WO2003030386A1 - Circuit, module de commutation comprenant ce circuit et utilisation de ce module - Google Patents

Circuit, module de commutation comprenant ce circuit et utilisation de ce module Download PDF

Info

Publication number
WO2003030386A1
WO2003030386A1 PCT/DE2002/003687 DE0203687W WO03030386A1 WO 2003030386 A1 WO2003030386 A1 WO 2003030386A1 DE 0203687 W DE0203687 W DE 0203687W WO 03030386 A1 WO03030386 A1 WO 03030386A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit arrangement
arrangement according
protective device
switch
switching unit
Prior art date
Application number
PCT/DE2002/003687
Other languages
German (de)
English (en)
Inventor
Christian Block
Holger FLÜHR
Kurt Wiesbauer
Johann Riedler
Heinz Ragossnig
Heinz Florian
Günther GREIER
Original Assignee
Epcos Ag
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
Priority claimed from DE2002101434 external-priority patent/DE10201434A1/de
Application filed by Epcos Ag filed Critical Epcos Ag
Priority to US10/490,753 priority Critical patent/US20050059371A1/en
Priority to JP2003533459A priority patent/JP2005505188A/ja
Publication of WO2003030386A1 publication Critical patent/WO2003030386A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter

Definitions

  • Circuit arrangements of the type mentioned are often used as multiband front-end modules for mobile telephones.
  • they are connected to the antenna of the mobile phone at the antenna input. Touching the antenna by an electrically charged user can cause electrostatic
  • Electrostatic Discharge ESD Electrostatic Discharge
  • circuit arrangements of the type mentioned at the outset are known which are equipped with a protective device against ESD.
  • the protection device is formed by an electrical high-pass filter, in which a capacitance is connected in series and an inductance is connected in parallel to the antenna input path.
  • an electrostatic discharge can also have a direct effect on the ground potential of the circuit arrangement in the case of a circuit arrangement mentioned at the beginning.
  • the voltage pulse resulting from an electrostatic discharge can have an effect on the circuit arrangement in addition to the path via the antenna and also via the control line.
  • the high-pass filter used in the known circuit arrangement has the property of being a very simply constructed filter which allows all frequency components of a signal to pass almost unhindered from a certain cut-off frequency.
  • a very narrow frequency range is decisive for the further processing of the signals captured by the antenna in a mobile phone.
  • frequencies between approximately 1 and 2 GHz are used in mobile telephones according to the GSM, PCN or PCS standard. All other frequencies captured by the antenna are rather annoying and must therefore be filtered out.
  • at least one bandpass filter is necessary in order to make the signals collected by the circuit arrangement mentioned above processable for a mobile phone.
  • the high-pass filter arranged in the known circuit arrangement can only cut off frequencies below a cut-off frequency. It must therefore be followed by at least one filter circuit in order to cut out the frequency range of interest for the mobile phone from the signals picked up by the antenna.
  • the known circuit arrangement has the disadvantage that the high-pass filter circuit used to protect against ESD has an insertion loss, due to which the useful signals also experience a certain amount of attenuation, but the transmitted frequency band is not yet clipped. Accordingly, the known circuit arrangement in conjunction with the further filtering required has the disadvantage of an overall high insertion loss.
  • the aim of the present invention is therefore to provide a circuit arrangement of the type mentioned at the beginning, in which the protective device against electrostatic discharges has a low insertion vaporization.
  • a circuit arrangement which contains a switching unit with an antenna input, a signal input and a signal output.
  • the switching unit is suitable for connecting the antenna input to the signal input or the signal output in an electrically conductive manner.
  • the antenna input is connected to a first protective device against electrostatic discharge.
  • the first protective device against electrostatic discharges has an antenna input and a switch output, the switch output having the antenna input Switch unit is connected.
  • the antenna input of the protection device and the switch output of the protection device are connected by a line.
  • a voltage limiting element which can be, for example, a varistor, a spark gap or a surge arrester, is connected in parallel to ground. The voltage limiting element is connected to a ground.
  • overvoltages present at the antenna input of the protective device can be derived against ground.
  • the essential function of the protective device is to limit the voltage present at the antenna input of the circuit unit.
  • the circuit arrangement according to the invention has the advantage that a filter function is dispensed with due to the special design of the protective device, as a result of which the insertion loss of the first protective device is low.
  • the protective mechanism of the circuit arrangement can be improved by connecting an inductor in parallel with the voltage limiting element.
  • This inductance is in turn connected to the ground.
  • the inductance connected in parallel to the voltage limiting element is suitable for deriving very low frequencies to ground.
