EP1430563A2 - Systeme d'antenne integre - Google Patents

Systeme d'antenne integre

Info

Publication number
EP1430563A2
EP1430563A2 EP02713361A EP02713361A EP1430563A2 EP 1430563 A2 EP1430563 A2 EP 1430563A2 EP 02713361 A EP02713361 A EP 02713361A EP 02713361 A EP02713361 A EP 02713361A EP 1430563 A2 EP1430563 A2 EP 1430563A2
Authority
EP
European Patent Office
Prior art keywords
resonating
antenna system
integrated antenna
connection
conductive
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Withdrawn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
EP02713361A
Other languages
German (de)
English (en)
Other versions
EP1430563A4 (fr
Inventor
Bonnie A. Crystal
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.)
Telisar Corp
Original Assignee
Telisar 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
Application filed by Telisar Corp filed Critical Telisar Corp
Publication of EP1430563A2 publication Critical patent/EP1430563A2/fr
Publication of EP1430563A4 publication Critical patent/EP1430563A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01Q1/2283—Supports; Mounting means by structural association with other equipment or articles mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • This invention is related to antennas in general, and in particular to miniature antennas for wireless communications.
  • Examples of such devices include, but are not limited to, cellular telephones, cordless telephones, wireless Local Area Network (LAN) equipment, radios, televisions, and wireless Personal Digital Assistants (PDAs).
  • cellular telephones cordless telephones
  • LAN Local Area Network
  • radios radios
  • televisions and wireless Personal Digital Assistants (PDAs).
  • PDAs Personal Digital Assistants
  • Such miniature antennas typically operate with signals within a range of frequencies. Ideally, the antennas should be tunable to those frequencies to maximize performance. However, because of the small size of the antennas and the devices for which they are used, traditional tuning methods are inappropriate. Hence, such antennas are designed for use with a range of frequencies, but cannot be optimized to work for any particular subsection of a broad range of frequencies. Therefore, there exists a need for a method and system to provide a miniature antenna system that is selectable and adaptable to work for a variety of frequencies or under a variety of conditions.
  • the present invention provides a system, apparatus and method for providing a selectably-tuned miniature antenna.
  • the integrated antenna system has a casing having a plurality of conductive pins aligned along parallel sides, such as a standard DIP package or surface mount integrated circuit package.
  • the antenna system also has a plurality of resonating elements each having a first connection and a second connection. Each resonating element is connected at the first connection to a different one of the conductive pins of the casing. Each resonating element is also electrically connected at the second connection to others resonating elements at a common pin, which is typically connected to ground.
  • the system also has an antenna element; and each resonating element is electrically coupled to that antenna element.
  • the antenna system has an insulating layer disposed between the resonating elements and the antenna element, with the resonating elements being capacitively coupled to the antenna element.
  • the resonating elements may be directly electrically connected to the antenna element.
  • one or more switches are connected to one of the connectors of at least one of the resonating elements such that opening the switch opens the circuit between the pin connected to the first connector of the resonating element and the common pin connected to the second connection of the resonating element.
  • a switch may be controlled by a switching circuit which is itself controlled by signals applied to a plurality of the casing's pins.
  • the resonating elements may comprise thin strips of conductive material, which may be constructed as miniature versions of existing wire antennas known in the art. Such conductive elements may be thin and patterned directly onto the appropriate surfaces of the antenna system 10.
  • a second type of resonating element uses small coils, either with a capacitor to tune the coil to the desired frequency or without such a variable capacitor or other tunable element.
  • the third type of resonating element 40 uses a coaxial cable having a conductive central core surrounded by an insulating layer which is surrounded by a conductive coaxial layer.
  • the central core is connected to the potential of the common pin and the first second connectors are electrically connected to the conductive coaxial layer.
  • a plurality of coaxial cables are embedded in a common non- conductive material.
  • Figure 1 is an illustration of a micro-antenna system according to the present invention.
  • Figure 2 is an illustration of the system of Figure 1 along line A-A.
  • Figures 3 illustrates an alternative embodiment to Figure 1 wherein switching circuitry is contained in the package.
  • Figure 4 illustrates an embodiment of a micro-resonator according to one embodiment of the present invention.
  • FIGs 1 and 2 are two different views of the same system, with Figure 2 being a cross-sectional view along line A-A of the antenna system of Figure 1.
  • the antenna system 10 comprises a casing 20 and pins 30, of the type of casing and pins commonly used in integrated circuits, either where pins 30 extend through the base substrate (the traditional dual-inline pin packaging (DIP)) or where casing 20 is typical of surface-mount integrated circuits.
