US3599214A - Automobile windshield antenna - Google Patents

Automobile windshield antenna Download PDF

Info

Publication number
US3599214A
US3599214A US3599214DA US3599214A US 3599214 A US3599214 A US 3599214A US 3599214D A US3599214D A US 3599214DA US 3599214 A US3599214 A US 3599214A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
antenna
member
shaped
conductive
dielectric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
John Altmayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEW TRONICS CORP
Original Assignee
NEW TRONICS CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/1271Supports; Mounting means for mounting on windscreens

Abstract

A nondirectional automobile receiver antenna which may be utilized on either the low frequency broadcast band or the very high frequency, frequency-modulated (FM) band, and which is adapted to be adhesively attached to or embedded within the windshield of an automobile.

Description

United States Patent John Altmayer Euclid, Ohio Mar. 10, 1969 Aug. 10, 1971 New-Tronics Corporation Brook Park, Ohio Inventor Ap l. No. Filed Patented Assignee AUTOMOBILE WINDSHIELD ANTENNA .12 Claims, 7 Drawing Figs.

' U.S; C l 343/713, 343/722, 343/724, 343/803 Int. Cl H0lq 1/32 Field of Search 343/711,

References Cited UNITED STATES PATENTS 3,414,902 12/1968 Shaw 343/713 FOREIGN PATENTS 800,577 8/1958 Great Britain Primary Examiner-Eli Lieberman Atrorney-Meyer, Tilberry and Body ABSTRACT: A nondirectional automobile receiver antenna which may be utilized on either the low frequency broadcast band or the very high frequency, frequency-modulated (FM) band, and which is ada pted'to be adhe'sively attached to or embedded within the windshield of an automobile' PATENTED AUBIOIBYI 3,599,214

I NVEN TOR. JOHN ALTMAYER I4 46 m Mam,

ATTORNEYS ous applications which require a nondirectional, multiband radio antenna.

In thepast, substantially all automobile radio antennas have been of the vertical type, and have generally been mounted on an external surface, such as a fender, of the automobile. Such antennas are inherently subject to being broken upon striking stationary objects, such as tree branches, etcetera.

Automobile antennas of the type to which this invention pertains have heretofore normally included a generally looptypeantenna designed to be embedded within, the glass pane around the perimeter of an automobile wind shield. Since the antenna element must be embedded in the glass pane at the time the windshield is manufactured, it is not practicable to install an antenna of this type after the automobile has beenassem bled. In addition, these generally loop-type antennas have exhibited the characteristic of having extremely directional reception characteristics, i.e., the signal strength of the received signal was dependent upon the alignment of the automobile with respect to the radio station. Astill further problem associated with this type of antenna is that the antenna is of a configuration such that the antenna could ,be utilized on only a single band of frequencies, for examplegthe'amplitude-modulated (AM) band, which is generally a relative low band of frequencies, such as 550 to 1600 kilohertz.

The present invention'is directed toward a new and improved antenna which overcomesall of the above referred-to problems. and others, and provides an antenna'which is simple in construction andinstallation.

'ln accordance with the present invention there is provided a multiband antenna adapted to be attached to or embedded within a dielectric support, such as an automobile window or windshield, and comprising a first and second elongated, generally U-shaped conductive member each having a pair of terminals; one of the terminals of the first U-shapedmember being connected to a corresponding terminal of the second U- shaped conductive member and the other terminal of the first U-shaped member being adapted to be coupled to one conductor of a transmission line; and capacitance means associated with the second U-shaped conductive member and exhibiting the characteristic of providing a capacitive reactance with respect to the second U-s'haped conductive member, and the capacitance means being adapted to be connected to the other conductor of the transmission line. The capacitance has a value such that at the lower frequencies, it presents a high impedance or open circuit and the antenna functions as a folded long wire antenna, and at the higher frequencies the capacity presents a low impedance or short circuit and the antenna functions as a folded dipole usually resonant at or near the frequency being received. In accordance with a more limited aspect of the present in vention, the second U-shaped conductive member has a first.

and second leg. the first leg of the second U-shaped conductive member is connected to one of the terminals the first U- shaped conductive member; and, the capacitance means inof the capacitor is adapted to be coupled to the other conductor of the transmission line.

In accordance with a still more limited aspect-of the present invention, the U-shaped conductive members carry means for adhesively attaching the conductive members to an automobile window, one of the U-shaped members is attached to the window of an automobile in a generally vertical plane, and the other U-shaped member is attached to the window in a generally horizontal plane to thereby provide an antenna which exhibits substantially nondirectional reception characteristics.

The primary object of the present invention is to provide a nondirectional, multiband antenna adapted to be mounted on or embedded in a window orwindshield of an automobile.

Another object of the present invention is to provide a nondirectional, multiband antenna of a configuration adapted to be mounted on or embedded within the windshield or an automobile without obstructing the forward visibility of the driver. v t v 1 A still further object of the present invention is to provide an automobile antenna of an electrical configuration such that the antenna may be utilized with conventional amplitude modulated (AM), i.e,,-550 to 1600 kilohertz, and/or frequency modulated FM i. e., 88 to 108 megahertz, automobile receivers. I

In accordance with another object of the present invention, there' is provided an automobile radio antenna which is mounted within the interior of anautomobile, and whichjm ay be use as a direct replacement for conventional fendermounted automobile antennas. I i

in accordance with a still further object of the present invention, there is provided an antenna for an automobile receiver which may be located on the periphery of the automobile windshield, and which may be attached to the windshield after the automobile is assembled.