  • the protective device thus transmits high frequencies unchanged from the antenna input to the switching unit.
  • a first inductance is connected between the antenna input and the voltage limiting element and a second inductance is connected in series with the line between the voltage limiting element and the switch output.
  • the impedance of the protective device can be adapted to the value of 50 ⁇ which is usual in the high frequency range.
  • a suitable choice of the inductances between 0 and 47 nH a low insertion loss of the first protective device ⁇ 0.3 dB can be achieved.
  • a control line can be arranged on the switching unit, which controls the switch position of the switching unit.
  • protection against overvoltages can be further improved by also connecting the control line of the circuit arrangement to a second protective device against electrostatic discharges.
  • ESD protection protection against overvoltages
  • the overvoltages applied to the control unit via ground couplings and present at the control line can be reduced particularly effectively.
  • the protective devices against electrostatic discharges are advantageously connected to a ground connection, into which the overvoltages of the electrostatic discharge can be derived.
  • the switching unit can be, for example, a voltage-controlled switch, as is usually used in mobile telephones due to its low power consumption.
  • the switching unit can also have a plurality of signal inputs and outputs. Accordingly, several control lines are required.
  • the gallium arsenide switch can also be provided with a decoder, which can be used to reduce the number of control lines.
  • a decoder usually requires a power supply that is connected via a supply line.
  • the ESD protection of one Such a circuit can be further improved by connecting the supply line to a third protective device against electrostatic discharge.
  • the circuit arrangement can also contain frequency filters which are assigned to individual signal inputs or signal outputs. They are particularly suitable for filtering the frequencies picked up by the antenna in a mobile phone so that the filtered signals passed through the signal output can be processed further by the mobile phone. The same applies to the signal inputs of the circuit arrangement that are used in a mobile phone to send voice signals generated in the mobile phone to a receiver via the antenna.
  • a second protective device against electrostatic discharge is, for example, the use of a varistor which is connected in parallel with the control line and which is connected to a ground potential. From a certain limit voltage, such a varistor has a very low ohmic resistance, so that overvoltages can be diverted to ground.
  • varistors with a low switching voltage are suitable, since in this case the circuit arrangement occurring during a voltage pulse residual stress is lowest. It is therefore possible to use varistors with a varistor voltage between 4 and 20 V. Accordingly, the terminal voltage loading the circuit arrangement in the case of a voltage pulse is approximately 8 to approximately 50 V. As a result, the circuit arrangement can be reliably protected against destruction in the event of an ESD pulse.
  • the invention provides a circuit arrangement in which the antenna input is connected to an antenna and in which the signal output is connected to a receiving amplifier of a mobile phone and the signal input is connected to a transmitting amplifier of a mobile phone.
  • a switching module which contains a circuit arrangement according to the invention.
  • the switching module also contains a multilayer ceramic substrate with integrated passive components that form electrical frequency filters. These frequency filters are assigned to the signal inputs and outputs.
  • the switching unit is arranged on the upper side of the multilayer ceramic substrate and can be implemented, for example, with the aid of PIN diodes or also in the form of a gallium arsenide switch.
  • the first and optionally second protective device against electrostatic discharge is integrated into the switching module.
  • the integration of the first and possibly the second protective device into the Switching module can take place, for example, by building these components on the surface of the ceramic substrate next to the switching unit.
  • the switching module is also advantageous to use the switching module as a front-end module in a mobile phone.
  • FIG. 2 shows an example of a further circuit arrangement according to the invention in a basic circuit diagram.
  • FIG. 3 shows the use of the circuit arrangement according to the invention in a mobile telephone based on a basic circuit diagram.
  • FIG. 4 shows an example of a switching module according to the invention in a schematic longitudinal section.
  • FIG. 1 shows a circuit arrangement with a switching unit 4, which is provided with a ground 8.
  • the switching unit 4 has an antenna input 1, which is connected to an antenna 18.
  • the antenna input 1 is connected to a first protective device 6 against electrostatic discharge (symbolized by the lightning in FIG. 1).
  • the switching unit 4 contains at least one control line 5 which controls the switching process for connecting the antenna input 1 to the signal inputs 2 or the signal outputs 3 of the switching unit 4.
  • Three control lines 5 are shown in FIG. At least one of these control Lines 5 is provided with a second protective device 7 against electrostatic discharge.
