 07/20/1982 |
| 4032921 | Broad-band spiral-slot antenna A broad-band antenna device comprising a variable aperture element which radiates or receives signals in the high frequency portion of the band and a pair of fixed aperture elements which radiate or receive signals in the low frequency portion, the variab... | 06/28/1977 |
| 3952310 | Crossed dipole and slot antenna in pyramid form Crossed dipole antenna apparatus configured so that the ends of adjacent dipoles are connected together to form a version of folded dipole antennas wherein there are slot antennas between adjacent dipole antennas. The combination slot and dipole antennas ... | 04/20/1976 |