In accordance with a still further aspect of the present invention, there is provided an antenna which may be utilized with amplitude modulated (AM) and/or frequency modulated FM automabile. radios, which may be mounted within a window or windshield or anautomobile, and which is a direct replacement for conventional-fender-mounted automobile antennas.

These and other objects and advantages of the present invention will become apparentfrom the followingdescription of the preferred embodiment of the invention as read in connection with the accompanying drawings in which:

FIG. 1 is an elevational view illustrating the preferred embodiment of the present invention attached to an automobile windshield; v

FIG. 2 is a sectional view taken generally along line 2-2 of FIG. 1;

eludes an elongated conductive element which extends substantially parallel to the second leg of the second Ushaped conductive member, and the elongated conductive element includes a terminal adapted to be coupled to the other conductor ofthe transmission line.

In accordance with another embodiment of the present invention, the capacitance means is comprised of a capacitor having one terminal connected to the other terminal of the second U-shaped conductive member and the other terminal FIG. 3 is an expanded sectional view of the embodiment shown in FIG. 1; v

FIGS. 4, 5 and 6 are schematic illustrations of the embodiment of the present invention shown in FIG. 1; and, FIG. 7 is an elevational view illustrating a second embodiment of the present invention.

Referring now to the drawings wherein the showings are'for purposes of illustrating preferred embodiments of the present invention, and not for purposes of limiting same, FIG. 1 illustrates an antenna constructed in accordance with the present invention, and generally comprises an antenna element 10 attached to an automobile windshield l2, and connected to a feedline 14. The antenna element 10 is comprised of a pair of elongated, generally U-shaped conductive members 16 and 18, each having a pair of terminals 20, 22 and 24, 26, respectively. Preferably, U-shaped conductive members-l6 and 18 are comprised of'a thin, copper wire extendingin a generally elongated U-shaped fashion, and are preferably completely encased or embedded in thin, flexible, transparent, plastic rib-- bons 28 and 30, respectively. The thin plastic ribbons 28 and 30 are attached to an automobile window or windshield with an adhesive material, although other suitable methods of attaching the U-shaped conductive members, within the scope of this invention, are contemplated. Further, it is also contemplated that the U-shaped conductive members 16 and 18 could be completely embedded within the glass pane of an automobile window or windshield, and may take the form of wire conductors as shown or could be applied as thin film conductive material interposed within the glass pane.

As illustrated in FIG. 1, the U-shaped conductive member 16 is adhesively attached to the windshield in a generally vertical plane, and conductive member 18 is attached to the windshield in a generally horizontal plane, thereby providing a nondirectional antenna, as well as an antenna having a configuration such that the forward visibility of the driver is not obstructed. It is contemplated, however, that the U-shap ed conductive members could both extend either in a horizontal or vertical plane.

Reference is now made to FIG. 3, which more particularly illustrates the electrical circuit arrangement. Terminal 20 of U-shaped member 18 is connected to terminal 24 of 'U-shaped member 16, terminal 22 of U-shaped member 18 is connected to a conductor 38 of the feedline or transmission line 14, and terminal 26 of U-shaped member 16 is connected through a capacitor 40 to the other conductor 42 of transmission line 14. The U-shaped conductive member 16 and 18 are of a length and'spacing between the legs thereof such that the antenna is approximately resonate when operated on the very high frequency band of frequencies.

Capacitor-40, as well as the circuit connections between the conductors 38, 42 of transmission line 14 and't'erminals 20,

'22, 24, and 26 of U-shaped conductive members 16, 18 is completely encapsulated in a disk-shaped enclosure 43, preferably formed of an epoxy material.

Conductor 42 of transmission line 14 is. connected to the outer portion of a connector 46, which takes the form'of a conventional bayonet-type antenna plug, and the other con- 'ductor 38 of transmission line 14 is connected to the center portion of connector 46. 1 v

Reference is now made to FIG. 7 which illustrates a second embodiment of the present invention, and which is somewhat similarto the preferred embodiment as illustrated in FIG. 3; therefore, corresponding elements are designated with the same element numeral. As is apparent from FIG. 7, capacitor 40 in the preferred embodiment is eliminated and a single elongated conductive member of wire 50, which extends substantially parallel to the free leg of U-shaped member is substitutedtherefor. Thus, terminal 26 of U-shaped member 16 I terminates without being connected to any other circuit element, and elongated conductor 50 extends substantially parallel to the free leg of U-shaped member 16 and is connected to conductor 42 of transmission line 14.

Reference is now made to FIGS. 4 through 6 which illustrate a schematic diagram of the electrical circuit representative of the antennas shown in FIGS. 3 and 7. Capacitor 40, i which in the preferred embodiment is a 40 picofarad capacitor, exhibits the characteristic of providing a high impedance to the flow of current, as illustrated in FIG. 6, when the antenna is operated on the lower frequency bands, such as the amplitude-modulated (AM) broadcast band, i.e., 550 to 1600 kilohertz'. As is apparent from FIG. 6, when the capacitor exhibits a high impedance or approximately an open circuit impedance, the antenna appears as a folded,.long-wire type antenna connected to the center portion of connector 46. When the antenna is operated on a relatively higher frequency band, capacitor 40 exhibits the characteristic of providing a-low impedance to the flow of current as illustrated in FIG. 5. With capacitor 40 exhibiting a low impedance or approximately a short circuit impedance, the antenna appears to be a generally folded-dipole type antenna in which one of the legs extends in a vertical plane and the other leg extends in a horizontal plane. Since the antenna configurations resulting from low and high frequency operation include a generally vertical element as well as a horizontal element, the antenna exhibits a relatively high gain factor as well as nondirectional reception characteristics.

