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Patent Searching and Data


Matches 701 - 750 out of 3,380

Document Document Title
WO/2000/011753A1
The invention relates to a receiving device of a radio system, having at least three receiving antennas (A1, A2, A3) to pick up radio signals. As regards their receiving direction, the three receiving antennas (A1, A2, A3) are aligned in...  
WO1999065251A3
Apparatus and method for detecting calling location of radio signal using short pulses from a calling station. The apparatus for detecting calling location of radio signal, comprising: a plurality of antenna systems (101, 102 and 103), e...  
WO1999044297A3
A multiple access radio communication system sends IF signals from individual radio modules (29) to separate dedicated antenna modules (77) in an antenna apparatus. Each antenna module (77) is dedicated to one radio module (29), and has ...  
WO/2000/007307A2
An array antenna is constructed of radiators disposed upon a flexible substrate wherein a plurality of receiving circuits connect with respective ones of the radiators for conversion of RF (radio frequency) signals, received by the radia...  
WO/2000/003479A1
The present invention relates to a multi-carrier power amplifying arrangement (10) which comprises a number of amplifying means (2A, 2B, 2C, 2D) each of which includes a main amplifier (3A, 3B, 3C, 3D) and linearizing means. Furthermore ...  
WO/2000/002287A1
An antenna unit comprising a conductor base plate, a receiving element having a receiving terminal and arranged near the conductor base plate, and a transmitting element having a transmitting terminal and arranged near the receiving elem...  
WO/1999/067754A1
A radio frequency identification tag (14) includes a radio frequency identification tag circuit chip (12) coupled to an antenna (10) including a conductive pattern (22) printed onto a substrate (16). The substrate may form a portion of a...  
WO/1999/066592A1
Perturbation elements (2a, 2b, 2c, 2d) are attached to the outer periphery of the body (1) of a patch antenna through microwave switches (3a, 3b, 3c, 3d). The microswitches (3c, 3d) are connected to feed lines (4) which are microstrip li...  
WO/1999/066595A1
An antenna module for a road vehicle comprising a structure including a plurality of antennas having different functions and configured to be mounted on or conform to a surface of the vehicle, a data bus for conveying in a digital format...  
WO/1999/065107A1
A phased-array antenna has a multilayered structure, which comprises a radiation layer (41) including a plurality of radiating elements (1) and a phase control layer including a plurality of phase shifters (2) for controlling the phases ...  
WO/1999/065251A2
Apparatus and method for detecting calling location of radio signal using short pulses from a calling station. The apparatus for detecting calling location of radio signal, comprising: a plurality of antenna systems (101, 102 and 103), e...  
WO/1999/063496A1
A monitoring system incorporates antennas (18-21) that transmit signals at predetermined frequencies; the transmitted signals are received by tags located in the active monitoring area of the antenna (18, 19, 20, 21) which then transmit ...  
WO/1999/063623A1
Patch antenna systems for half-duplex communications which are capable of providing a positive gain, quasi-hemispherical antenna pattern over widely separated transmit and receive frequency bands. The antenna systems according to the pre...  
WO/1999/062136A1
The invention relates to an automobile antenna device having at least one antenna structure (5-10) mounted on the glass pane (3) of an automobile. The base point terminal connections of all antennas that are assembled in the contact poin...  
WO/1999/060661A1
The invention concerns a device for transmitting and receiving microwaves comprising a planar radiating element. Said device is characterised in that the radiating element (60) has, for transmitting and receiving, substantially orthogona...  
WO1999009610A8
An antenna unit which can always receive radio waves in an excellent receiving state and a signal switching circuit used for the unit. The antenna unit is prepared by placing in the same case a first antenna element which receives radio ...  
WO/1999/050931A1
A small radio apparatus such as a pager has a printed circuit loop antenna (12) comprising a generally elongate loop formed by first and second electrical conductors (22, 24) interconnected by first and second electrically conductive end...  
WO/1999/044297A2
A multiple access radio communication system sends IF signals from individual radio modules (29) to separate dedicated antenna modules (77) in an antenna apparatus. Each antenna module (77) is dedicated to one radio module (29), and has ...  
WO1999031755A3
The invention refers to an arrangement for receiving and mixing electromagnetic waves. The arrangement comprises an antenna element (24) and an amplifying transistor (10, 20). The arrangement includes means to apply a gate electrode (22)...  
WO/1999/043038A1
An antenna which comprises a circuit board which constitutes an active portion of the length of the antenna and on which are mounted electrical components for tuning the antenna.  
WO/1999/031755A2
The invention refers to an arrangement for receiving and mixing electromagnetic waves. The arrangement comprises an antenna element (24) and an amplifying transistor (10, 20). The arrangement includes means to apply a gate electrode (22)...  
WO/1999/021246A1
An improved modular masthead for use in cellular communications networks is described. The masthead unit includes a power amplifier, a duplexer and a local power supply that supplies the power amplifier. The power amplifier is arranged t...  
WO/1999/017460A1
A receiving antenna device for a receiver to be mounted on a radio-controlled model. This receiving antenna device enables an accurate tuning to be obtained, even the position of the installation of the receiver, the routing of an antenn...  
WO/1999/013591A1
The invention relates to a receiver, preferably for installation in a motor vehicle, where the receiving part (1) of the receiver is positioned in the base (3) of the antenna (2) and said receiving part (1) has at least one connection (5...  
WO/1999/009610A1
