FI974022L - Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin - Google Patents

Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin Download PDF

Info

Publication number
FI974022L
FI974022L FI974022A FI974022A FI974022L FI 974022 L FI974022 L FI 974022L FI 974022 A FI974022 A FI 974022A FI 974022 A FI974022 A FI 974022A FI 974022 L FI974022 L FI 974022L
Authority
FI
Finland
Prior art keywords
coaxial cable
wireless communication
manufacturing
manufacturing coaxial
cable
Prior art date
Application number
FI974022A
Other languages
English (en)
Swedish (sv)
Other versions
FI106585B (fi
FI974022A0 (fi
Inventor
Markku Lipponen
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI974022A priority Critical patent/FI106585B/fi
Publication of FI974022A0 publication Critical patent/FI974022A0/fi
Priority to US09/176,679 priority patent/US6523252B1/en
Priority to EP98660108A priority patent/EP0911903A3/en
Publication of FI974022L publication Critical patent/FI974022L/fi
Application granted granted Critical
Publication of FI106585B publication Critical patent/FI106585B/fi

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/088—Stacked transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/06—Coaxial lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
    • H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
    • H05K1/0219—Printed shielding conductors for shielding around or between signal conductors, e.g. coplanar or coaxial printed shielding conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/095—Conductive through-holes or vias
    • H05K2201/09618—Via fence, i.e. one-dimensional array of vias
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09809—Coaxial layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
    • H05K2203/0703—Plating
    • H05K2203/0733—Method for plating stud vias, i.e. massive vias formed by plating the bottom of a hole without plating on the walls
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
    • H05K3/4053—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques
    • H05K3/4069—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques for via connections in organic insulating substrates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/42—Plated through-holes or plated via connections
    • H05K3/429—Plated through-holes specially for multilayer circuits, e.g. having connections to inner circuit layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49123—Co-axial cable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49126—Assembling bases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155—Manufacturing circuit on or in base
    • Y10T29/49162—Manufacturing circuit on or in base by using wire as conductive path

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Communication Cables (AREA)
FI974022A 1997-10-22 1997-10-22 Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin FI106585B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI974022A FI106585B (fi) 1997-10-22 1997-10-22 Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin
US09/176,679 US6523252B1 (en) 1997-10-22 1998-10-21 Coaxial cable, method for manufacturing a coaxial cable, and wireless communication device
EP98660108A EP0911903A3 (en) 1997-10-22 1998-10-22 Coaxcial cable, method for manufacturing a coaxial cable, and wireless communication device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974022A FI106585B (fi) 1997-10-22 1997-10-22 Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin
FI974022 1997-10-22

Publications (3)

Publication Number Publication Date
FI974022A0 FI974022A0 (fi) 1997-10-22
FI974022L true FI974022L (fi) 1999-04-23
FI106585B FI106585B (fi) 2001-02-28

Family

ID=8549774

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974022A FI106585B (fi) 1997-10-22 1997-10-22 Koaksiaalijohto, menetelmä koaksiaalijohdon valmistamiseksi ja langaton viestin

Country Status (3)

