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<title>freepatentsonline.com</title>
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<title>freepatentsonline.com: Communications: radio wave antennas</title>
<link>http://www.freepatentsonline.com/result.html?query_txt=ccl/343%20and%20isd/04/24/2008&amp;usapp=on</link>
<description>USPTO Class 343 Communications: radio wave antennas</description>
<language>en-us</language>
<lastBuildDate>Wed Apr 30 17:03:06 EDT 2008</lastBuildDate>

<item>
<title><![CDATA[Systems and methods using ground plane filters for device isolation]]></title>
<link>http://www.freepatentsonline.com/20080094302.html</link>
<description><![CDATA[A system for reducing unwanted signals comprises a ground plane, a first active component disposed so as to cause signals in the ground plane, a second active component disposed so as to cause signals in the ground plane, wherein the ground plane provides a path for the signals from the first active component to affect the second active component and for the signals from the second active component to affect the first active component, and a filter element configured as a pattern in the ground plane receiving and attenuating the signals from each of the first and second active components.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[MOBILE WIRELESS COMMUNICATIONS DEVICE WITH MULTIPLE RF TRANSCEIVERS USING A COMMON ANTENNA AT A SAME TIME AND RELATED METHODS]]></title>
<link>http://www.freepatentsonline.com/20080094290.html</link>
<description><![CDATA[A mobile wireless communications device may include a housing and a common antenna carried by the housing and having a plurality of spaced apart signal feed points thereon. The device may further include a plurality of wireless radio frequency (RF) transceivers carried by the housing and coupled to respective ones of the signal feed points of the common antenna. Each wireless RF transceiver may also have a respective different operating frequency associated therewith. Furthermore, the device may also include a controller selectively operating at least some of the wireless RF transceivers to advantageously use the common antenna at a same time.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[ANTENNA WITH COUPLING FEEDING]]></title>
<link>http://www.freepatentsonline.com/20080094284.html</link>
<description><![CDATA[An antenna ( 10 ) is provided. The antenna ( 10 ) with coupling feeding, printed on a substrate ( 30 ) for transceiving electromagnetic signals. The antenna includes a radiator ( 12 ), a feeding portion ( 14 ), and a grounded portion ( 16 ). The radiator is for the transceiving electromagnetic signals. The feeding portion defines a gap with the radiator for coupling feeding the electromagnetic signals to the radiator via the gap. The grounded portion is disposed adjacent to the feeding portion.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Active antenna capable of wireless signal transmission and reception and mobile communication terminal having the same]]></title>
<link>http://www.freepatentsonline.com/20080094304.html</link>
<description><![CDATA[An active antenna capable of transmitting and receiving a wireless signal of a low frequency band and a mobile communication terminal having the active antenna, are provided. The active antenna includes an antenna element which transmits and receives a wireless signal, a filter which filters the wireless signal being received at the antenna element such that a wireless signal belonging to a frequency band lower than the operating frequency of the antenna element is passed, and an amplifier which amplifies the wireless signal being passed through the filter. As a result, the size of the antenna can be greatly reduced, by the use of an active antenna which receives wireless signals of low frequency bands. Additionally, a more compact mobile communication terminal can be provided, because wireless signal of both high frequency bands and low frequency bands can be transmitted and received at one antenna.]]></description>
<pubDate>April 24, 2008</pubDate>
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<item>
<title><![CDATA[Antenna with Shaped Asymmetric Main Reflector and Subreflector with Asymmetric Waveguide Feed]]></title>
<link>http://www.freepatentsonline.com/20080094298.html</link>
<description><![CDATA[A low-profile antenna system includes a main reflector ( 102 ) formed as a shaped main reflector surface that is approximately, but not precisely, parabolic. The main reflector ( 102 ) has a main reflector edge configuration ( 103 ) that is asymmetric. A feed system ( 104 ) for the main reflector includes a subreflector ( 106 ) formed as a shaped subreflector surface that is approximately, but not precisely, elliptical. The subreflector has a subreflector edge configuration ( 107 ) that is also asymmetric. An RF feed horn ( 108 ) associated with the feed system  104  has an aperture profile which also has an asymmetric shape.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Convex Mount For Element Reduction In Phased Arrays With Restricted Scan]]></title>
<link>http://www.freepatentsonline.com/20080094301.html</link>
<description><![CDATA[Grating lobe free scanning in a phased array with sparse element spacing is obtained by restricting the maximum scan angle for elements in the array, and arranging the elements in a convex form. One convex form is a paraboloid, which may be continuous, or piecewise in nature, tiled with flat segments.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Antenna assembly with improved radiating effect]]></title>
<link>http://www.freepatentsonline.com/20080094289.html</link>
<description><![CDATA[An antenna assembly includes a supporter forming two different continuous first and second surfaces, and a monopole antenna assembled on the supporter and comprising a radiating element comprising a first radiating portion, a second radiating portion respectively worked at different frequency bands, and a grounding element separated from the radiating element; wherein the first radiating portion, the radiating portion and the grounding element connecting together across the first and second surfaces to form a solid antenna.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Disk Monopole Antenna Structure]]></title>