An antenna unit which can always receive radio waves in an excellent receiving state and a signal switching circuit used for the unit. The antenna unit is prepared by placing in the same case a first antenna element which receives radio ...  
WO/1998/057391A1
The invention concerns a transmitter or receiver device, comprising several layers (2) with openings such that the stack produces one or several antennae (6, 7). Hyperfrequency integrated circuits are implanted on the internal layers. Th...  
WO/1998/052246A1
The present invention provides an integrated antenna and phase shifter which has frequency-independent performance. The antenna phase shifter comprises first and second conductive spirals (18, 20) which are identical to and aligned with ...  
WO/1998/048480A1
The present invention relates to an antenna system (10) that is particularly suited for use in mobile communication applications. The antenna system (10) includes both a transmit array (26) and a receive array (24) in a side by side conf...  
WO/1998/043417A1
A wireless receiving subsystem operatively coupled to a broadcast receiver unit (12) having a frequency tuner has an antenna (14) with a feed point, an amplifier (20) located essentially at the feed point, and a transmission line (16, 40...  
WO/1998/038749A1
A radio receiver augmentation system (10) for insertion in a cassette player or compact disc player includes a receiver unit (10) and an antenna unit (40, 41). The receiver unit (10) includes an insertable element (11) having a size and ...  
WO/1998/035402A1
The invention concerns antennae whose dimensions can be modified so as to modify their radioelectric characteristics. The antenna comprises aligned conductor sections (11, 12) coupled by switching means (2) with remote control by electri...  
WO/1998/032234A1
An antenna circuit which is improved in the deterioration of amplitude characteristic in a strong electric field, an antenna circuit for AM broadcasting which can surely inhibit and damp FM-band signals in the strong electric field and a...  
WO/1998/029922A1
A method and arrangement for integrating antennas in a distributed antenna system. A remote RF unit in a distributed antenna system includes a substantially weatherproof housing, and multiple directional patch antennas are mounted on one...  
WO/1998/029920A1
Electronics unit for wireless transfer of signals, comprising an antenna part (2), an electronics part (1), and a transmission circuit part (3). The electronics part (1) is placed on a laminate with at least one substrate layer of a diel...  
WO/1998/021833A1
The present invention relates to a transmitter unit for transmitting radio frequency signals, the transmitter unit comprising: an input for receiving signals to be transmitted, signal processing means for transferring signals to be trans...  
WO/1998/015030A1
The microstrip antenna consists of a radiating metallic portion, laid on a first dielectric substratum (S1), under which a metallic mass plane (GP) is present, in which two non resonant coupling slots (SA and SB) are constructed, in corr...  
WO/1998/011626A1
An active antenna system which has a plurality of antenna elements arranged in a column with each element or subarray of elements integrated with an amplifier and other beam forming components. A separate amplifier and filter are dispose...  
WO/1998/010484A1
A dome for radar which can efficiently transmit electromagnetic waves for radar in a high frequency band of several tens of GHz and sufficiently protects an antenna element that transmits and receives the electromagnetic waves from winds...  
WO/1998/010487A1
The radio frequency unit (60) of a millimeter wave terrestrial radio includes a housing (62) with a front face (64a) and a back face (64b), a microwave radio frequency transceiver electronics package within the housing (62), an antenna (...  
WO/1998/003938A1
The invention concerns a transponder with a transmitting antenna (4) and a receiving antenna (2) and with a transceiver module (3) which is connected to both antennae and takes the form of an integrated circuit. The transmission and rece...  
WO/1997/041774A1
A system for measuring changes in the resistance of a living body includes a resistance measuring circuit (20), an amplifier circuit (30), and an indicator circuit (24) in which the amplifier circuit (30) includes a calibration circuit (...  
WO/1997/041642A1
The invention relates to a transmitter combiner arrangement, and more specifically a transmitter combiner arrangement usable in communication systems transmitting signals with a wide dynamic range, e.g. in a base station of a multilobe t...  
WO/1997/032355A1
A TV antenna element (2) is constituted by a first belt-like antenna element (4) and a second linear antenna element (5), and is stuck in a loop onto the inner surface of a door mirror case (1). Improved characteristics are obtained owin...  
WO1997002733A3  
WO/1997/023923A1
A phased-array antenna structure is provided that includes an antenna waveguide structure (404) with a plurality of waveguides (406). The antenna waveguide structure propagates the received or transmitted electromagnetic (EM) signals wit...  
WO/1997/006577A1
An antenna structure (10) includes a plurality of transmit linear elements (22a-22d) arranged parallel to one another and a plurality of receive linear elements (24a-24d) also arranged parallel to one another. Individual ones of the plur...  
WO/1997/002733A2
A microwave/millimeter wave circuit structure supports discrete circuit elements (2) by flip-chip mounting to an interconnection network (10) on a low cost non-ceramic and non-semiconductor dielectric substrate (2), preferably Duroid. Th...  
WO/1997/001766A1
A motion detection unit for detecting motion by means of Doppler frequency shift which comprises: a microwave circuit board (1) comprising an oscillator (14), a hybrid coupler circuit element (11) and a mixer (12); an antenna board (2) c...  
WO/1996/039727A1
An automatic antenna tuner (10) which conjugately matches the impedance of an electrically small antenna (14) to the impedance of a transmit amplifier output stage by using a pi-type impedance matching network (30) with adjustable capaci...  
WO/1996/038878A1
An integrated directional antenna includes a radome, a resonant cavity within the radome, a microstrip radiator and a patch re-radiator positioned within the resonant cavity to provide a directed or focused beam. A first radiator can be ...  

Matches 701 - 750 out of 3,380