Country Link
US (1) US6523252B1 (fi)
EP (1) EP0911903A3 (fi)
FI (1) FI106585B (fi)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000018202A1 (en) * 1998-09-17 2000-03-30 Ibiden Co., Ltd. Multilayer build-up wiring board
US6675469B1 (en) * 1999-08-11 2004-01-13 Tessera, Inc. Vapor phase connection techniques
FI114585B (fi) * 2000-06-09 2004-11-15 Nokia Corp Siirtojohdin monikerrosrakenteissa
FR2826780A1 (fr) * 2001-06-28 2003-01-03 St Microelectronics Sa Dispositif semi-conducteur a structure hyperfrequence
JP5135658B2 (ja) * 2001-08-02 2013-02-06 ダイキン工業株式会社 ポリテトラフルオロエチレンファインパウダー、それから得られるポリテトラフルオロエチレン成形体およびその製造方法
WO2003049514A2 (en) 2001-12-03 2003-06-12 Memgen Corporation Miniature rf and microwave components and methods for fabricating such components
US7239219B2 (en) * 2001-12-03 2007-07-03 Microfabrica Inc. Miniature RF and microwave components and methods for fabricating such components
US9614266B2 (en) 2001-12-03 2017-04-04 Microfabrica Inc. Miniature RF and microwave components and methods for fabricating such components
US20030188889A1 (en) * 2002-04-09 2003-10-09 Ppc Electronic Ag Printed circuit board and method for producing it
US7091424B2 (en) * 2002-10-10 2006-08-15 International Business Machines Corporation Coaxial via structure for optimizing signal transmission in multiple layer electronic device carriers
DE602004028349D1 (de) 2003-03-04 2010-09-09 Rohm & Haas Elect Mat Koaxiale wellenleitermikrostrukturen und verfahern zu ihrer bildung
GB0305228D0 (en) * 2003-03-07 2003-04-09 Hewlett Packard Development Co A flat flexible cable
US10297421B1 (en) 2003-05-07 2019-05-21 Microfabrica Inc. Plasma etching of dielectric sacrificial material from reentrant multi-layer metal structures
GB0404819D0 (en) * 2004-03-04 2004-04-07 Liban Ali H Capacitor superconductor assembly
JP2006019567A (ja) * 2004-07-02 2006-01-19 Seiko Epson Corp シールド線
US8031033B2 (en) * 2005-11-30 2011-10-04 Avocent Corporation Printed multilayer solenoid delay line having at least two sub-sets with different patterns
JP2007193999A (ja) * 2006-01-17 2007-08-02 Sony Chemical & Information Device Corp 伝送ケーブル
JP4790558B2 (ja) * 2006-10-02 2011-10-12 日東電工株式会社 配線回路基板の製造方法
CN101274734A (zh) 2006-12-30 2008-10-01 罗门哈斯电子材料有限公司 三维微结构及其形成方法
JP2008188754A (ja) 2006-12-30 2008-08-21 Rohm & Haas Electronic Materials Llc 三次元微細構造体およびその形成方法
KR101593686B1 (ko) 2007-03-20 2016-02-12 누보트로닉스, 엘.엘.씨 일체화된 전자 요소들 및 이들의 형성 방법
KR101472134B1 (ko) 2007-03-20 2014-12-15 누보트로닉스, 엘.엘.씨 동축 전송선 마이크로구조물 및 그의 형성방법
TWM324855U (en) * 2007-03-23 2008-01-01 P Two Ind Inc Print type ultra-thin coaxial transmission cable
US8212580B2 (en) * 2007-04-02 2012-07-03 Google Inc. Scalable wideband probes, fixtures, and sockets for high speed IC testing and interconnects
US7977583B2 (en) * 2007-12-13 2011-07-12 Teradyne, Inc. Shielded cable interface module and method of fabrication
US8279025B2 (en) * 2008-12-09 2012-10-02 Taiwan Semiconductor Manufacturing Company, Ltd. Slow-wave coaxial transmission line having metal shield strips and dielectric strips with minimum dimensions
US8659371B2 (en) 2009-03-03 2014-02-25 Bae Systems Information And Electronic Systems Integration Inc. Three-dimensional matrix structure for defining a coaxial transmission line channel
US20100307798A1 (en) * 2009-06-03 2010-12-09 Izadian Jamal S Unified scalable high speed interconnects technologies
JP5424825B2 (ja) * 2009-11-12 2014-02-26 オリンパス株式会社 積層実装構造体
US20110123783A1 (en) 2009-11-23 2011-05-26 David Sherrer Multilayer build processses and devices thereof
US8917150B2 (en) 2010-01-22 2014-12-23 Nuvotronics, Llc Waveguide balun having waveguide structures disposed over a ground plane and having probes located in channels
TWM395240U (en) * 2010-05-28 2010-12-21 Tennrich Internat Crop Flexible flat cable
US10485095B2 (en) * 2011-03-10 2019-11-19 Mediatek, Inc. Printed circuit board design for high speed application
US9949360B2 (en) * 2011-03-10 2018-04-17 Mediatek Inc. Printed circuit board design for high speed application
US8866300B1 (en) 2011-06-05 2014-10-21 Nuvotronics, Llc Devices and methods for solder flow control in three-dimensional microstructures
US8814601B1 (en) 2011-06-06 2014-08-26 Nuvotronics, Llc Batch fabricated microconnectors
EP2731783A4 (en) 2011-07-13 2016-03-09 Nuvotronics Llc METHOD FOR PRODUCING ELECTRONIC AND MECHANICAL STRUCTURES
JP2013118354A (ja) * 2011-11-02 2013-06-13 Japan Electronic Materials Corp 多層絶縁基板および多層絶縁基板の製造方法