periorreception characteristics on the lower frequency; therefore, since capacitance element 40 exhibits the characteristic of providing a high impedance to the flow of current when the antenna is operated on the low frequency band, the antenna appears as a generally long-wire type antenna on this band of frequencies thereby providing superior reception on this band. In addition, since U-shaped member 16 extends in a generally vertical manner, the reception characteristics of the antenna are substantially nondirectional in nature. When the antenna is operated on a very high frequency band, for example the frequency-modulated FM band, capacitance element 40 exhibits the characteristic of providingsubstantially a short circuit to the flow of .current and the antenna appears as a generally folded dipole-type antenna which inherently pro- TABLE I APPROXIMATE ELEMENT VALUE OR DIMENSION Capacitor 40 40 picofarad Length of U-shaped 15 inches members Distance between legs 3/16 inch of U-shaped member The invention has been described in connection with the particular preferred embodiment, but is not to be limited to same. Various modifications may be made without departing from the scope and spirit of the present invention as defined by the appended claims.

Thus having described my invention, I claim:

'1. An antenna for receiving radio frequency signals which comprises a dielectric support member, a first and second elongated generally U-shaped conductive member each having one terminal in common and the other terminals located in spaced adjacent relationship to each other, said members operatively affixed along their full length to said 3 support member, the other of said terminals of said members adapted to be coupled to a transmission line, and capacitance means between the other terminal of one of said members and its respective transmission line which capacitance means is characterized by exhibiting an open circuit to the flow of current when the antenna is operated on a predetermined first band of radio frequencies and a short circuit when the antenna is operated on a relative high band of radio frequencies with respect to said first band of frequencies;

2. An antenna according to claim 1 where said capacitance means is operatively affixed to said support member, and where the support member is a windshield for use in a vehicle.

3. An antenna as defined in claim 1 wherein said second U- shaped conductive member includes a first and second leg, said first leg of said second U-shaped conductive member is connected to one of said terminals of said first U-shaped conductive member, said capacitance means is an elongated conductive element which extends substantially parallel to said second leg ofsaid second U-shaped conductive member; and,

said elongated conductive element includes a terminal adapted to be coupled to said other conductor of a said transmission line.

4. An antenna as defined in claim 1 wherein said capacitance means is comprised of a capacitor having one terminal connected to said other terminal of said second U- shaped conductive member and the other terminal of said capacitor being adapted to be coupled to said other conductor ofa said transmission line.

5. An antenna as defined in claim 1 including means carried by said each U-shaped conductive member for attachably securing said conductive member to a dielectric support member.

6. An antenna as defined in claim 5 wherein said securing means is an adhesive means carried by each said U-shaped member for adhesively attaching said U-shaped members to a said dielectric support member.

7. An antenna as defined in claim 6 wherein said U-shaped conductive members are attached to a dielectric sheet; and,

adhesive means is superimposed on said dielectric sheet for adhesively attaching said dielectric to a said dielectric support to thereby provide support for said U-shaped conductive members.

8. An antenna as defined in claim 6 wherein said U-shaped conductive members are completely encased in a dielectric sheet; and,

adhesive means is superimposed on said dielectric sheet for adhesively attaching said dielectric sheet to a said dielectric support to thereby support said U-shaped conductive members.

9. An antenna as defined in claim 6 wherein each said U- shaped conductive member is completely embedded in a flexible transparent dielectric ribbon; and,

adhesive means carried by each said dielectric ribbon for adhesively attaching each said ribbon to a said dielectric support member to thereby provide support for each said U-shaped conductive member.

10. An antenna as defined in claim 9 including a dielectric support member comprised of a sheet of transparent dielectric material; and,

each flexible dielectric ribbon is adhesively bonded to said sheet of transparent dielectric material.

11. An antenna as defined in claim 10 wherein said dielectric support member is an automobile windshield.

12. An antenna as defined in claim 1] wherein one of said U-shaped members is attached to said windshield in a generally vertical plane, and the other of said U-shaped members is attached to said windshield in a generally horizontal plane to thereby provide an antenna which exhibits substantially nondirectional reception characteristics.

Claims (12)