<link>http://www.freepatentsonline.com/20080094285.html</link>
<description><![CDATA[In a disk monopole antenna structure, a semicircular region is provided, as well as an oppositely disposed, second frame-type region, which faces away from the semicircular region and forms a cut-out in the antenna structure.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method for Detection of Faulty Antenna Array Elements]]></title>
<link>http://www.freepatentsonline.com/20080094294.html</link>
<description><![CDATA[A method for early detection of faulty antenna arrays comprising the step of treating said detection as a special case of target recognition; wherein targets of interest are all previous examples of defective antenna arrays.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[DUAL POLARIZED MULTIFILAR ANTENNA]]></title>
<link>http://www.freepatentsonline.com/20080094308.html</link>
<description><![CDATA[Various embodiments are described of an antenna including a common ground plane, a first set of N approximately resonant elements with a length I 2  and a second set of M approximately resonant elements with a length I 1 . The first set of N approximately resonant elements are wound to form a first helix with an initial diameter d 2  and a height h 2.  The second set of M approximately resonant elements are wound in the opposite direction to the first set of N approximately resonant elements to form a second helix. The second helix is centrally disposed within the first helix, and d 1  is less than d 2  and h 1  is greater than h 2.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Meander Feed Structure Antenna Systems and Methods]]></title>
<link>http://www.freepatentsonline.com/20080094287.html</link>
<description><![CDATA[A transmitting and receiving system including an antenna element having first and second current paths, and a meander feed line connected to said first and second current paths, the meander feed line including a radiating portion parallel to the first current path, wherein a current in the radiating portion is in a direction opposite of a current in the first current path, and wherein a current in the second current path is in a direction the same as the current in said radiating portion.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[ANTENNA ARRANGEMENT]]></title>
<link>http://www.freepatentsonline.com/20080094299.html</link>
<description><![CDATA[There is provided an antenna arrangement for use in an ultra-wideband network, the antenna arrangement comprising a plurality of active elements for emitting radio signals; and a reflecting structure disposed between at least two of the active elements for reflecting radio signals, the reflecting structure comprising an outer reflecting surface for reflecting radio signals in a first frequency range within a frequency band and an inner reflecting surface for reflecting radio signals having a second frequency range within the frequency band. In an alternative embodiment, the antenna arrangement comprises an active element for emitting radio signals, and a reflecting structure. The reflecting structure comprises a first surface for reflecting radio signals having a first frequency range within a frequency band, the first surface being substantially transparent to radio signals outside the first frequency range, and a second surface for reflecting radio signals passed by the first surface, the second surface reflecting radio signals having a second frequency range within the frequency band.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Antenna Clusters for Active Device Reduction in Phased Arrays with Restricted Scan]]></title>
<link>http://www.freepatentsonline.com/20080094296.html</link>
<description><![CDATA[A plurality of antenna clusters form an antenna array used in microwave imaging. Each antenna cluster has at least two antenna elements and an active device. The active device controls the two antenna elements to direct microwave radiation to and from an object to capture a microwave image of the object.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Radio Frequency Coupling Structure For Coupling A Passive Element To An Electronic Device And A System Incorporating The Same]]></title>
<link>http://www.freepatentsonline.com/20080094305.html</link>
<description><![CDATA[A coupling structure for coupling a device operable at a radio frequency with a body is formed of a polymeric material loaded with a conductive filler. A portion of the surface of the body defines a coupling area of a predetermined shape that receives a conductive pad having a shape and area corresponding to the predetermined shape and coupling area. The conductive pad is positioned on the surface of the body in non-penetrating contact with the body such that, in use, the pad and the body have an impedance, substantially capacitively reactive in nature, defined therebetween that is less than the impedance of the body at the operating frequency, thereby facilitating the transfer of electromagnetic energy at the operating radio frequency between the body and the pad.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Broadband antenna]]></title>
<link>http://www.freepatentsonline.com/20080094293.html</link>
<description><![CDATA[A broadband antenna comprises a radiating element, a grounding element, a connecting element and a parasitic element. The connecting element comprises a first end and a second end. The first end of the connecting element is electrically connected to the radiating element, and the second end is electrically connected to the grounding element. The broadband antenna has a three dimensional structure which can reduce the entire volume. The radiating element extends extra radiation area; therefore, the broadband antenna has larger frequency bandwidth and better radiation characteristic.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Dielectric Resonator Radiators]]></title>
<link>http://www.freepatentsonline.com/20080094309.html</link>