US9144150B2 (en) * 2012-04-20 2015-09-22 Xilinx, Inc. Conductor structure with integrated via element
US20130322029A1 (en) * 2012-05-30 2013-12-05 Dror Hurwitz Multilayer electronic structure with integral faraday shielding
US9325044B2 (en) 2013-01-26 2016-04-26 Nuvotronics, Inc. Multi-layer digital elliptic filter and method
US9306255B1 (en) 2013-03-15 2016-04-05 Nuvotronics, Inc. Microstructure including microstructural waveguide elements and/or IC chips that are mechanically interconnected to each other
US9306254B1 (en) 2013-03-15 2016-04-05 Nuvotronics, Inc. Substrate-free mechanical interconnection of electronic sub-systems using a spring configuration
JP6166100B2 (ja) * 2013-05-24 2017-07-19 日本電信電話株式会社 低損失伝送線路
WO2015109208A2 (en) 2014-01-17 2015-07-23 Nuvotronics, Llc Wafer scale test interface unit: low loss and high isolation devices and methods for high speed and high density mixed signal interconnects and contactors
US9504159B2 (en) * 2014-01-31 2016-11-22 Intel Corporation Circuit component bridge device
US10847469B2 (en) 2016-04-26 2020-11-24 Cubic Corporation CTE compensation for wafer-level and chip-scale packages and assemblies
US10553557B2 (en) * 2014-11-05 2020-02-04 Infineon Technologies Austria Ag Electronic component, system and method
US10064287B2 (en) 2014-11-05 2018-08-28 Infineon Technologies Austria Ag System and method of providing a semiconductor carrier and redistribution structure
US10192846B2 (en) 2014-11-05 2019-01-29 Infineon Technologies Austria Ag Method of inserting an electronic component into a slot in a circuit board
US10511073B2 (en) 2014-12-03 2019-12-17 Cubic Corporation Systems and methods for manufacturing stacked circuits and transmission lines
US9478508B1 (en) * 2015-06-08 2016-10-25 Raytheon Company Microwave integrated circuit (MMIC) damascene electrical interconnect for microwave energy transmission
US20170053873A1 (en) * 2015-08-19 2017-02-23 Huilong Zhu Flexible integrated circuit devices and methods for manufacturing the same
KR102442838B1 (ko) * 2015-09-24 2022-09-15 주식회사 기가레인 3층 유전체 및 4층 그라운드 레이어 구조를 갖는 연성회로기판
US9992859B2 (en) 2015-09-25 2018-06-05 Intel Corporation Low loss and low cross talk transmission lines using shaped vias
US10319654B1 (en) 2017-12-01 2019-06-11 Cubic Corporation Integrated chip scale packages
CN110544551B (zh) * 2018-05-29 2021-05-11 昇印光电(昆山)股份有限公司 导电膜及制备方法
CN112752429B (zh) * 2019-10-31 2022-08-16 鹏鼎控股(深圳)股份有限公司 多层线路板及其制作方法
KR102896737B1 (ko) * 2020-03-18 2025-12-08 삼성전자주식회사 그라운드 배선을 포함하는 인쇄회로기판
CN111372386B (zh) * 2020-04-22 2022-03-11 上海航天电子通讯设备研究所 基于多层电路板的矩形微同轴传输线制备方法及传输线
US12389532B2 (en) * 2020-05-13 2025-08-12 Sumitomo Electric Printed Circuits, Inc. High-frequency circuit
US12621937B2 (en) * 2021-06-04 2026-05-05 Intel Corporation Package substrate including core with trench vias and planes
US12557211B2 (en) 2021-06-04 2026-02-17 Intel Corporation Package having thick glass core with high aspect ratio vias
US20230053890A1 (en) * 2021-08-17 2023-02-23 International Business Machines Corporation Ultrahigh isolation stripline circuit
CN119133819B (zh) * 2024-09-09 2025-08-01 航科新世纪科技发展(深圳)有限公司 一种以蓝宝石为内导体支撑层的微同轴传输线的制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613230A (en) 1969-04-29 1971-10-19 Bunker Ramo Method of fabricating coaxial circuitry
US3649274A (en) * 1969-09-18 1972-03-14 Bunker Ramo Coaxial circuit construction method
US3922479A (en) * 1971-09-15 1975-11-25 Bunker Ramo Coaxial circuit construction and method of making
US4673904A (en) 1984-11-14 1987-06-16 Itt Corporation Micro-coaxial substrate
US4915983A (en) * 1985-06-10 1990-04-10 The Foxboro Company Multilayer circuit board fabrication process
US4776087A (en) 1987-04-27 1988-10-11 International Business Machines Corporation VLSI coaxial wiring structure
SE462194B (sv) 1988-03-31 1990-05-14 Ericsson Telefon Ab L M Foerfarande att aastadkomma en integrerad koaxialledare i ett flerlager-keramiksubstrat
US4845311A (en) 1988-07-21 1989-07-04 Hughes Aircraft Company Flexible coaxial cable apparatus and method
JP2858073B2 (ja) 1992-12-28 1999-02-17 ティーディーケイ株式会社 多層セラミック部品
US5644276A (en) * 1996-05-29 1997-07-01 The United States Of America As Represented By The Secretary Of The Army Multi-layer controllable impedance transition device for microwaves/millimeter waves
JP4195731B2 (ja) * 1996-07-25 2008-12-10 富士通株式会社 多層プリント板及びこれを利用した高周波回路装置
JPH09191206A (ja) * 1997-02-14 1997-07-22 Murata Mfg Co Ltd 誘電体同軸共振器および多層回路基板