  • This second protective device 7 is designed in the form of a varistor, which is connected to ground 8.
  • the switching unit 4 shown in FIG. 1 also has a decoder, for which a supply line 11 is required.
  • the supply line 11 is connected to a supply voltage + Vcc.
  • the supply line 11 is connected to a third protective device 12 against electrostatic discharge.
  • the protective device 12 can be a varistor, for example
  • the voltage limiting element 114 can be a varistor, for example.
  • the inductance L3 and the varistor are connected to the ground 8 of the circuit arrangement.
  • the voltage coupled into the switching unit 4 is limited by the varistor.
  • the switching voltage of the varistor which should be between 4 and 8 V.
  • the lower the switching voltage of the varistor the better the overvoltages can be derived and thus suppressed with regard to the switching unit 4.
  • a switching voltage of the varistor of 6 V or less is advantageous. This also applies to the second and third protective devices 7, 12.
  • the switching voltage of the varistor indicates the residual voltage that remains from the high-voltage pulse and that is passed through the protective device to the switching unit 4.
  • the inductances in the first protective device preferably have the following values:
  • Ll from 0 to 5 nH
  • L2 from 0 to 5 nH
  • L3 from 0 to 47 nH
  • FIG. 2 shows a voltage-controlled GaAs switch 9 with an antenna input 1, to which an antenna 18 is connected.
  • the GaAs switch 9 has transmitter inputs TX ] _, TX2 and receiver inputs RXi, RX2 and RX3.
  • the GaAs switch 9 is controlled via control inputs S ⁇ , S2, S3, S4, S5.
  • the control takes place in such a way that exactly one of the control inputs S ] _, S2, S3, S4 and S5 is set to "high", while the other control inputs are set to "low”. Due to the decoder 10 connected to the GaAs switch 9, the
  • the decoder 10 can be, for example, a 1 out of 5 decoder. It has control inputs E] _, E2 and E3 as well as control outputs A] _, A2, A3, A4 and A5. The control outputs A ⁇ , A2, A3, A4 and A5 are connected by control lines 24 to the control inputs S] _, S2, S3, S4, S5 of the GaAs switch 9.
  • control inputs E] _, E2 and E3 of the decoder 10 are connected to control lines 5.
  • the transmitter inputs TX ⁇ , X 2 correspond to the signal inputs 2 from FIG. 1.
  • the receiver inputs RX] _, RX / and RX3 correspond to the signal outputs 3 from FIG. 1.
  • FIG. 3 shows a switching module with a GaAs switch 9, which has an antenna input 1 and two signal inputs 2 and three signal outputs 3.
  • the switching module has two low-pass filters 13, 14, the low-pass filter 13 for the GSM frequency band and the low-pass filter 14 for the PCN / PCS frequency band.
  • the GaAs switch 9 optionally connects one of the inputs / outputs 2, 3 to its antenna input 1.
  • the switching module also has bandpass filters 15, 16, 17, which are connected to the signal outputs 3.
  • the bandpass filter 15 is adapted to the GSM frequency, the bandpass filter 16 to the PCN frequency and the bandpass filter 17 to the PCS frequency.
  • FIG. 4 shows a switching module with a multilayer ceramic substrate 20, in which passive components 21, 22, 23 are integrated. These passive components 21, 22, 23 can be, for example, resistors 21, capacitors 22 and inductors 23.
  • the multilayer ceramic substrate 20 can be designed in a manner known per se. Ceramic layers 30 stacked on top of one another, which are separated from one another by metallic layers 31, can be used as a multilayer ceramic substrate 20. Some of the metallic layers 31 are connected to one another by vias 32 running inside the ceramic layers 30.
  • a switching unit 4 is mounted, which can be, for example, a gallium arsenide multiple switch mounted in flip-chip technology.
  • the switching unit 4 can be attached and electrically contacted, for example, by gluing and additional wire bonding.
  • a GaAs multiple switch is preferably used as the switching unit 4.
  • Such a switch can have an insertion loss of 0.8 dB in the frequency range between 1 and 2 GHz.
  • This can be an integrated circuit with FET, based on gallium arsenide, the pin surfaces of which can be connected to the ceramic substrate 20 by soldering.
  • the switching unit 4 can also be attached to the multilayer ceramic substrate 20 and electrically connected by means of wire bonding. A connection by means of soldering is preferably used if the switching unit 4 is used with an additional housing.
  • the passive components 21, 22, 23 can form the filters 13, 14, 15, 16, 17 required according to FIG.
  • the first protective device 6 and the second protective device 7 are also mounted on the surface of the substrate 20. This achieves a high degree of integration for the switching module according to the invention, which has a positive effect on the space requirement of the switching module.
  • Such a switching module can be used, for example, in mobile telephones, which is why the advantageous use of the switching module according to the invention as a front-end module in a mobile radio device is a further subject of the invention.
  • the invention is not limited to the examples mentioned for the second and third protective device, rather all conceivable protective devices can be used in the circuit arrangement according to the invention.
  • the circuit arrangement or the switching module is not restricted to use in mobile telephones.
  • TX ⁇ _, TX 2 transmitter inputs