  • DIP dual-inline pin packaging
  • Casing 20 contains one or more micro-antenna resonating elements 40, as described in detail below.
  • Resonating elements 40 are connected to a ground pin 34 among pins 30 and to an active pin 32.
  • the desired resonating element 40 may be selected simply by choosing the appropriate active pin 32 among pins 30.
  • resonating elements 40 of different characteristics such as directionality and frequency range
  • a variety of operational characteristics of antenna system 10 may be selected by the user or the circuitry external to antenna system 10. This may include selection of multiple resonating elements 40 simultaneously.
  • An insulating layer 50 is disposed above the resonating elements 40 and substantially covers one surface of antenna system 10.
  • a highly conductive antenna element 60 is disposed such that antenna element 60 and resonating element 40 are separated by insulating layer 50. In this manner resonating element 40 and antenna element 60 are capacitively coupled to each other. Alternatively, resonating element 40 and antenna element 60 may be directly connected.
  • One such method of direct connection is through a conductive via through insulating layer 50 (not shown).
  • antenna element 60 becomes a highly effective miniature antenna.
  • antenna element 60 may be an antenna surface slightly larger than resonating element 40, and may be shared by all such resonating elements 40. Alternatively, a plurality of antenna elements 60 may be disposed upon insulating layer 50. It should be noted that although one specific geometry of such an antenna system 10 is illustrated in Figures 1 and 2, a variety of alternative configurations may be utilized. Furthermore, by using multiple grounds disposed within antenna system 10, unwanted coupling interference between the resonating elements 40 can be minimized.
  • Figure 3 illustrates an alternative embodiment of an antenna system according to the present invention.
  • a casing 320 is similar to the casing 20 of Figure 1.
  • Each of several of a plurality of pins 330 is connected to one of a plurality of resonating elements 340.
  • switching circuitry 350 is connected to a different plurality of pins 330.
  • the switching circuitry 350 operates a plurality of switches 352, each switch 352 being disposed between a resonating element 340 and ground 334. In this manner signals on pins 330 corresponding to switching circuitry 350 may be used to select specific ones of resonating elements 340 to connect to ground 334, thereby activating the connection.
  • a resonating element 40 Three specific embodiments of a resonating element 40 are taught herein. While these embodiments are illustrative of miniature resonating elements 40 according to the present invention, they do not exhaustively catalogue the available alternative embodiments compatible with use with an antenna system according to the present invention.
  • the first embodiment of a resonating element 40 uses thin strips of conductive material to serve as the resonating element 40 and antenna element 60.
  • Such conductive strips may be constructed as miniature versions of existing wire antennas known in the art.
  • Such conductive elements may be thin and patterned directly onto the appropriate surfaces of the antenna system 10.
  • the second embodiment of a resonating element 40 uses small coils.
  • a capacitor may be used to tune the coil to the desired frequency.
  • switch 352 of Figure 3 may be replaced with a variable capacitor or other tunable element to facilitate tuning of resonating element 40.
  • the third embodiment of a resonating element 40 uses a coaxial cable, configured in a manner different than traditional uses of such cable, as illustrated in Figure 4.
  • a signal is placed on a conductor central core 450.
  • An insulator 440 surrounds conductor 450.
  • a second conductor 430 is tied to ground. The signal is prevented from interacting with signals external to the cable, such interference either being with or from an existing signal.
  • this polarity is reversed.
  • the conductive central core 450 is connected to ground and second conductor 430 receives the signal. In this manner rather than second conductor 430 shielding the signal, the arrangement actually enhances radiation of the signal for the antenna system 410.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne un système, un appareil et un procédé permettant d'obtenir une antenne miniature à accord sélectionnable. Le système d'antenne intégré selon l'invention comprend un boîtier pourvu d'une pluralité de broches conductrices alignées le long de côtés parallèles, tel qu'un boîtier DIL normalisé ou un boîtier de microcircuit monté en surface normalisé. Ce système d'antenne comprend également une pluralité d'éléments de résonance ayant chacun une première connexion et une seconde connexion. Chaque élément de résonance est connecté par la première connexion à une broche conductrice du boîtier et chaque élément de résonance est également relié électriquement par la seconde connexion à d'autres éléments de résonance par une broche commune, qui est généralement mise à la terre. En outre, ce système comprend un élément d'antenne; et chaque élément de résonance est couplé électriquement à cet élément d'antenne.
EP02713361A 2001-01-06 2002-01-07 Systeme d'antenne integre Withdrawn EP1430563A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26008301P 2001-01-06 2001-01-06
US260083P 2001-01-06
PCT/US2002/000239 WO2002060004A2 (fr) 2001-01-06 2002-01-07 Systeme d'antenne integre