Also Published As

Publication number Publication date
EP0911903A3 (en) 2001-06-06
FI106585B (fi) 2001-02-28
EP0911903A2 (en) 1999-04-28
FI974022A0 (fi) 1997-10-22
US20010040051A1 (en) 2001-11-15
US6523252B1 (en) 2003-02-25

Similar Documents

Publication Publication Date Title
FI980321L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
FI982763A0 (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
FI970185L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
DE69926431D1 (de) Drahtloses Kommunikationsverfahren und -System, Übertragungsstation, und Steuerstation
FI970618A7 (fi) Kommunikointiyksikkö, antenni ja menetelmä antennin liittämiseksi
FI974347A7 (fi) Langaton viestin ja menetelmä langattoman viestimen valmistuksessa
FI955852A0 (fi) Menetelmä ja järjestely radiotietoliikennettä varten
AU1431700A (en) Arrangement, system and method relating radio communication
AU8476398A (en) Local wireless communications system with external communications link
DE69832002D1 (de) Übertragungssystem und Übertragungsverfahren,Empfangssystem und Empfangsverfahren
AU2733400A (en) System and method for enhanced wireless communication features
FI990757L (fi) Menetelmä matkaviestinyhteyksien valvomiseksi
FI20000851L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
DE69823809D1 (de) Kommunikation zwischen stationen
AU7806900A (en) Wireless parallel communications system and method therefor
FI20001414L (fi) Skaalattava langattoman viestinnän verkko ja menetelmä
AU1553499A (en) Communication system, communication method and corresponding devices
FI981518L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
FI982012A0 (fi) Menetelmä matkaviestimen todentamiseksi, tietoliikennejärjestelmä ja matkaviestin
EE200000128A (et) Raadiosides kasutatav seade ja meetod
FI980703L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
AU7067398A (en) Wireless communications network planning
FI980219L (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä
FI981934A0 (fi) Lähetysmenetelmä ja radiojärjestelmä
FI981589A0 (fi) Tiedonsiirtomenetelmä ja radiojärjestelmä