Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8138989 | Transmission line distributed oscillator In one embodiment, an integrated circuit antenna array includes: a substrate, a plurality of antennas adjacent the substrate; and an RF network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrat... | 03/20/2012 |
| 8130169 | Multi-input multi-output antenna system A multi-input and multi-output antenna system is disclosed. The antenna system includes a predetermined quantity of dual-feed and dual-band antennas that are arranged into a polygon on a plane. The dual-feed and dual-band antenna includes a substrate, a grounding un... | 03/06/2012 |
| 7639204 | Low visibility, fixed-tune, wide band and field-diverse antenna with dual polarization A low-visibility, fixed-tune, wideband, and field-diverse antenna provides cross-polarized fields enhancing signal communications but having helical antenna characteristics without severe circular polarization radiation thereby promoting a modern, futuristic, and di... | 12/29/2009 |
| 7439931 | Attachment rack apparatus with antenna An attachment rack apparatus with antenna is provided, including a first connection unit, a second connection unit and an antenna unit. The first connection unit includes a first attachment plate and a second attachment plate. One end of the first and second attachm... | 10/21/2008 |
| 7417592 | Portable audio wireless communication device A portable audio wireless communication device cooperating with a portable electrical apparatus with a display component has a plug for matting with the portable electrical apparatus, a speaker and a cable connected the plug and the speaker. The plug has a signal co... | 08/26/2008 |
| 7400303 | Antenna with keyed coupling An antenna comprises a lower section, an upper section, and a junction connecting them to each other. The junction has a key and a keyway to permit joining them only one way. In one embodiment, a whip assembly is joined to a mount assembly by a keyed junction. ... | 07/15/2008 |
| 7358908 | System and method for regulating antenna electrical length A system and method are provided for regulating the electrical length of an antenna. The method comprises: communicating transmission line signals at a predetermined frequency between a transceiver and an antenna; sensing transmission line signals; and, modifying th... | 04/15/2008 |
| 7319435 | Balun for an antenna A balun used in high-power applications capable of accommodating a transmission line includes a core with a top surface and a bottom surface formed from soft iron material. At least two holes are provided through the core between the top surface and the bottom surfa... | 01/15/2008 |
| 7272424 | Gametenna, interfacing wireless telephone and method An interchangeable Gametenna used in conjunction with a wireless telephone to play a game. The Gametenna includes an antenna having at least one radiating element for receiving and transmitting wireless signals, and a memory device which is physically coupled to the... | 09/18/2007 |
| 7256752 | Antenna feed structure A unitary feed structure for sliding installation in a passage in the insulative core of a dielectrically-loaded antenna comprises the unitary combination of a tubular outer shield conductor and elongate inner conductor which extends through the shield conductor and... | 08/14/2007 |
| 7212166 | Antenna structure An antenna module has a PCB with a plurality of contacts, a support element, and an antenna module. The support element has a support portion extended downwardly therefrom. The antenna module is connected with the support element. The antenna structure has a metal s... | 05/01/2007 |
| 7142166 | Wide band biconical antennas with an integrated matching system A biconical antenna; an entry conic having an entry base opposite an entry vertex and a termination conic having a termination base opposite a termination vertex. The entry and termination conics share substantially the same axis and the entry vertex is adjacent the... | 11/28/2006 |
| 7119547 | Testing apparatus A testing apparatus includes a first power supply unit and first and second coaxial cables. The first power supply supplies current to a device under test. The first coaxial cable includes a first internal conductor and a first external conductor. The second coaxial... | 10/10/2006 |
| 7116280 | High power positional fixture for a multi-polarized antenna A compact fixturing means is disclosed that delivers two or more phase tracked channels of high power (e.g., 1000 Watts) to an antenna that can produce a multiplicity of polarization depending on the phase relationship of the delivered signals. Coaxial cables are us... | 10/03/2006 |
| 7098647 | Coaxial cable unit, test apparatus, and CPU system A testing apparatus for testing a device under test, includes a power source for generating a current, a coaxial cable unit for supplying the current to the device under test, a detecting unit for detecting a voltage applied to the device under test when the current... | 08/29/2006 |
| 7084820 | Antenna device having excellent horizontal and vertical polarization characteristics An antenna device comprises a coaxial cable that has a central conductor and an outer conductor and is folded into an L-shape at an end portion. An L-shaped first-conductor-portion is electrically connected to the central conductor at the end portion of the coaxial ... | 08/01/2006 |
| 7079087 | Antenna joint connector To attain the advantages of and in accordance with the purpose of the present invention, a connector for an antenna is provided. The connector comprises a nut, insulator, contact pin, sleeve, and a captive housing. The connector is such that the housing can be posit... | 07/18/2006 |
| 7072620 | System and method for regulating antenna electrical length A system and method are provided for regulating the electrical length of an antenna. The method comprises: communicating transmission line signals at a predetermined frequency between a transceiver and an antenna; sensing transmission line signals; and, modifying th... | 07/04/2006 |
| 7057577 | Antenna connector for hazardous area A device for connecting an antenna to a hazardous enclosure. The device includes an intrinsically safe barrier for protection against electrical surges, and an explosion-proof device enclosure to contain the force of an explosion. ... | 06/06/2006 |
| 7050011 | Low profile antenna for remote vehicle communication system A low profile antenna for use in a vehicle remote communication system in accordance with the present invention includes a printed circuit board having a copper ground plane mounted on a first side thereof. A dielectric spacer is mounted to the first side of the pri... | 05/23/2006 |