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

L'invention concerne un circuit comprenant une entrée d'antenne (1), une entrée de signal (2) et une sortie de signal (3), ainsi qu'une unité de commutation (4). L'entrée d'antenne (1) est reliée à un premier dispositif de protection (6) contre les décharges électrostatiques, ce dispositif de protection (6) comprenant une entrée d'antenne (111) et une sortie de commutation (112) reliées par une ligne (113). Un élément de limitation de tension (114) est relié à une masse (8) en parallèle à la ligne (113). L'avantage de ce circuit est que le dispositif de protection (6) présente un affaiblissement d'insertion réduit. L'invention concerne par ailleurs un module de commutation et son utilisation comme module frontal.
PCT/DE2002/003687 2001-09-28 2002-09-30 Circuit, module de commutation comprenant ce circuit et utilisation de ce module WO2003030386A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/490,753 US20050059371A1 (en) 2001-09-28 2002-09-30 Circuit arrangement, switching module comprising said circuit arrangement and use of switching module
JP2003533459A JP2005505188A (ja) 2001-09-28 2002-09-30 回路装置、該回路装置を有するスイッチングモジュール、および該スイッチングモジュールの使用方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10147985.9 2001-09-28
DE10147985 2001-09-28
DE10201434.5 2002-01-16
DE2002101434 DE10201434A1 (de) 2002-01-16 2002-01-16 Schaltungsanordnung, Schaltmodul mit der Schaltungsanordnung und Verwendung des Schaltmoduls

Publications (1)

Publication Number Publication Date
WO2003030386A1 true WO2003030386A1 (fr) 2003-04-10

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PCT/DE2002/003687 WO2003030386A1 (fr) 2001-09-28 2002-09-30 Circuit, module de commutation comprenant ce circuit et utilisation de ce module