Publications (2)

Publication Number Publication Date
EP1430563A2 true EP1430563A2 (fr) 2004-06-23
EP1430563A4 EP1430563A4 (fr) 2005-02-09

Family

ID=22987698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02713361A Withdrawn EP1430563A4 (fr) 2001-01-06 2002-01-07 Systeme d'antenne integre

Country Status (3)

Country Link
EP (1) EP1430563A4 (fr)
AU (1) AU2002245218A1 (fr)
WO (1) WO2002060004A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042868A1 (fr) 2002-11-07 2004-05-21 Fractus, S.A. Boitier de circuit integre incluant une antenne miniature
WO2006008180A1 (fr) 2004-07-23 2006-01-26 Fractus S.A. Antenne dans un boitier a interaction electromagnetique reduite avec des elements integres sur la puce
WO2006034940A1 (fr) 2004-09-27 2006-04-06 Fractus, S.A. Antenne accordable
US7893878B2 (en) 2006-12-29 2011-02-22 Broadcom Corporation Integrated circuit antenna structure
WO2007147629A1 (fr) 2006-06-23 2007-12-27 Fractus, S.A. Module de puce, carte sim, dispositif sans fil et procédé de communication sans fil
US7595766B2 (en) 2006-12-29 2009-09-29 Broadcom Corporation Low efficiency integrated circuit antenna
US8232919B2 (en) 2006-12-29 2012-07-31 Broadcom Corporation Integrated circuit MEMs antenna structure
US7979033B2 (en) 2006-12-29 2011-07-12 Broadcom Corporation IC antenna structures and applications thereof
US7973730B2 (en) 2006-12-29 2011-07-05 Broadcom Corporation Adjustable integrated circuit antenna structure
US7839334B2 (en) 2006-12-29 2010-11-23 Broadcom Corporation IC with a 55-64 GHz antenna
US7894777B1 (en) 2006-12-29 2011-02-22 Broadcom Corporation IC with a configurable antenna structure
US8164167B2 (en) 2007-03-09 2012-04-24 Nanyang Technological University Integrated circuit structure and a method of forming the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033667A1 (de) * 1980-09-06 1982-04-22 FTE maximal Fernsehtechnik und Elektromechanik GmbH & Co KG, 7130 Mühlacker Rundfunk- und/oder fernsehantennenanlage mit einem mehrbereichsverstaerker
EP0800229A2 (fr) * 1996-04-05 1997-10-08 Murata Manufacturing Co., Ltd. Antenne monopuce et procédé de fabrication d'une telle antenne
EP0863570A2 (fr) * 1997-03-05 1998-09-09 Murata Manufacturing Co., Ltd. Chip d'antenne et méthode d'ajustement de fréquence d'une telle antenne
WO1999053740A1 (fr) * 1998-04-14 1999-10-21 The Goodyear Tire & Rubber Company Emballage d'encapsulation et procede d'emballage d'un module de circuit electronique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668305B1 (fr) * 1990-10-18 1992-12-04 Alcatel Espace Dispositif d'alimentation d'un element rayonnant fonctionnant en double polarisation.
JP2846482B2 (ja) * 1991-01-28 1999-01-13 三菱電機株式会社 フィルタ・アンテナ装置
JP3114621B2 (ja) * 1996-06-19 2000-12-04 株式会社村田製作所 表面実装型アンテナおよびこれを用いた通信機
JP2001298320A (ja) * 2000-04-13 2001-10-26 Murata Mfg Co Ltd 円偏波アンテナ装置およびそれを用いた無線通信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033667A1 (de) * 1980-09-06 1982-04-22 FTE maximal Fernsehtechnik und Elektromechanik GmbH & Co KG, 7130 Mühlacker Rundfunk- und/oder fernsehantennenanlage mit einem mehrbereichsverstaerker
EP0800229A2 (fr) * 1996-04-05 1997-10-08 Murata Manufacturing Co., Ltd. Antenne monopuce et procédé de fabrication d'une telle antenne
EP0863570A2 (fr) * 1997-03-05 1998-09-09 Murata Manufacturing Co., Ltd. Chip d'antenne et méthode d'ajustement de fréquence d'une telle antenne
WO1999053740A1 (fr) * 1998-04-14 1999-10-21 The Goodyear Tire & Rubber Company Emballage d'encapsulation et procede d'emballage d'un module de circuit electronique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO02060004A2 *