1. An antenna for receiving radio frequency signals which comprises a dielectric support member, a first and second elongated generally U-shaped conductive member each having one terminal in common and the other terminals located in spaced adjacent relationship to each other, said members operatively affixed along their full length to said support member, the other of said terminals of said members adapted to be coupled to a transmission line, and capacitance means betWeen the other terminal of one of said members and its respective transmission line which capacitance means is characterized by exhibiting an open circuit to the flow of current when the antenna is operated on a predetermined first band of radio frequencies and a short circuit when the antenna is operated on a relative high band of radio frequencies with respect to said first band of frequencies.
2. An antenna according to claim 1 where said capacitance means is operatively affixed to said support member, and where the support member is a windshield for use in a vehicle.
3. An antenna as defined in claim 1 wherein said second U-shaped conductive member includes a first and second leg, said first leg of said second U-shaped conductive member is connected to one of said terminals of said first U-shaped conductive member, said capacitance means is an elongated conductive element which extends substantially parallel to said second leg of said second U-shaped conductive member; and, said elongated conductive element includes a terminal adapted to be coupled to said other conductor of a said transmission line.
4. An antenna as defined in claim 1 wherein said capacitance means is comprised of a capacitor having one terminal connected to said other terminal of said second U-shaped conductive member and the other terminal of said capacitor being adapted to be coupled to said other conductor of a said transmission line.
5. An antenna as defined in claim 1 including means carried by each said U-shaped conductive member for attachably securing said conductive member to a dielectric support member.
6. An antenna as defined in claim 5 wherein said securing means is an adhesive means carried by each said U-shaped member for adhesively attaching said U-shaped members to a said dielectric support member.
7. An antenna as defined in claim 6 wherein said U-shaped conductive members are attached to a dielectric sheet; and, adhesive means is superimposed on said dielectric sheet for adhesively attaching said dielectric to a said dielectric support to thereby provide support for said U-shaped conductive members.
8. An antenna as defined in claim 6 wherein said U-shaped conductive members are completely encased in a dielectric sheet; and, adhesive means is superimposed on said dielectric sheet for adhesively attaching said dielectric sheet to a said dielectric support to thereby support said U-shaped conductive members.
9. An antenna as defined in claim 6 wherein each said U-shaped conductive member is completely embedded in a flexible transparent dielectric ribbon; and, adhesive means carried by each said dielectric ribbon for adhesively attaching each said ribbon to a said dielectric support member to thereby provide support for each said U-shaped conductive member.
10. An antenna as defined in claim 9 including a dielectric support member comprised of a sheet of transparent dielectric material; and, each flexible dielectric ribbon is adhesively bonded to said sheet of transparent dielectric material.
11. An antenna as defined in claim 10 wherein said dielectric support member is an automobile windshield.
12. An antenna as defined in claim 11 wherein one of said U-shaped members is attached to said windshield in a generally vertical plane, and the other of said U-shaped members is attached to said windshield in a generally horizontal plane to thereby provide an antenna which exhibits substantially nondirectional reception characteristics.
US3599214A 1969-03-10 1969-03-10 Automobile windshield antenna Expired - Lifetime US3599214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US80551769 true 1969-03-10 1969-03-10

Publications (1)

Publication Number Publication Date
US3599214A true US3599214A (en) 1971-08-10

Family

ID=25191776

Family Applications (1)

Application Number Title Priority Date Filing Date
US3599214A Expired - Lifetime US3599214A (en) 1969-03-10 1969-03-10 Automobile windshield antenna

Country Status (1)

Country Link
US (1) US3599214A (en)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771159A (en) * 1970-03-04 1973-11-06 Clarion Co Ltd Windshield antenna for automobile
US3810180A (en) * 1970-05-15 1974-05-07 Saint Gobain Motor vehicle windshield with incorporated antenna
US3945014A (en) * 1970-03-21 1976-03-16 Saint-Gobain Industries Windshield antenna with coupling network in the leadin
FR2286560A1 (en) * 1974-09-24 1976-04-23 Radiotechnique Compelec RF coupling device for car radio - has loop formed on window and collecting parasitic currents from car body
US4527164A (en) * 1981-09-15 1985-07-02 Societa Italiana Vetro-Siv-S.P.A. Multiband aerial, especially suitable for a motor vehicle window
US4873532A (en) * 1987-10-07 1989-10-10 Nippon Sheet Glass Co., Ltd. Antenna apparatus for a vehicle
US4897643A (en) * 1986-08-11 1990-01-30 Mazda Motor Corporation Vehicular electronic equipment with door lock and side window antenna
EP0355424A2 (en) * 1988-07-25 1990-02-28 Asahi Glass Company Ltd. Glass antenna device for an automobile
EP0612119A1 (en) * 1993-02-17 1994-08-24 Saint-Gobain Vitrage International Car glazing with a printed conductor structure
US5422650A (en) * 1992-08-28 1995-06-06 U.S. Philips Corporation Loop antenna with series resonant circuit and parallel reactance providing dual resonant frequencies
US5650791A (en) * 1995-09-05 1997-07-22 Ford Motor Company Multiband antenna for automotive vehicle
US5668557A (en) * 1995-02-03 1997-09-16 Murata Manufacturing Co., Ltd. Surface-mount antenna and communication device using same
US5712645A (en) * 1995-10-06 1998-01-27 Minnesota Mining And Manufacturing Company Antenna adapted for placement in the window of a vehicle
US5923298A (en) * 1997-04-30 1999-07-13 Ford Motor Company Multiband reception antenna for terrestrial digital audio broadcast bands
US5966098A (en) * 1996-09-18 1999-10-12 Research In Motion Limited Antenna system for an RF data communications device
US5999134A (en) * 1996-12-19 1999-12-07 Ppg Industries Ohio, Inc. Glass antenna system with an impedance matching network
US6198447B1 (en) * 1992-11-10 2001-03-06 Saint-Gobain Vitrage International Pane antenna for automobiles
US6275157B1 (en) 1999-05-27 2001-08-14 Intermec Ip Corp. Embedded RFID transponder in vehicle window glass
US20020044093A1 (en) * 2000-04-05 2002-04-18 Geyi Wen Electrically connected multi-feed antenna system
US20020140615A1 (en) * 1999-09-20 2002-10-03 Carles Puente Baliarda Multilevel antennae
US20030112190A1 (en) * 2000-04-19 2003-06-19 Baliarda Carles Puente Advanced multilevel antenna for motor vehicles
US6664930B2 (en) 2001-04-12 2003-12-16 Research In Motion Limited Multiple-element antenna
US20040075613A1 (en) * 2002-06-21 2004-04-22 Perry Jarmuszewski Multiple-element antenna with parasitic coupler
US20040119644A1 (en) * 2000-10-26 2004-06-24 Carles Puente-Baliarda Antenna system for a motor vehicle
US20040145526A1 (en) * 2001-04-16 2004-07-29 Carles Puente Baliarda Dual-band dual-polarized antenna array
US6791500B2 (en) 2002-12-12 2004-09-14 Research In Motion Limited Antenna with near-field radiation control
US20040210482A1 (en) * 2003-04-16 2004-10-21 Tetsuhiko Keneaki Gift certificate, gift certificate, issuing system, gift certificate using system
US6812897B2 (en) 2002-12-17 2004-11-02 Research In Motion Limited Dual mode antenna system for radio transceiver
US20040227680A1 (en) * 2003-05-14 2004-11-18 Geyi Wen Antenna with multiple-band patch and slot structures
US20040257285A1 (en) * 2001-10-16 2004-12-23 Quintero Lllera Ramiro Multiband antenna
US20050001769A1 (en) * 2003-06-12 2005-01-06 Yihong Qi Multiple-element antenna with floating antenna element
US20050017906A1 (en) * 2003-07-24 2005-01-27 Man Ying Tong Floating conductor pad for antenna performance stabilization and noise reduction
US6870507B2 (en) 2001-02-07 2005-03-22 Fractus S.A. Miniature broadband ring-like microstrip patch antenna
US6876320B2 (en) 2001-11-30 2005-04-05 Fractus, S.A. Anti-radar space-filling and/or multilevel chaff dispersers
WO2005045987A2 (en) * 2003-11-04 2005-05-19 Saint-Gobain Glass France Antenna arrangement and window fitted with this antenna arrangement
US20050146481A1 (en) * 1999-10-26 2005-07-07 Baliarda Carles P. Interlaced multiband antenna arrays
US20050190106A1 (en) * 2001-10-16 2005-09-01 Jaume Anguera Pros Multifrequency microstrip patch antenna with parasitic coupled elements
US20050195112A1 (en) * 2000-01-19 2005-09-08 Baliarda Carles P. Space-filling miniature antennas
US20060077101A1 (en) * 2001-10-16 2006-04-13 Carles Puente Baliarda Loaded antenna
US20070097001A1 (en) * 2004-05-28 2007-05-03 Denso Corporation Mobile antenna mounted on a vehicle body
US7245196B1 (en) 2000-01-19 2007-07-17 Fractus, S.A. Fractal and space-filling transmission lines, resonators, filters and passive network elements
US20070257846A1 (en) * 2004-05-13 2007-11-08 Geyi Wen Antenna with multiple-band patch and slot structures
US20080092364A1 (en) * 2003-09-16 2008-04-24 Niitek, Inc. Method for producing a broadband antenna
US20090128431A1 (en) * 2007-11-20 2009-05-21 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Windshield antenna and/or vehicle incorporating the same
US20090316379A1 (en) * 2007-01-25 2009-12-24 Nippon Sheet Glass Company, Limited Terminal Sealing Apparatus
US20110169705A1 (en) * 2010-01-13 2011-07-14 Origin GPS Rigid elements embedded in a motor vehicle windshield
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800577A (en) * 1955-08-25 1958-08-27 Shardlow Electric Wires Ltd Improvements in or relating to aerials
US3414902A (en) * 1965-12-06 1968-12-03 Ppg Industries Inc Laminated windshield with radio antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800577A (en) * 1955-08-25 1958-08-27 Shardlow Electric Wires Ltd Improvements in or relating to aerials
US3414902A (en) * 1965-12-06 1968-12-03 Ppg Industries Inc Laminated windshield with radio antenna