<description><![CDATA[A dielectric resonator radiator comprising first and second portions, each portion being conical or monotonically varying in shape having a larger basal surface and a smaller basal surface and defining a longitudinal axis, the first and second portions being arranged with their longitudinal axes collinear and their larger basal surfaces parallel and adjacent to each other and separated by a gap.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[ANTENNA AND ANTENNA ASSEMBLY THEREOF]]></title>
<link>http://www.freepatentsonline.com/20080094283.html</link>
<description><![CDATA[An antenna disposed on a circuit board includes a first surface, a second surface, a feeding part, a body portion, a first accessory portion, a second accessory portion, and a ground plane. The feeding part includes a first feeding segment disposed on the first surface and a second feeding segment disposed on the second surface. The body portion includes a first radiation part, a second radiation part, a third radiation part, and a fourth radiation part. The first accessory portion, the second accessory portion, the first radiation part, and the second radiation part are all disposed on the first surface. The third radiation part and the fourth radiation part are disposed on the second surface. The ground plane includes a pair of first ground parts disposed on the first surface and a second ground part disposed on the second surface.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Stylus antenna device]]></title>
<link>http://www.freepatentsonline.com/20080094292.html</link>
<description><![CDATA[A stylus can be used to operate a mobile communication device and can be used as an external antenna. The stylus can be packed in a containing socket for ease of use. The stylus can also be linked to a signal linking pad to enhance signal receiving ability.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[System and method for isolating an individual radiation pattern of a given radiator in the presence of other radiators]]></title>
<link>http://www.freepatentsonline.com/20080094295.html</link>
<description><![CDATA[Disclosed is a system and method for determining the far-field radiation pattern of an antenna within a composite radiator. The method involves performing a near-field scan at an angular sample spacing corresponding to a minimum sphere centered at the crossing of two rotational axes encompassing the composite radiator, computing coefficients based on the near-field scan, adding a phase adjustment to the far field based on a translation from the scan origin to a point within the antenna, re-computing the coefficients, and truncating the re-computed coefficients, thereby retaining a number of coefficients corresponding to the diameter of a minimum sphere encompassing the antenna only. In doing so, the far-field radiation pattern of the antenna may be determined from the truncated set of coefficients with interference effects of the composite radiator substantially mitigated.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Dual polarized multifilar antenna]]></title>
<link>http://www.freepatentsonline.com/20080094307.html</link>
<description><![CDATA[An antenna including a common ground plane, a first set of n approximately resonant elements with a length l 2  and a second set of n approximately resonant elements with a length l 1 . The first set of n approximately resonant elements are wound to form a first helix with an initial diameter d 2  and a height h 2 . The second set of n approximately resonant elements are wound in the opposite direction to the first set of n approximately resonant elements to form a second helix. The second helix is centrally disposed within the first helix, and has an initial diameter d 1  and a height h 1  where d 1  is less than d 2  and h 1  is greater than h 2.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Element Reduction In Phased Arrays With Cladding]]></title>
<link>http://www.freepatentsonline.com/20080094300.html</link>
<description><![CDATA[Grating lobe free scanning in a phased array with sparse element spacing is obtained by restricting the maximum scan angle for elements in the array, and cladding the array. Array elements may be integrated into the cladding.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[WIDEBAND FRACTAL SLOT ANTENNA]]></title>
<link>http://www.freepatentsonline.com/20080094297.html</link>
<description><![CDATA[A fractal slot antenna developed for wideband communications with a reflector that increases the gain and preserves the wideband capability of the antenna. This is a typical microstrip slot antenna that is consisted from microstrip feed and radiating slot made in conductive ground. The slot shape is modified in meanings of fractal geometry. The antenna main advantage is the relatively large bandwidth and moderate efficiency. In a typical microstrip antenna the presence of reflector decreases the antenna bandwidth. Authors of this patent has discovered that applying fractalization rules in several orders to the radiating slot of the microstrip slot antennas improves their properties and particularly gain, efficiency and bandwidth in the presence of reflector. This rule will help the creation of so called “ultra wide band” antennas—with operational bandwidth more than 1-10 GHz. This antenna implementation is a recommended for WiMax, WiFi, Ultra Wideband (UWB), cell phone, GPS, DAB and various automotive implementations that need well integrated, wide bandwidth and high gain antennas.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Planer inverted-F antenna device]]></title>
<link>http://www.freepatentsonline.com/20080094303.html</link>
<description><![CDATA[Planer inverted-F antennas are easily assembled into one device without diversity. The device diminishes interferences and polarization of the antenna to obtain high gain.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Wireless Network Card Antenna Position Structure]]></title>
<link>http://www.freepatentsonline.com/20080094306.html</link>
