Planar ferro-electric phase shifter
The first general purpose of this invention is to provide a novel planar ferro-electric phase shifter which is compatible with commonly-used microwave transmission media to include microstrip, inverte... Read More
Inventors: Babbitt, Richard W.; Drach, William C.; Koscica, Thomas E.;, Assignee: The United States of America as represented by the Secretary of the Army (Washington, DC) |
Automatic antenna tuner for low-cost mobile radio
OF A PREFERRED EMBODIMENT FIG. 1 illustrates an automatic antenna tuner 10 according to the invention, which includes an input selector circuit 20, a pi-type impedance matching network 30 consisting ... Read More
Inventors: Belcher, Donald K.; Bailey, David C.;, Assignee: Flash Comm, Inc. (Melbourne, FL) |
Cavity-backed slot antenna
The present invention provides a cavity-backed slot antenna designed to satisfy the aforementioned needs. An electrically small (non-resonant) cavity is used to restrict radiation to one direction fro... Read More
Inventors: Mussler, Michael E.;, Assignee: Ball Corporation (Muncie, IN) |
Plural frequency patch antenna assembly
FIGS. 1-6 show various embodiments of a microstrip match antenna, each of which is operable at a plurality of frequencies and which may be employed in the construction of an array antenna disclosed i... Read More
Inventors: Shapiro, Sanford S.; Witte, Robert A.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Method of making a transformer core comprising strips of amorphous steel wrapped around the core window
OF EMBODIMENTS The Packets Referring first to FIGS. 1 and 2, there is shown a packet 110 that is representative of a large number of packets that are used for constructing a transformer core in accor... Read More
Inventors: Klappert, Willi; Houser, William K.;, Assignee: General Electric Company (Malvern, PA) |
Conformal antenna for wireless local area network transceivers
According to the present invention in a transceiver for a wireless local area network, the transceiver comprising a housing of electrically insulating material having inner surfaces defining a compart... Read More
Inventors: Williams, David Anthony;, Assignee: Plessey Semiconductors Limited (GB) |
Antenna means for hand-held radio devices
I claim: 1. An antenna system for a portable data terminal comprising a terminal housing and a radio circuit unit having a three dimensional shape, said terminal housing receiving the radio circuit un... Read More
Inventors: West, Guy J.;, Assignee: Norand Corporation (Cedar Rapids, IA) |
Accessory RF unit for hand-held wireless telephone systems
The foregoing and other problems are overcome and the objects of the invention are realized by apparatus in accordance with embodiments of this invention. In accordance with one embodiment of the inve... Read More
Inventors: Kivela, Seppo Kalervo;, Assignee: Nokia Mobile Phones Limited (Salo, FI) |
Difference drive diversity antenna structure and method
OF THE PREFERRED EMBODIMENTS A difference drive diversity antenna structure and method for a portable wireless communication device aligns a first linear antenna parallel to a major axis of the commu... Read More
Inventors: Vannatta, Louis Jay; Smith, Hugh Kennedy; Phillips, James P.; Haub, David Ryan;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Angled antenna for portable telephone
The present invention includes an antenna for portable telephones including a nonconductive core having a bent portion and a connector portion such that the bent portion extends generally rearward fro... Read More
Inventors: Yu, Sun;, Assignee: |
Dipole antenna with parasitic elements
One object of this invention is a dipole antenna system that can be used in an array that conforms to the surface of an airborne vehicle. Another object of this invention is a dipole antenna system wh... Read More
Inventors: Coe, Richard J.; Morse, Margaret S.;, Assignee: The Boeing Company (Seattle, WA) |
Wedge feed system for wideband operation of microstrip antennas
The wedge feed system for microstrip antennas is intended to allow a single microstrip antenna system with one common input to provide a wider bandwith than prior equivalent microstrip antenna systems... Read More
Inventors: Kaloi, Cyril M.;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Deployable double-membrane surface antenna
OF THE PREFERRED EMBODIMENT: Referring to FIG. 1, a planar array antenna system 1 is shown mounted to a satellite structure 3. The antenna system includes a planar double membrane surface (see FIGS. ... Read More
Inventors: Raab, Anthony;, Assignee: CAL Corporation (Ottawa, CA) |
Pin retention system
OF THE ILLUSTRATED EMBODIMENTS In FIG. 1, the coupling pin comprises a generally cylindrical body portion 1, an enlarged head portion 2, a necked portion 3 and a shaped end portion 4 comprising three... Read More
Inventors: Peterson, Louis G.;, Assignee: G.E.T. Australia Pty Ltd. (Queensland, AU) |
Epitaxial thin superconducting thallium-based copper oxide layers
What is claimed is: 1. A superconducting article comprising an oriented, epitaxial superconducting layer of thallium, optionally calcium, barium and copper oxide on a crystalline substrate, said layer... Read More
Inventors: Olson, William L.; Eddy, Michael M.; Hammond, Robert B.; James, Timothy W.; Robinson, McDonald;, Assignee: Superconductor Technologies Inc. (Santa Barbara, CA) |
Molded patch antenna having an embedded connector and method therefor