Cited By (143)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771159A (en) * 1970-03-04 1973-11-06 Clarion Co Ltd Windshield antenna for automobile
US3945014A (en) * 1970-03-21 1976-03-16 Saint-Gobain Industries Windshield antenna with coupling network in the leadin
US3810180A (en) * 1970-05-15 1974-05-07 Saint Gobain Motor vehicle windshield with incorporated antenna
FR2286560A1 (en) * 1974-09-24 1976-04-23 Radiotechnique Compelec RF coupling device for car radio - has loop formed on window and collecting parasitic currents from car body
US4527164A (en) * 1981-09-15 1985-07-02 Societa Italiana Vetro-Siv-S.P.A. Multiband aerial, especially suitable for a motor vehicle window
US4897643A (en) * 1986-08-11 1990-01-30 Mazda Motor Corporation Vehicular electronic equipment with door lock and side window antenna
US4873532A (en) * 1987-10-07 1989-10-10 Nippon Sheet Glass Co., Ltd. Antenna apparatus for a vehicle
US4992801A (en) * 1988-07-25 1991-02-12 Asahi Glass Company Ltd. Glass antenna device for an automobile
EP0355424A2 (en) * 1988-07-25 1990-02-28 Asahi Glass Company Ltd. Glass antenna device for an automobile
EP0355424A3 (en) * 1988-07-25 1990-03-14 Asahi Glass Company Ltd. Glass antenna device for an automobile
US5422650A (en) * 1992-08-28 1995-06-06 U.S. Philips Corporation Loop antenna with series resonant circuit and parallel reactance providing dual resonant frequencies
US6198447B1 (en) * 1992-11-10 2001-03-06 Saint-Gobain Vitrage International Pane antenna for automobiles
EP0612119A1 (en) * 1993-02-17 1994-08-24 Saint-Gobain Vitrage International Car glazing with a printed conductor structure
US5668557A (en) * 1995-02-03 1997-09-16 Murata Manufacturing Co., Ltd. Surface-mount antenna and communication device using same
US5650791A (en) * 1995-09-05 1997-07-22 Ford Motor Company Multiband antenna for automotive vehicle
US5712645A (en) * 1995-10-06 1998-01-27 Minnesota Mining And Manufacturing Company Antenna adapted for placement in the window of a vehicle
US5966098A (en) * 1996-09-18 1999-10-12 Research In Motion Limited Antenna system for an RF data communications device
US5999134A (en) * 1996-12-19 1999-12-07 Ppg Industries Ohio, Inc. Glass antenna system with an impedance matching network
US5923298A (en) * 1997-04-30 1999-07-13 Ford Motor Company Multiband reception antenna for terrestrial digital audio broadcast bands
US6275157B1 (en) 1999-05-27 2001-08-14 Intermec Ip Corp. Embedded RFID transponder in vehicle window glass
US20110163923A1 (en) * 1999-09-20 2011-07-07 Fractus, S.A. Multilevel antennae
US20020140615A1 (en) * 1999-09-20 2002-10-03 Carles Puente Baliarda Multilevel antennae
US9362617B2 (en) 1999-09-20 2016-06-07 Fractus, S.A. Multilevel antennae
US20080042909A1 (en) * 1999-09-20 2008-02-21 Fractus, S.A. Multilevel antennae
US9240632B2 (en) 1999-09-20 2016-01-19 Fractus, S.A. Multilevel antennae
US9054421B2 (en) 1999-09-20 2015-06-09 Fractus, S.A. Multilevel antennae
US9000985B2 (en) 1999-09-20 2015-04-07 Fractus, S.A. Multilevel antennae
US8976069B2 (en) 1999-09-20 2015-03-10 Fractus, S.A. Multilevel antennae
US8941541B2 (en) 1999-09-20 2015-01-27 Fractus, S.A. Multilevel antennae
US7394432B2 (en) 1999-09-20 2008-07-01 Fractus, S.A. Multilevel antenna
US7397431B2 (en) 1999-09-20 2008-07-08 Fractus, S.A. Multilevel antennae
US7505007B2 (en) 1999-09-20 2009-03-17 Fractus, S.A. Multi-level antennae
US9761934B2 (en) 1999-09-20 2017-09-12 Fractus, S.A. Multilevel antennae
US8330659B2 (en) 1999-09-20 2012-12-11 Fractus, S.A. Multilevel antennae
US7123208B2 (en) 1999-09-20 2006-10-17 Fractus, S.A. Multilevel antennae
US7528782B2 (en) 1999-09-20 2009-05-05 Fractus, S.A. Multilevel antennae
US20070194992A1 (en) * 1999-09-20 2007-08-23 Fractus, S.A. Multi-level antennae
US8154462B2 (en) 1999-09-20 2012-04-10 Fractus, S.A. Multilevel antennae
US8154463B2 (en) 1999-09-20 2012-04-10 Fractus, S.A. Multilevel antennae
US8009111B2 (en) 1999-09-20 2011-08-30 Fractus, S.A. Multilevel antennae
US20110175777A1 (en) * 1999-09-20 2011-07-21 Fractus, S.A. Multilevel antennae
US7015868B2 (en) 1999-09-20 2006-03-21 Fractus, S.A. Multilevel Antennae
US20050146481A1 (en) * 1999-10-26 2005-07-07 Baliarda Carles P. Interlaced multiband antenna arrays
US7250918B2 (en) 1999-10-26 2007-07-31 Fractus, S.A. Interlaced multiband antenna arrays
US6937191B2 (en) 1999-10-26 2005-08-30 Fractus, S.A. Interlaced multiband antenna arrays
US8896493B2 (en) 1999-10-26 2014-11-25 Fractus, S.A. Interlaced multiband antenna arrays
US9905940B2 (en) 1999-10-26 2018-02-27 Fractus, S.A. Interlaced multiband antenna arrays
US20090267863A1 (en) * 1999-10-26 2009-10-29 Carles Puente Baliarda Interlaced multiband antenna arrays
US7932870B2 (en) 1999-10-26 2011-04-26 Fractus, S.A. Interlaced multiband antenna arrays
US7557768B2 (en) 1999-10-26 2009-07-07 Fractus, S.A. Interlaced multiband antenna arrays