Also Published As

Publication number Publication date
WO2002060004A3 (fr) 2002-11-14
WO2002060004A2 (fr) 2002-08-01
EP1430563A4 (fr) 2005-02-09
AU2002245218A1 (en) 2002-08-06

Similar Documents

Publication Publication Date Title
US6549169B1 (en) Antenna for mobile wireless communications and portable-type wireless apparatus using the same
US6424300B1 (en) Notch antennas and wireless communicators incorporating same
US6900768B2 (en) Antenna device and communication equipment using the device
US6734826B1 (en) Multi-band antenna
US6529749B1 (en) Convertible dipole/inverted-F antennas and wireless communicators incorporating the same
EP0623967B1 (fr) Dispositif d'antenne
KR100299298B1 (ko) 휴대용 통신장비의 안테나 장치
US20050237244A1 (en) Compact RF antenna
CN1375117A (zh) 用于无线通讯的扁平的双频带天线
WO2001063695A1 (fr) Antennes a large bande compactes en f inverse pourvues d'elements conducteurs et dispositifs de communication sans fil les integrant
WO2002082667A2 (fr) Structure d'antenne a deux bandes fente en papillon et plaque
JP3661432B2 (ja) 表面実装型アンテナおよびそれを用いたアンテナ装置およびそれを用いた通信機
US20020149524A1 (en) Antenna arrangement
EP1430563A2 (fr) Systeme d'antenne integre
US6172646B1 (en) Antenna apparatus and communication apparatus using the antenna apparatus
US6348900B1 (en) Antenna assembly
JP3253255B2 (ja) 携帯無線機用アンテナおよびそれを用いた携帯無線機
KR20010052132A (ko) 연장 피드를 구비한 축소가능한 무선전화기 안테나
KR20070065773A (ko) 안테나 및 이를 채용한 휴대무선장치
JPH1098405A (ja) アンテナ装置
EP0876688A1 (fr) Antenne pour frequences superieures a 200 mhz
EP1267439B1 (fr) Antenne multibandes utilisant deux antennes imbriquées et concentriques, l'antenne extérieure étant du type en méandres
JPH09232854A (ja) 移動無線機用小型平面アンテナ装置
KR101776261B1 (ko) 메타머티리얼 안테나
JP2007295361A (ja) デュプレクサ

Legal Events

Date Code Title Description
PUAJ Public notification under rule 129 epc

Free format text: ORIGINAL CODE: 0009425

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040114

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

A4 Supplementary search report drawn up and despatched

Effective date: 20041223

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 03H 7/46 B

Ipc: 7H 01L 23/057 B

Ipc: 7H 01Q 1/00 A

Ipc: 7H 01Q 1/22 B

Ipc: 7H 01Q 23/00 B

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050801