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JP (1) JP2005505188A (fr)
WO (1) WO2003030386A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006034838A1 (fr) * 2004-09-28 2006-04-06 Hirschmann Car Communication Gmbh Amplificateur d'antenne de vehicule comportant des moyens de protection contre les decharges electrostatiques dans l'entree
WO2006040093A1 (fr) * 2004-10-12 2006-04-20 Epcos Ag Module frontal comprenant un commutateur d'antenne
EP1693921A1 (fr) * 2005-02-22 2006-08-23 OBO Bettermann GmbH & Co. KG. Appareil électrique pour protection de terminals
US7821759B2 (en) 2004-11-30 2010-10-26 Tdk Corporation Surge absorption circuit
US8014731B2 (en) 2001-01-18 2011-09-06 Epcos Ag Electric circuit module, circuit module arrangement and use of said circuit module and of said circuit module arrangement
US8116046B2 (en) 2002-10-02 2012-02-14 Epcos Ag Circuit arrangement that includes a device to protect against electrostatic discharge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4715371B2 (ja) 2005-07-29 2011-07-06 Ｔｄｋ株式会社 サージ吸収素子及びサージ吸収回路
WO2011111259A1 (fr) * 2010-03-12 2011-09-15 株式会社村田製作所 Circuit frontal pour appareil de communication sans fil
KR101608226B1 (ko) 2014-11-20 2016-04-14 주식회사 아모텍 감전보호소자 및 이를 구비한 휴대용 전자장치
KR101585619B1 (ko) 2014-11-20 2016-01-15 주식회사 아모텍 감전보호소자 및 이를 구비한 휴대용 전자장치
KR101608224B1 (ko) 2014-11-20 2016-04-14 주식회사 아모텍 감전보호소자 및 이를 구비한 휴대용 전자장치
TWI669991B (zh) 2018-01-11 2019-08-21 和碩聯合科技股份有限公司 具靜電放電保護機制的電路板及具有此電路板的電子裝置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783846A (en) * 1987-06-04 1988-11-08 General Instrument Corporation Switchable signal source module for use with cable television converter
JPH06112850A (ja) * 1992-09-28 1994-04-22 Fujitsu Ltd 静電保護回路
EP0681365A1 (fr) * 1994-05-02 1995-11-08 Pioneer Electronic Corporation Circuit pour empêcher la destruction électrostatique et appareil de réception l'utilisant
EP1037308A1 (fr) * 1999-03-18 2000-09-20 Telefonaktiebolaget Lm Ericsson Filtre électrique pour filtrer fréquences baisses
DE19931056A1 (de) * 1999-07-06 2001-01-25 Epcos Ag Vielschichtvaristor niedriger Kapazität
EP1073208A2 (fr) * 1999-07-29 2001-01-31 Murata Manufacturing Co., Ltd. Commutateur de radiofréquences
DE19944489A1 (de) * 1999-09-16 2001-04-19 Infineon Technologies Ag ESD-Schutzanordnung für Signaleingänge und -ausgänge bei Halbleitervorrichtungen mit Substrattrennung
JP2001127663A (ja) * 1999-10-29 2001-05-11 Ngk Spark Plug Co Ltd 静電気保護回路
WO2002058239A2 (fr) * 2001-01-18 2002-07-25 Epcos Ag Module de commutation electrique, son mode de couplage et leur utilisation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783846A (en) * 1987-06-04 1988-11-08 General Instrument Corporation Switchable signal source module for use with cable television converter
JPH06112850A (ja) * 1992-09-28 1994-04-22 Fujitsu Ltd 静電保護回路
EP0681365A1 (fr) * 1994-05-02 1995-11-08 Pioneer Electronic Corporation Circuit pour empêcher la destruction électrostatique et appareil de réception l'utilisant
EP1037308A1 (fr) * 1999-03-18 2000-09-20 Telefonaktiebolaget Lm Ericsson Filtre électrique pour filtrer fréquences baisses
DE19931056A1 (de) * 1999-07-06 2001-01-25 Epcos Ag Vielschichtvaristor niedriger Kapazität
EP1073208A2 (fr) * 1999-07-29 2001-01-31 Murata Manufacturing Co., Ltd. Commutateur de radiofréquences
DE19944489A1 (de) * 1999-09-16 2001-04-19 Infineon Technologies Ag ESD-Schutzanordnung für Signaleingänge und -ausgänge bei Halbleitervorrichtungen mit Substrattrennung
JP2001127663A (ja) * 1999-10-29 2001-05-11 Ngk Spark Plug Co Ltd 静電気保護回路
WO2002058239A2 (fr) * 2001-01-18 2002-07-25 Epcos Ag Module de commutation electrique, son mode de couplage et leur utilisation

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BENZ ET AL: "Tabellenbuch Radio- und Fernsehtechnik Funkelektronik", 1993, KIESER-VERLAG, NEUSÄSS, XP002232831 *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 390 (E - 1582) 21 July 1994 (1994-07-21) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 22 9 March 2001 (2001-03-09) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8014731B2 (en) 2001-01-18 2011-09-06 Epcos Ag Electric circuit module, circuit module arrangement and use of said circuit module and of said circuit module arrangement
US8116046B2 (en) 2002-10-02 2012-02-14 Epcos Ag Circuit arrangement that includes a device to protect against electrostatic discharge
WO2006034838A1 (fr) * 2004-09-28 2006-04-06 Hirschmann Car Communication Gmbh Amplificateur d'antenne de vehicule comportant des moyens de protection contre les decharges electrostatiques dans l'entree
WO2006040093A1 (fr) * 2004-10-12 2006-04-20 Epcos Ag Module frontal comprenant un commutateur d'antenne
JP2008516494A (ja) * 2004-10-12 2008-05-15 エプコス アクチエンゲゼルシャフト アンテナスイッチを備えたフロントエンドモジュール
US8077656B2 (en) 2004-10-12 2011-12-13 Epcos Ag Front end module comprising an antenna switch
US7821759B2 (en) 2004-11-30 2010-10-26 Tdk Corporation Surge absorption circuit
EP1693921A1 (fr) * 2005-02-22 2006-08-23 OBO Bettermann GmbH & Co. KG. Appareil électrique pour protection de terminals

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