US8228256B2 (en) 1999-10-26 2012-07-24 Fractus, S.A. Interlaced multiband antenna arrays
US20050264453A1 (en) * 2000-01-19 2005-12-01 Baliarda Carles P Space-filling miniature antennas
US20050231427A1 (en) * 2000-01-19 2005-10-20 Carles Puente Baliarda Space-filling miniature antennas
US7202822B2 (en) 2000-01-19 2007-04-10 Fractus, S.A. Space-filling miniature antennas
US8212726B2 (en) 2000-01-19 2012-07-03 Fractus, Sa Space-filling miniature antennas
US20090303134A1 (en) * 2000-01-19 2009-12-10 Fractus, S.A. Space-filling miniature antennas
US20050195112A1 (en) * 2000-01-19 2005-09-08 Baliarda Carles P. Space-filling miniature antennas
US7148850B2 (en) 2000-01-19 2006-12-12 Fractus, S.A. Space-filling miniature antennas
US7554490B2 (en) 2000-01-19 2009-06-30 Fractus, S.A. Space-filling miniature antennas
US7164386B2 (en) 2000-01-19 2007-01-16 Fractus, S.A. Space-filling miniature antennas
US7538641B2 (en) 2000-01-19 2009-05-26 Fractus, S.A. Fractal and space-filling transmission lines, resonators, filters and passive network elements
US20090109101A1 (en) * 2000-01-19 2009-04-30 Fractus, S.A. Space-filling miniature antennas
US8471772B2 (en) 2000-01-19 2013-06-25 Fractus, S.A. Space-filling miniature antennas
US20110181481A1 (en) * 2000-01-19 2011-07-28 Fractus, S.A. Space-filling miniature antennas
US8610627B2 (en) 2000-01-19 2013-12-17 Fractus, S.A. Space-filling miniature antennas
US8207893B2 (en) 2000-01-19 2012-06-26 Fractus, S.A. Space-filling miniature antennas
US20070152886A1 (en) * 2000-01-19 2007-07-05 Fractus, S.A. Space-filling miniature antennas
US7245196B1 (en) 2000-01-19 2007-07-17 Fractus, S.A. Fractal and space-filling transmission lines, resonators, filters and passive network elements
US20110177839A1 (en) * 2000-01-19 2011-07-21 Fractus, S.A. Space-filling miniature antennas
US9331382B2 (en) 2000-01-19 2016-05-03 Fractus, S.A. Space-filling miniature antennas
US20080011509A1 (en) * 2000-01-19 2008-01-17 Baliarda Carles P Fractal and space-filling transmission lines, resonators, filters and passive network elements
US20110181478A1 (en) * 2000-01-19 2011-07-28 Fractus, S.A. Space-filling miniature antennas
US8558741B2 (en) 2000-01-19 2013-10-15 Fractus, S.A. Space-filling miniature antennas
US6781548B2 (en) 2000-04-05 2004-08-24 Research In Motion Limited Electrically connected multi-feed antenna system
US20020044093A1 (en) * 2000-04-05 2002-04-18 Geyi Wen Electrically connected multi-feed antenna system
US20030112190A1 (en) * 2000-04-19 2003-06-19 Baliarda Carles Puente Advanced multilevel antenna for motor vehicles
US6809692B2 (en) 2000-04-19 2004-10-26 Advanced Automotive Antennas, S.L. Advanced multilevel antenna for motor vehicles
US20040119644A1 (en) * 2000-10-26 2004-06-24 Carles Puente-Baliarda Antenna system for a motor vehicle
US7511675B2 (en) 2000-10-26 2009-03-31 Advanced Automotive Antennas, S.L. Antenna system for a motor vehicle
US6870507B2 (en) 2001-02-07 2005-03-22 Fractus S.A. Miniature broadband ring-like microstrip patch antenna
US6664930B2 (en) 2001-04-12 2003-12-16 Research In Motion Limited Multiple-element antenna
US20040004574A1 (en) * 2001-04-12 2004-01-08 Geyi Wen Multiple-element antenna
US6950071B2 (en) 2001-04-12 2005-09-27 Research In Motion Limited Multiple-element antenna
US20040145526A1 (en) * 2001-04-16 2004-07-29 Carles Puente Baliarda Dual-band dual-polarized antenna array
US6937206B2 (en) 2001-04-16 2005-08-30 Fractus, S.A. Dual-band dual-polarized antenna array
US8723742B2 (en) 2001-10-16 2014-05-13 Fractus, S.A. Multiband antenna
US7215287B2 (en) 2001-10-16 2007-05-08 Fractus S.A. Multiband antenna
US8228245B2 (en) 2001-10-16 2012-07-24 Fractus, S.A. Multiband antenna
US20070132658A1 (en) * 2001-10-16 2007-06-14 Ramiro Quintero Illera Multiband antenna
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
US7439923B2 (en) 2001-10-16 2008-10-21 Fractus, S.A. Multiband antenna
US7312762B2 (en) 2001-10-16 2007-12-25 Fractus, S.A. Loaded antenna
US7541997B2 (en) 2001-10-16 2009-06-02 Fractus, S.A. Loaded antenna
US20050190106A1 (en) * 2001-10-16 2005-09-01 Jaume Anguera Pros Multifrequency microstrip patch antenna with parasitic coupled elements
US20060077101A1 (en) * 2001-10-16 2006-04-13 Carles Puente Baliarda Loaded antenna
US7920097B2 (en) 2001-10-16 2011-04-05 Fractus, S.A. Multiband antenna
US20040257285A1 (en) * 2001-10-16 2004-12-23 Quintero Lllera Ramiro Multiband antenna
US7202818B2 (en) 2001-10-16 2007-04-10 Fractus, S.A. Multifrequency microstrip patch antenna with parasitic coupled elements
US6876320B2 (en) 2001-11-30 2005-04-05 Fractus, S.A. Anti-radar space-filling and/or multilevel chaff dispersers
US7183984B2 (en) 2002-06-21 2007-02-27 Research In Motion Limited Multiple-element antenna with parasitic coupler
