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EP1661202A1 - Structure d'antenne pour l'ecoute de radiodiffusions par une station mobile et station mobile - Google Patents

Structure d'antenne pour l'ecoute de radiodiffusions par une station mobile et station mobile

Info

Publication number
EP1661202A1
EP1661202A1 EP04767022A EP04767022A EP1661202A1 EP 1661202 A1 EP1661202 A1 EP 1661202A1 EP 04767022 A EP04767022 A EP 04767022A EP 04767022 A EP04767022 A EP 04767022A EP 1661202 A1 EP1661202 A1 EP 1661202A1
Authority
EP
European Patent Office
Prior art keywords
antenna
mobile station
antenna element
structure according
component
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.)
Withdrawn
Application number
EP04767022A
Other languages
German (de)
English (en)
Inventor
Pekka Kinnunen
Ilkka Niemelä
Jyrki Mikkola
Petteri Annamaa
Pekka PÖYTÄKANGAS
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.)
Pulse Finland Oy
Original Assignee
Filtronic LK Oy
Pulse Finland Oy
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
Application filed by Filtronic LK Oy, Pulse Finland Oy filed Critical Filtronic LK Oy
Publication of EP1661202A1 publication Critical patent/EP1661202A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the invention relates to an antenna structure accompanied to a mobile station for listening to radio broadcasts by the mobile station.
  • the invention also relates to a mobile station which can be used for listening to broadcast radio transmissions.
  • Different models of mobile stations taken together have a large number of properties that do not belong to the primary properties required of a terminal device of a mobile communications network.
  • One such property is the capability to receive radio broadcast. In general, this means listening to transmissions from stations that operate in the VHF (Very High Frequency) range and use the FM (Frequency Modulation) technique. In that case, the keypad and audio part of the mobile station can be utilized, but, the RF (Radio Frequency) and IF (Intermediate Frequency) parts according to the transmission standard in question have to be added to the device.
  • RF Radio Frequency
  • IF Intermediate Frequency
  • Fig. 1 shows a known arrangement for listening to radio broadcasts by a mobile station for the part of the antenna.
  • a mobile station 100 and its accessory HS The accessory includes a microphone M and earphones E, and it is intended to be placed on the user's head for freeing his hands during the connection.
  • the accessory HS is coupled to a connector in the mobile station with a cord 110, which contains the conductors required for the transfer of audio signals.
  • One of these audio conductors is capacitively coupled to the FM receiver in the phone 100 and so at the same time functions as its antenna.
  • the principle is the same that has been used for a long time in pocket radios that are listened to with earphones.
  • the antenna is a monopole antenna, in which the receiving element preferably has the length of a quarter wave. Such an antenna conductor can naturally also be used independently, without the headset device.
  • the drawback of an external monopole antenna is its inconvenience caused by its length.
  • An objective of the invention is to implement an antenna integrated in a mobile station and intended for the receiving of radio broadcasts in a new and advantageous manner.
  • the antenna structure according to the invention is characterized in what is set forth in the independent claim 1.
  • the mobile station according to the invention is characterized in what is set forth in the independent claim 10.
  • the FM antenna is located within the mobile station.
  • the conductive antenna element rests on a piece of dielectric material within the casing of the mobile station. Together with the antenna element, said piece can form a separate antenna component to be fastened to the mobile station or it can be a part that belongs to the structure of the mobile station in any case.
  • the antenna element is preferably a relatively dense meander conductor. There are preferably two antenna elements to form a dipole structure.
  • the invention has the advantage that the receiving of radio broadcasts by a mobile station does not require an external antenna with its connections. Another advantage is the fact that the costs of manufacture and installation of an antenna according to the invention are relatively low.
  • Fig. 1 shows an example of a known antenna structure for receiving radio broadcasts by a mobile station
  • Fig. 2a shows an example of an antenna structure in a mobile station according to the invention as a layout drawing
  • Fig. 2b shows the antenna structure according to Fig. 2a in more detail as a cross-section of the mobile station
  • Figs 3a, b show examples of an antenna component according to the invention
  • Fig. 4 shows another example of an antenna structure according to the invention
  • Fig. 5 shows a third example of an antenna structure according to the invention
  • Fig. 6 shows a fourth example of an antenna structure according to the invention
  • Fig. 7a shows a fifth example of an antenna structure according to the invention as a layout drawing
  • Fig. 7b shows the antenna structure according to Fig. 7a in more detail as a longitudinal section of the mobile station
  • Fig. 8 shows an example of an antenna component which is suitable for the structure shown by Figures 7a, b, and
  • Fig. 9 shows another example of an antenna component which is suitable for the structure shown by Figures 7a, b.
  • Fig. 2a shows a layout drawing of an exemplary antenna structure according to the invention in a mobile station, which is a brick-shaped phone in this example.
  • a substantial part of the antenna structure is formed by two strip-like antenna components, which are located within the casing of the phone 200 beside its side walls.
  • the first antenna component 210 is on the left side of the keypad as viewed from the front of the phone, and the second antenna component 220 is on the right side of the keypad.
  • the antenna components could naturally also be upper, e.g. partly at the display.
  • Fig. 2b presents an enlarged, simplified cross-section of the mobile phone 200 in Fig. 2a. It shows the casing 202 of the phone, the circuit board 203 and the keypad 204. In addition, the side walls 201 of the plastic frame of the phone are shown of the basic structure. The antenna components 210, 220 have been fastened to the outer surfaces of the side walls of the frame in the narrow empty space between the frame and the cover. The fastening means is based on some adhesive material spread on one side of the antenna component, for example.
  • FIG. 3a shows an antenna component 310, which includes an elongated, rectangular dielectric plate 315 and an antenna element 311.
  • the antenna element is a thin strip conductor on the surface of a dielectric plate.
  • the conductor 311 is meander-shaped in a way that it comprises close together portions that have almost the same length as the short side of the dielectric plate and are parallel with it.
  • Fig. 3b shows an antenna component 320, which includes an elongated, rectangular dielectric plate 325 and an antenna element 321 on its surface.
  • the antenna element is a thin meander-shaped conductor which comprises close together portions that have almost the same length as the long side of the dielectric plate 325 and are parallel with it. Both the antenna element 311 and element 321 have the electric length of about a quarter wave at the frequency of 100 MHz, i.e. approximately 75 cm.