Thus, what is claimed is: 1. A method for forming a molded patch antenna having an embedded connector, comprising the steps of: (a) forming a connector by coupling a cylindrical housing terminating in... Read More
Inventors: Dikun, Raymond; Burrell, Dennis; Dickirson, David M.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Loop antenna for radiating circularly polarized waves
I claim: 1. A loop antenna for radiating a circularly polarized wave comprising: a ground plane; a C-type loop element having a cutoff part; and an I-shape conductor having one end connected to the C-... Read More
Inventors: Nakano, Hisamatsu;, Assignee: Nippon Antenna Kabushiki Kaishya (Tokyo, JP) |
Electromagnetic antenna collimator
It is accordingly a primary object of the invention to provide an antenna construction useful for receiving and transmitting a variety of frequencies in point-to-point communications. It is another ob... Read More
Inventors: Ashbaugh, Fred E.; Anderson, Ordean S.; Anderson, Donald E.; Nair, Ramakrishna A.; Riebel, Michael J.;, Assignee: Innova, Inc. (Kent, WA) |
Radome wall design having broadband and mm-wave characteristics
These and other objects of the invention are accomplished by a multi-layer radome construction which may be termed a "D-sandwich" and allows excellent transmission efficiency over the entire spectrum ... Read More
Inventors: Mackenzie, S. Benjamin;, Assignee: Norton Company (Wrocester, MA) |
Receiver module for receiving extremely high frequency electromagnetic directional radiation fields
I claim: 1. Reception module for the reception of extremely high frequency electromagnetic directional radiation fields, consisting of a group of surface resonators which are excited by means of a cou... Read More
Inventors: Rothe, Lutz;, Assignee: Dettling + Oberhausser Ingenieurgesellschaft (DE) |
Doppler radar
There is claimed: 1. Doppler radar for measuring objects, comprising a first and a second substantially prismatic cavity resonator each having sides, each having an end facing the object to be measure... Read More
Inventors: Muller, Jorg;, Assignee: Siemens Aktiengesellschaft (Berlin and Munich, DE) |
Variable gain power amplifier
In accordance with the amplifier of the present invention, the above-described and other disadvantages of the prior art are overcome by providing plural parallel paths of amplification, each path bein... Read More
Inventors: Andricos, Constantine;, Assignee: ITT Corporation (New York, NY) |
Power amplifier device having a plurality of power amplifier units connected in parallel
It is a general object of the present invention to provide an improved power amplifier device in which the above-mentioned disadvantages are eliminated. A more specific object of the present invention... Read More
Inventors: Kibayashi, Toshimitsu; Toda, Yoshifumi;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Frequency self-compensated operational amplifier
OF THE PREFERRED EMBODIMENTS The numerous innovative teachings of the present application will be described with particular reference to the presently preferred embodiment (by way of example, and not... Read More
Inventors: Tomasini, Luciano; Castello, Rinaldo; Clerici, Giancarlo; Bietti, Ivan;, Assignee: SGS-Thomson Microelectronics, S.r.l. (Milan, IT) |
Antenna coupling device for coupling an antenna of a hand-portable telephone to a remotely located antenna
The object of the invention is to achieve an antenna coupling device that overcomes as far as possible the above mentioned drawbacks and that fulfills the demands of a high degree of coupling, simple ... Read More
Inventors: Marthinsson, Magnus;, Assignee: Allgon AB (Akersberga, SE) |
Transmission line filter having a varactor for tuning a transmission zero
Briefly, according to the invention, a tunable transmission line filter is provided which includes a first resonator having open ends. The first resonator includes a terminal for receiving a control v... Read More
Inventors: Blackburn, Dane E.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Oscillator circuit for receiving a wide frequency band signal
The present invention was made in consideration of these circumstances and has as its object to provide an oscillator which reduces noise, operates stably without the oscillation carrier flowing to a ... Read More
Inventors: Ishikawa, Nobuyuki; Imai, Tadashi;, Assignee: Sony Corporation (Tokyo, JP) |
Semiconductor device
The present invention is devised to solve the abovedescribed problems. Accordingly, it is an object of the present invention to provide a more highly-integrated BiCMOS device. To achieve the above obj... Read More
Inventors: Kim, Sung Sik;, Assignee: LG Semicon Co., Ltd. (Chungcheongbuk-Do, KR) |
Automatic volume adjustment in a wireless handset
FIG. 1 illustrates a wireless telecommunication switching system having a plurality of wireless cells (also referred to as cell sites) which are cells 101-109. These plurality of cells are providing ... Read More
Inventors: Hardouin, Larry J.;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Signal transmission reception switching apparatus
Accordingly, it is an object of the present invention to provide an improved signal transmission reception switching apparatus in which the aforenoted shortcomings and disadvantages encountered with t... Read More
Inventors: Shimo, Norio;, Assignee: Sony Corporation (Tokyo, JP) |
MEMS 