US20040075613A1 (en) * 2002-06-21 2004-04-22 Perry Jarmuszewski Multiple-element antenna with parasitic coupler
US6891506B2 (en) 2002-06-21 2005-05-10 Research In Motion Limited Multiple-element antenna with parasitic coupler
US20050200537A1 (en) * 2002-06-21 2005-09-15 Research In Motion Limited Multiple-element antenna with parasitic coupler
US6791500B2 (en) 2002-12-12 2004-09-14 Research In Motion Limited Antenna with near-field radiation control
US8525743B2 (en) 2002-12-12 2013-09-03 Blackberry Limited Antenna with near-field radiation control
US7541991B2 (en) 2002-12-12 2009-06-02 Research In Motion Limited Antenna with near-field radiation control
US7961154B2 (en) 2002-12-12 2011-06-14 Research In Motion Limited Antenna with near-field radiation control
US8223078B2 (en) 2002-12-12 2012-07-17 Research In Motion Limited Antenna with near-field radiation control
US8125397B2 (en) 2002-12-12 2012-02-28 Research In Motion Limited Antenna with near-field radiation control
US20050040996A1 (en) * 2002-12-12 2005-02-24 Yihong Qi Antenna with near-field radiation control
US7253775B2 (en) 2002-12-12 2007-08-07 Research In Motion Limited Antenna with near-field radiation control
US8339323B2 (en) 2002-12-12 2012-12-25 Research In Motion Limited Antenna with near-field radiation control
US6812897B2 (en) 2002-12-17 2004-11-02 Research In Motion Limited Dual mode antenna system for radio transceiver
US20040210482A1 (en) * 2003-04-16 2004-10-21 Tetsuhiko Keneaki Gift certificate, gift certificate, issuing system, gift certificate using system
US7023387B2 (en) 2003-05-14 2006-04-04 Research In Motion Limited Antenna with multiple-band patch and slot structures
US20040227680A1 (en) * 2003-05-14 2004-11-18 Geyi Wen Antenna with multiple-band patch and slot structures
US7256741B2 (en) 2003-05-14 2007-08-14 Research In Motion Limited Antenna with multiple-band patch and slot structures
US7148846B2 (en) 2003-06-12 2006-12-12 Research In Motion Limited Multiple-element antenna with floating antenna element
US20080246668A1 (en) * 2003-06-12 2008-10-09 Yihong Qi Multiple-element antenna with floating antenna element
US7400300B2 (en) 2003-06-12 2008-07-15 Research In Motion Limited Multiple-element antenna with floating antenna element
US20050001769A1 (en) * 2003-06-12 2005-01-06 Yihong Qi Multiple-element antenna with floating antenna element
US8018386B2 (en) 2003-06-12 2011-09-13 Research In Motion Limited Multiple-element antenna with floating antenna element
US20070176835A1 (en) * 2003-06-12 2007-08-02 Yihong Qi Multiple-element antenna with floating antenna element
US20050017906A1 (en) * 2003-07-24 2005-01-27 Man Ying Tong Floating conductor pad for antenna performance stabilization and noise reduction
US6980173B2 (en) 2003-07-24 2005-12-27 Research In Motion Limited Floating conductor pad for antenna performance stabilization and noise reduction
US20080092364A1 (en) * 2003-09-16 2008-04-24 Niitek, Inc. Method for producing a broadband antenna
US7788793B2 (en) * 2003-09-16 2010-09-07 Niitek, Inc. Method for producing a broadband antenna
WO2005045987A2 (en) * 2003-11-04 2005-05-19 Saint-Gobain Glass France Antenna arrangement and window fitted with this antenna arrangement
WO2005045987A3 (en) * 2003-11-04 2005-07-14 Detlev Duerkop Antenna arrangement and window fitted with this antenna arrangement
US7903042B2 (en) 2003-11-04 2011-03-08 Saint-Gobain Glass France Antenna arrangement and window fitted with this antenna arrangement
US20070257846A1 (en) * 2004-05-13 2007-11-08 Geyi Wen Antenna with multiple-band patch and slot structures
US7369089B2 (en) 2004-05-13 2008-05-06 Research In Motion Limited Antenna with multiple-band patch and slot structures
US20070097001A1 (en) * 2004-05-28 2007-05-03 Denso Corporation Mobile antenna mounted on a vehicle body
US7446719B2 (en) * 2004-05-28 2008-11-04 Denso Corporation Mobile antenna mounted on a vehicle body
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9899727B2 (en) 2006-07-18 2018-02-20 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9099773B2 (en) 2006-07-18 2015-08-04 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US20090316379A1 (en) * 2007-01-25 2009-12-24 Nippon Sheet Glass Company, Limited Terminal Sealing Apparatus
US8310843B2 (en) * 2007-01-25 2012-11-13 Nippon Sheet Glass Company, Limited Terminal sealing apparatus
US20090128431A1 (en) * 2007-11-20 2009-05-21 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Windshield antenna and/or vehicle incorporating the same
US7847745B2 (en) * 2007-11-20 2010-12-07 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Windshield antenna and/or vehicle incorporating the same
US20110169705A1 (en) * 2010-01-13 2011-07-14 Origin GPS Rigid elements embedded in a motor vehicle windshield
US8810462B2 (en) 2010-01-13 2014-08-19 Origin Gps Ltd. Rigid elements embedded in a motor vehicle windshield

