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WO/2001/004989A1 |
In a whip antenna in which a second antenna element (2) are enclosed in a mold of resin material together with one end of a conductive sleeve (6), a coating portion (9) is made of the resin material to cover a first antenna element (1). ...
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WO/2001/003234A1 |
An antenna (28) for use in a wireless communication module (10) includes a shield plate (40), an antenna loop element (42), and a transmission line element (44). The wireless communication module (10) also includes a receiver (37) having...
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WO/2001/003239A1 |
The invention relates to a helical antenna (1) which can be supplied with various radiating characteristics in different modes. The helical antenna (1) comprises four electrically conductive helical limbs (11, 12, 13, 14) which are guide...
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WO/2001/001519A1 |
A directional antenna, on a periphery or one side of which is provided an electromagnetic interference suppressor (3) composed of the magnetic compound that contains oxide-coated magnetically soft powder. This antenna is suitable for a s...
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WO/2001/001518A1 |
A helical antenna is fed in a noncontact manner. The helical antenna (15) is inserted in a position opposed to the slots (3a-3d) in a noncontact manner inside the dielectric cylinder (1). The strip conductors (4a-4d) are perpendicular to...
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WO/2000/079649A1 |
The invention relates to a device for transmitting and/or receiving electromagnetic waves, comprising at least one radiating element for radiating circular polarization in a given direction. The invention is characterized in that it comp...
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WO/2000/079644A1 |
An antenna device for several frequency bands comprises two radiating elements. The first element is a rod arrangement (22) which radiates in several frequency bands, while the second element (15) includes a pattern of conductor portions...
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WO/2000/077951A1 |
A method for controlling the radiation pattern of an antenna means (1) comprising N helically configured radiating elements (12¿1?-12¿N?), where N is an integer greater than 1, an antenna system, comprising N helically configured radia...
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WO/2000/077885A1 |
The present invention relates to an antenna arrangement in a communication apparatus (8) for single, dual and/or multi-band frequency including at least two antenna elements (20, 30): a first antenna element (20) having a first (21) and ...
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WO/2000/074173A1 |
A dielectrically-loaded antenna for operation at frequencies in excess of 200 MHz includes an antenna element structure disposed on a high dielectric constant core, which element structure comprises a pair of laterally opposed groups of ...
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WO/2000/072405A1 |
An apparatus (10), system and method for providing audio broadcast signals received from a satellite radio receiver (30). A window clip (12) having an integral transmission line (16) is mounted on the edge of a vehicle window (14). The i...
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WO/2000/070710A1 |
Disclosed is a helical antenna manufacturing apparatus and method. A controller controls a core driver and a roller driver to rotate a core and a roller according to an rpm which is pre-set according to diameters of the core and the roll...
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WO/2000/070571A1 |
A remote data collection system for collecting usage data from an endpoint. The monitoring module (40) has a wireless transmitter to transmit the usage data. The system also includes a receiver (100) to receive usage data from the wirele...
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WO/2000/069015A1 |
A feeding or decoupling device for coaxial lines has a spur line (SL) which is short-circuited at the end. The aim of the invention is to provide at least one simple coaxial line with a broadband connection between the inner and outer co...
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WO/2000/060697A1 |
A rear case (13) of those that compose a cellular phone includes part of a case body (10) and an antenna mount (11). An antenna (2) for transmitting and receiving radio waves for satellite communications comprises a cylindrical driver el...
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WO/2000/059069A1 |
An antenna for transmitting information by means of electromagnetic fields in free space is formed as a supertoroidal conductor, comprising a helical coil of wire with the coil itself being wound helically around a toroidal former to for...
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WO/2000/059070A1 |
The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequenc...
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WO2000028621A9 |
An electromagnetic wave is transmitted from and received by an antenna system (300) having a cavity member (310), a passive antenna element (320) and a driver element (330). The cavity member has a back portion (311) and a wall portion (...
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WO/2000/052785A1 |
A self-resonant vertically polarized folded unipole antenna for long wave (LW), medium wave (MW) broadcasting and for the 160 meter amateur radio band with a grounded tower connected to radially descending fold wires terminated near the ...
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WO/2000/052786A1 |
Apparatus, and an associated method, facilitates maintenance of ambient temperature levels within a radio base station cabinet (14) above a minimum temperature. During periods of low activity at a radio base station (14), signals are app...
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WO/2000/048268A1 |
A quadrifilar antenna for operation at a frequency above 200 MHz has an antenna element structure with four longitudinally extending helical antenna elements on the cylindrical outer surface of a ceramic core. The core is made of a solid...
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WO/2000/042677A1 |
In operation of a portable radio device, a second case (3) housing an antenna (4) is swung out on a hinge (2) to bring the antenna away from a radio case (1), and the antenna (4) is extended. In this manner, the antenna (4) is sufficient...
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WO/2000/041149A1 |
A coil array for an EAS marker deactivation device (10, 10') is formed by stacking planar substrates (16, 18, 20, 22), on each of which a respective array of spiral coils (A11, A12, ...) was formed by a deposition and etching process. Th...
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WO/2000/039886A1 |
Antenna elements (1 to 4) are arranged to form rhombuses, each side having a length (a) of a half wavelength ($g(l)/2). Antenna elements (5 to 12) are bent at three points so that each side can have a length (b) of a quarter wavelength (...
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WO/2000/039887A1 |
A dielectric-loaded antenna for circularly polarised radiation has a generally cylindrical solid dielectric body (16) with a relative dielectric constant greater than 5, upon which body is plated a conductive sleeve (24) encircling the b...