<description><![CDATA[A wireless network card antenna position structure is disposed between an antenna and a wireless network card body to adjust and fix a rotational angle between the antenna and the wireless network card body. The wireless network card antenna position structure includes a sunk position piece and a salient position piece. The sunk position piece includes several sunk points and the salient position piece includes at least a salient point. The salient point would couple with at least one of the sunk points to fix the rotational angle of the antenna when the rotational angle of the antenna is adjusted.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Multi-frequency antenna and electronic device having the same]]></title>
<link>http://www.freepatentsonline.com/20080094288.html</link>
<description><![CDATA[The present invention provides a multi-frequency antenna and an electronic device having the same. The multi-frequency antenna comprises a radiating element, a grounding element and a connecting element. The radiating element comprises a high-frequency radiating unit and a low-frequency radiating unit, wherein the low-frequency radiating unit is constructed by bending a horizontal plane where the high-frequency radiating unit is located in an upward manner by a certain height to form a three-dimensional structure; and the connecting element is used to connect the radiating element and the grounding element.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Antenna Arrangement For A Portable Radio Communication Device, And A Portable Radio  Communication Device Comprising Such And Antenna Arrangement]]></title>
<link>http://www.freepatentsonline.com/20080094291.html</link>
<description><![CDATA[The present invention relates to an antenna arrangement for a portable radio communication device, such as a mobile phone, including RF circuitry and a portable radio communication device comprising such an antenna arrangement. The antenna arrangement is characterized in that a first connection portion ( 17; 25 ) of an antenna element ( 10 ) extends in a first direction in a plane defined by the substantially planar antenna element ( 10 ) and a second connection portion ( 18; 26 ) of the antenna element ( 10 ) extends in a second direction opposite said first direction, such that the sum of said extensions is constant.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[MULTIPLE INPUT MULTIPLE OUTPUT ANTENNA]]></title>
<link>http://www.freepatentsonline.com/20080094282.html</link>
<description><![CDATA[A MIMO antenna ( 20 ) disposed on a substrate ( 10 ) including a first surface ( 102 ) and a second surface ( 104 ). The MIMO antenna includes a first antenna ( 20 a ) and a second antenna ( 20 b ) each including a radiating body ( 22 a ), a feeding portion ( 26 a ) electrically connected to the radiating body, and a metallic ground plane ( 24 a ). The radiating body includes a first radiating portion ( 222 a ), a second radiating portion ( 226 a ), and a gap ( 28 a ) formed between the first radiating portion and the second radiating portion. The radiating body and the feeding portion of the first antenna and the ground plane of the second antenna are laid on the first surface of the substrate, and the radiating body and the feeding portion of the second antenna and the ground plane of the first antenna are laid on the second surface of the substrate.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[DECOUPLING ARRAYS OF RADIATING ELEMENTS OF AN ANTENNA]]></title>
<link>http://www.freepatentsonline.com/20080094286.html</link>
<description><![CDATA[The present invention provides an antenna comprising at least two arrays comprising respective pluralities of radiating elements in alignment, disposed in parallel planes, and metal screens interposed between the arrays, the antenna being characterized in that each metal screen comprises a bottom portion facing non-radiating portions of the radiating elements and comprising respective plane sheets disposed in planes parallel to the planes of the arrays, and top portions facing the radiating portions of the radiating elements and comprising panels, each forming an angle with the planes of the bottom portions. Preferably, each panel is oriented in alternation in one direction and in another direction on either side of the plane of the bottom portion. Advantageously, each panel comprises two wings connected to a central zone attached to the bottom portion of the screen.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Multi-band antenna unit of mobile terminal]]></title>
<link>http://www.freepatentsonline.com/20080096492.html</link>
<description><![CDATA[Disclosed is a multi-band antenna unit of a mobile terminal that includes an antenna, switch, sensor, first matching circuit, second matching circuit, diplexer, first signal processing unit, and second signal processing unit. The antenna is movably installed between first and second contacts, and transmits and receives first and second signals of different frequency bands. The switch connects the first contact to the first matching circuit or the second contact through the second matching circuit. The sensor detects an antenna position, and allowing selective connection of first or second matching circuits. Transmission and reception of multiple signals of various frequency bands is enabled using a single antenna unit, reducing the number of components, cost, and size of a mobile terminal. Additionally, performance of an antenna is improved by connecting to a proper matching circuit according to the position of the antenna.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method for producing a broadband antenna]]></title>
<link>http://www.freepatentsonline.com/20080092364.html</link>
<description><![CDATA[A method for manufacturing a broadband antenna, such as applicable for a low radar cross-section ground penetrating radar. A conductive film is deposited along a dielectric member, such as by sputtering, in such a manner that the impedance of the conducting film is a continuous function of length along the dielectric member. A sampling circuit is then coupled electrically to the feedpoint.]]></description>
<pubDate>April 24, 2008</pubDate>
</item>

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