  • one end of the meander conductor is connected to the FM receiver in the mobile station.
  • said end of the conductor has a through hole, for example, to which the end of the conductor going to the FM receiver is soldered.
  • Such a conductor end coming through the frame of the mobile station also functions as a positioning pin for the antenna component.
  • the dielectric plate 315, 325 of the antenna component is made of flexible circuit board material or plastic film, for example.
  • Fig. 4 shows another example of the antenna structure according to the invention.
  • half of the casing 402 of a mobile station The casing half is a united piece with an even bottom and side walls so that the structure resembles an open, shallow box.
  • the box may have openings required by the structure and function of the mobile station, the likes of which have not been drawn in Fig. 4.
  • a substantial part of the antenna structure is formed by two strip-like antenna components 410 and 420, which are located side by side on the inner surface of one long side wall of the cover 402.
  • the casing 402 can be made of plastic, in which case the antenna components are of flexible circuit board, for example.
  • the casing can also be metal, such as extruded aluminium.
  • the dielectric part of the antenna components 410 and 420 is of special plastic, on the surface of which the antenna element has been processed using a technique such as MID (Molded Interconnect Devices).
  • Fig. 5 shows a third example of the antenna structure according to the invention.
  • the material of the casing 502 is plastic which is suitable for the use of the MID technique.
  • the antenna element 511 has been processed directly onto the inner surface of the casing 502.
  • the structure can also include another similar antenna element to form a dipole antenna.
  • Fig. 6 shows a fourth example of the antenna structure according to the invention.
  • a mobile phone 600 includes, among other things, the casing 602, frame 601 and circuit board 603.
  • the antenna component 610 has been fastened to a metallic shielding cover 608 of the electronic circuits on the circuit board 603.
  • the conductive antenna element may have been processed by the MID technique onto the surface of the dielectric part of the antenna component 610.
  • FIGs 7a, b show a fifth example of the antenna structure in a mobile station according to the invention, as a layout drawing.
  • Fig. 7b there is a simplified, longitudinal section of the mobile station 700 of Fig. 7a.
  • the antenna component 710 has been fastened on the surface of the battery in the empty space between it and the cover 702. If there is some ferromagnetic material on the battery wall, the fastening can be magnetic in a way that there is a thin layer of magnetic material on the surface of the antenna component on the battery side.
  • Fig. 8 shows enlarged an example of an antenna component which is suitable for the structure shown by Figures 7a, b.
  • the antenna component 810 includes a rectangular dielectric plate 815, a first 811 and a second 812 antenna element and a magnetic plate 816.
  • the antenna elements are strip conductors on the upper surface of the dielectric plate, or as installed, on the surface that is on the side of the outer surface of the mobile station. They are meander-shaped in a way that they comprise close together portions that are parallel with the shorter side of the dielectric plate and almost of the same length.
  • the antenna elements are symmetri ⁇
  • a dipole antenna is formed with the first and the second antenna element as its branches.
  • the antenna component 810 adheres to the wall containing ferromagnetic material and stays there without any other fastening arrangement.
  • ferromagnetic materials have a lengthening effect on the electric lengths of the antenna elements, which means a smaller size for an antenna of a certain frequency range.
  • Fig. 9 shows another example of an antenna component which is suitable for the structure shown by Figures 7a, b.
  • the antenna component has been installed on the upper surface of a battery 960 either using the magnetic joint mentioned above or some other fastening technique.
  • the whole antenna is a monopole antenna, because it comprises only one conductive antenna element 911.
  • This is a strip conductor on the surface of a dielectric plate 915.
  • the conductor 911 is meander-shaped in a way that it comprises close together portions that are parallel with the longer side of the dielectric plate and almost of the same length.
  • Another difference as compared to the structure of Fig. 8 is the way in which the antenna element is connected to the FM receiver.
  • Fig. 9 shows another example of an antenna component which is suitable for the structure shown by Figures 7a, b.
  • the antenna component has been installed on the upper surface of a battery 960 either using the magnetic joint mentioned above or some other fastening technique.
  • the whole antenna is a monopole antenna, because it comprises only
  • the transmission line between the antenna and the receiver is connected e.g. by soldering to the adjacent conductive pads at the ends of the antenna elements.
  • a small extension in the flexible dielectric plate 915 extending to the end surface of the battery 960 where the feeding contacts 961 of the mobile station are.
  • the antenna element 911 continues along said extension to the antenna contact 913 at the end of the battery.
  • the connector, through which the battery is connected to the mobile station, also has a contact pin at the antenna contact 913, connected to the FM receiver by a transmission conductor.
  • the antenna structure according to the invention can differ from the examples described in its details.
  • the element that receives radio radiation need not be regularly meander-shaped, or not meander-shaped at all, and the shapes and fastening places of the antenna components can vary.
  • the inventive idea can be applied in different ways within the scope defined by the independent claim 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Cette invention se rapporte à une structure d'antenne associée à une station mobile pour l'écoute de radiodiffusions par une station mobile, et à une station mobile (200). L'antenne FM est localisée à l'intérieur de la station mobile. L'élément d'antenne conducteur (211, 221) et placé sur une partie en matériau diélectrique à l'intérieur du boîtier de la station mobile. Cette partie peut former avec l'élément d'antenne un composant d'antenne séparé (210, 220) conçu pour être fixé à la station mobile, ou alors il peut appartenir à la structure de la station mobile. Cet élément d'antenne peut être par exemple un conducteur à réseau méandriforme relativement dense permettant de réduire la taille de l'antenne. On prévoit de préférence deux éléments d'antenne pour former une structure bipolaire.
EP04767022A 2003-09-05 2004-09-02 Structure d'antenne pour l'ecoute de radiodiffusions par une station mobile et station mobile Withdrawn EP1661202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20031262A FI20031262A7 (fi) 2003-09-05 2003-09-05 Antennirakenne yleisten radiolähetysten kuuntelemiseksi matkaviestimellä ja matkaviestin
PCT/FI2004/000508 WO2005024997A1 (fr) 2003-09-05 2004-09-02 Structure d'antenne pour l'ecoute de radiodiffusions par une station mobile et station mobile