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WO/2000/033419A1 |
An antenna system that includes a plurality of mounting plates arranged in a generally circular configuration. Each mounting plate has an inside surface and an outside surface. Each antenna element has a high frequency end and a low freq...
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WO/2000/031822A1 |
Disclosed is a broadband, miniaturized, slow-wave antenna (100) for transmitting and receiving radio frequency (RF) signals. The slow-wave antenna comprises a dielectric substrate (106) with a traveling wave structure mounted on one surf...
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WO/2000/031826A1 |
A compact broadband log-periodic antenna (5) for transmitting and receiving frequencies between 0.5 to 18 GHz. The antenna comprises two dielectric substrates (10, 12) bonded together, both substrates comprise a first group of dipole ele...
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WO/2000/030207A1 |
A pan-shaped small reflection board (9) provided below a rod-like satellite communication antenna (7) stored facing downward on standby and held, in order to improve a signal receiving capability of a portable terminal device on standby ...
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WO/2000/030214A1 |
A multiple loop antenna (70) is provided which may be connected to either a transmit circuit, a receive circuit, or a transmit/receive circuit (80). When powered by a transmit circuit (60), the antenna (70) generates radio frequency magn...
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WO/2000/026990A1 |
A radiating element comprises a helical element (1), a diode (2) and a helical element (3). When the diode (2) is off, the helical elements (1, 3) are isolated from each other, so that only helical element (1) alone operates as a radiati...
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WO/2000/026991A1 |
A rotating field antenna is provided which includes a figure eight shape loop, a center loop magnetically coupled to the figure eight shape loop, and a drive element for driving the figure eight loop. The figure eight shape loop has an u...
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WO/2000/019562A1 |
An antenna feeding circuit needing no balanced-to-unbalanced transformer and having a simple structure. A microstrip line comprises a pair of strip conductors (5a, 5b) provided on the outer surface of a tube (1) and an internal conductor...
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WO/2000/019563A1 |
A compact, low cost antenna communicates with low and medium earth orbit satellites (104). The antenna (200) includes a plurality of micro-strip elements (204, 212) arranged about an axis and positioned to illuminate upper elevation angl...
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WO/2000/016439A2 |
The invention relates to an antenna which can be operated in several frequency bands. The inventive antenna has at least one part (1) that encloses an area and at least one part (2) that does not enclose an area. The at least two parts (...
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WO/2000/016441A1 |
A sectored antenna system has one or more dielectric lenses (20), each having a surface and two or more low profile antenna feed devices (21). At least one of the feed devices radiate signals into said lenses that emerge as separate dire...
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WO/2000/011750A1 |
A helical antenna having a radiator portion (110) formed on a flexible substrate (112) and a rigid substrate (120) with a center feed element (118) electrically connected to the radiator portion (110). The flexible substrate (112) is sup...
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WO/2000/011748A2 |
The present invention relates to problems with how to achieve a reliable and efficient connection between circuitry in a radio communication device and an extendable and retractable antenna device, which is operable in both extended and ...
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WO/2000/008713A1 |
A low profile antenna with high gain at low elevations suitable for satellite communications consists of a helical loop with turns tightly spaced to provide a strong coupling therebetween. The pitch is typically 1 to 2 degrees. The helic...
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WO/2000/008711A1 |
The present invention relates to an antenna (1) for transmitting and receiving signals. The inventive antenna comprises a first antenna element (2) for transmitting and receiving signals of a given frequency, whereby said antenna element...
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WO/2000/008707A1 |
A communication terminal including a communication unit, a longitudinal antenna enclosed in a radome, and a pivot connecting the antenna to the unit for pivoting about an axis with an RF connection to the unit. The unit is in a box-shape...
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WO/2000/008712A1 |
The present invention relates to an antenna (1) for transmitting or receiving signals, comprising at least one first antenna element (2) for low frequencies and a second antenna element (3) for high frequencies. Both antennae are shaped ...
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WO/2000/005781A1 |
An antenna device (1) for portable communication equipment and comprising an extendable elongated antenna element (2) which at its lower part comprises first and second contact surfaces and which is slidable inside a casing (5) between a...
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WO/2000/005780A1 |
The present invention pertains to the production of radio-electronic devices and more precisely to that of antenna-feeder devices. This invention may be used in portable (pocket) reception indicators for the GPS and GLONASS satellite rad...
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WO/2000/003454A1 |
Radiotelephones having retractable antenna systems are disclosed which include a helix antenna coupled to an extendible rod antenna. When the rod antenna is in the retracted position, the rod antenna is mostly, or completely, located wit...
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WO/2000/001029A1 |
An antenna unit for portable phones comprising: a first cylinder (4) erecting vertically from the upper part of a case (1) of a portable phone; a four-element dipole array antenna (4a-4d) connected to a transmitter/receiver circuit incor...
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WO/1999/067852A1 |
A tuneable antenna has at least a first and a second separate radiators (1, 2) coupled to each other. The coupling between the radiators (1, 2) can be modified by rotating and/or displacing the radiators (1, 2) with respect to each other...
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WO/1999/066591A1 |
A dielectric-loaded antenna having a plurality of radiating elements (10A, 10B) and a loop element (20) plated on the surface of a cylindrical ceramic core (12) has balanced and single-ended modes of resonance which are coupled together ...
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WO/1999/065106A1 |
A system and a method for slidable connection of a satellite antenna (202) to a mobile radio (100) comprising the satellite antenna including a satellite antenna element and at least one antenna contact (204) coupled thereto; and at leas...
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WO/1999/063626A2 |
An antenna connector (10) for radio communication equipment is disclosed. The above connector (10) converts the conventional parallel resonance of an antenna into a series resonance by forming a flat cutout portion (11a) on its impedance...
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