Similar Documents

Publication Publication Date Title
US3487414A (en) Omnidirectional antenna
US4527164A (en) Multiband aerial, especially suitable for a motor vehicle window
US4873527A (en) Antenna system for a wrist carried paging receiver
US5402134A (en) Flat plate antenna module
US4868576A (en) Extendable antenna for portable cellular telephones with ground radiator
US4907006A (en) Wide band antenna for mobile communications
US20040119644A1 (en) Antenna system for a motor vehicle
US5231412A (en) Sleeved monopole antenna
US5012255A (en) Combination antenna and windshield heater
US4675687A (en) AM-FM cellular telephone multiband antenna for motor vehicle
US4003056A (en) Windshield antenna system with resonant element and cooperating resonant conductive edge
US5255002A (en) Antenna for vehicle window
US5621422A (en) Spiral-mode microstrip (SMM) antennas and associated methods for exciting, extracting and multiplexing the various spiral modes
US5926141A (en) Windowpane antenna with transparent conductive layer
US5198826A (en) Wide-band loop antenna with outer and inner loop conductors
US2481978A (en) Automobile radio coupler and method of communication
US4707700A (en) Vehicle roof mounted slot antenna with lossy conductive material for low VSWR
US4727377A (en) Window antenna for a vehicle with dual feed points
US4764773A (en) Mobile antenna and through-the-glass impedance matched feed system
US5973648A (en) Radio antenna arrangement with a patch antenna for mounting on or adjacent to the windshield of a vehicle
US4661821A (en) Vandalism-resistant UHF antenna
US4847629A (en) Retractable cellular antenna
US3896448A (en) Instrument panel radio antenna
US2996713A (en) Radial waveguide antenna
US4794319A (en) Glass mounted antenna