Publications (1)

Publication Number Publication Date
EP1661202A1 true EP1661202A1 (fr) 2006-05-31

Family

ID=27838935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04767022A Withdrawn EP1661202A1 (fr) 2003-09-05 2004-09-02 Structure d'antenne pour l'ecoute de radiodiffusions par une station mobile et station mobile

Country Status (3)

Country Link
EP (1) EP1661202A1 (fr)
FI (1) FI20031262A7 (fr)
WO (1) WO2005024997A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7383060B2 (en) * 2005-09-06 2008-06-03 Darts Technologies Corp. Mobile phone with FM antenna
US8472908B2 (en) 2006-04-03 2013-06-25 Fractus, S.A. Wireless portable device including internal broadcast receiver
US20090231210A1 (en) * 2008-03-13 2009-09-17 Sony Ericsson Mobile Communications Ab Portable device and battery
US9590293B2 (en) * 2014-09-16 2017-03-07 Google Inc. GPS/WiFi battery antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736591A (en) * 1970-10-30 1973-05-29 Motorola Inc Receiving antenna for miniature radio receiver
DE4024090A1 (de) * 1990-07-28 1992-01-30 Grundig Emv Sende- und/oder empfangsantenne fuer ein tragbares, in verschiedenen kommunikationsarten betreibbares geraet der nachrichtentechnik
SE511501C2 (sv) * 1997-07-09 1999-10-11 Allgon Ab Kompakt antennanordning
US6046703A (en) * 1998-11-10 2000-04-04 Nutex Communication Corp. Compact wireless transceiver board with directional printed circuit antenna
GB2358991B (en) * 1999-09-14 2002-02-13 Motorola Inc Wireless radio frequency peripheral interface for a cellular communication device
US7039437B2 (en) * 2001-09-17 2006-05-02 Nokia Corporation Internal broadcast reception system for mobile phones

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005024997A1 *

Also Published As

Publication number Publication date
WO2005024997A1 (fr) 2005-03-17
FI20031262A0 (fi) 2003-09-05
FI20031262L (fi) 2005-03-06
FI20031262A7 (fi) 2005-03-06

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Owner name: PULSE FINLAND OY

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Inventor name: KINNUNEN, PEKKA

Inventor name: MIKKOLA, JYRKI

Inventor name: ANNAMAA, PETTERI

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Inventor name: POEYTAEKANGAS, PEKKA

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