| 6996421 | Antenna/coupler assembly for coaxial cable A wireless communication system for closed environments including a plurality of antennas parallel line coupled to the coaxial cable of a coaxial cable radio frequency transmission system. Each RF coupler assembly includes a quarter wavelength long conductor positio... | 02/07/2006 |
| 6980168 | Ultra-wideband antenna with wave driver and beam shaper An antenna comprises an antenna feed line having first and second conductors. It also comprises an antenna driver section having a pair of opposing cones. Each of the cones has an apex region and the cones are arranged so that the apex regions are spaced apart and a... | 12/27/2005 |
| 6958670 | Offset connector with compressible conductor A connector providing an offset interconnect has a dielectric body with first and second longitudinally opposed and laterally offset portions and an internal cavity. An offset electrically conductive path is disposed within the internal cavity. The offset electrical... | 10/25/2005 |
| 6947008 | Conformable layered antenna array A low-cost antenna array and method of manufacturing the array, in a planar form or in a structurally flexible or curved array structure are shown. The antenna array has a plurality of metallic antenna electrical and radiator elements formed on a foam core layer bon... | 09/20/2005 |
| 6947006 | Colinear antenna of the alternating coaxial type The invention relates to an antenna of colinear type. It comprises a radiating portion comprising: three substantially rectilinear conductive wire elements that are mutually parallel, comprising a central conductor and two lateral ... | 09/20/2005 |
| 6903700 | High frequency circuit substrate and method for forming the same A high frequency circuit substrate comprises a first high frequency circuit substrate including at least a first dielectric material layer, a first conductor layer, a second dielectric material layer and a second conductor layer, which are laminated in the named ord... | 06/07/2005 |
| 6859180 | Gravity-actuated submarine antenna An antenna including a feed tube with radial fins and circular plates at the ends of the tube and fins thereby forming a boundary for a plurality of resonant cavities. Curved plates, connected to the tube by switches of a switching system, partially encompass and su... | 02/22/2005 |
| 6781217 | Transmission line structure and method of signal propagation A transmission line structure comprises a plurality of conductive lines over an insulating layer. With three conductive lines, a center conductive line is disposed between the outer conductive lines to define a gap distance therebetween that is less than their heigh... | 08/24/2004 |
| 6778845 | Antenna/coupler assembly for coaxial cable A wireless communication system for closed environments including a plurality of antennas parallel line coupled to the coaxial cable of a coaxial cable radio frequency transmission system. Each antenna includes a quarter wavelength long conductor positioned between ... | 08/17/2004 |
| 6667721 | Compact broad band antenna A broad band antenna uses a bicone antenna configuration as a feed transformer and exponentially tapered reflector fins to radiate the antenna's energy. The bicone antenna design is used to match the antenna's impedance to coaxial cable impedance. The fin... | 12/23/2003 |
| 6407722 | Choke coupled coaxial connector A choke coupled coaxial connector includes a hybrid transmission line center conductor including an open-circuited transmission line having one-quarter electrical wavelength, which presents an effective short-circuit at a gap in the center conductor struc... | 06/18/2002 |
| 6385268 | Spread spectrum localizers A network of localizers determines relative locations in three-dimensional space to within 1 cm by cooperatively measuring propagation times of pseudorandom sequences of electromagnetic impulses. Ranging transmissions may include encoded digital informati... | 05/07/2002 |
| 6356245 | Microwave strip transmission lines, beamforming networks and antennas and methods for preparing the same A novel method for producing improved RF transmission lines for satellite beamforming networks and printed circuit antenna(s) comprising the steps of (1) bonding together (a) a central conductor strip or trace comprising a dielectric layer or circuit boar... | 03/12/2002 |
| 6268834 | Inductively shorted bicone antenna A bicone antenna that facilitates the passage of cables for at least one other radiating antenna. The bicone antenna has a plurality of inductive shorts spaced approximately one-quarter wavelength (at the cut-in frequency) from the antenna axis. Each indu... | 07/31/2001 |
| 6219007 | Antenna assembly An antenna assembly (1) for connection to a wireless communications device (27) for adjusting the signals of amplifiers and line extenders of a broadband communications cable, has, an antenna coil (3) connected in one end of a conducting sleeve (4), a len... | 04/17/2001 |
| 6215448 | Broadband coupler for measurement of antenna signals A selected length of antenna for a device under test is placed within a conductive inner cylinder, forming an unterminated "input" coaxial transmission line. The inner cylinder is in turn within and coaxial with a conductive outer cylinder, forming an "ou... | 04/10/2001 |
| 5977928 | High efficiency, multi-band antenna for a radio communication device The present invention provides a radio communication device having a multi-band swivel antenna assembly. The antenna assembly includes a multi-band radiating antenna element and a multi-band sleeve which allows the antenna to be tuned to multiple resonanc... | 11/02/1999 |
| 5872550 | Compressible coaxial interconnection with integrated environmental seal A coaxial IF interconnect structure that is compressible in the z-axis and provides its own environmental seal against moisture and coolant. The structure (50) includes three components, a center conductor (60), dielectric spacer structure (70), and outer... | 02/16/1999 |
| 5870064 | Signal transmission antenna mast A ridged coaxial transmission line assembly including a plurality of parallel transmission paths is fabricated from an extrusion incorporating a plurality of slotted, longitudinal bores provided with centrally located conductors held in position by insula... | 02/09/1999 |
| 5694138 | Antenna heater power through coax A method and system that provides power to an antenna clearing device through a coaxial cable used to transmit the satellite signals is disclosed. Receiver decoder box for receiving satellite signals via an LNB is connected to the LNB by the coaxial cable... | 12/02/1997 |
