FI107656B - Lågpassfilter i en sändare och en mobil station - Google Patents

Lågpassfilter i en sändare och en mobil station Download PDF

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Publication number
FI107656B
FI107656B FI982362A FI982362A FI107656B FI 107656 B FI107656 B FI 107656B FI 982362 A FI982362 A FI 982362A FI 982362 A FI982362 A FI 982362A FI 107656 B FI107656 B FI 107656B
Authority
FI
Finland
Prior art keywords
pass filter
low
modulator
pass
transmitter
Prior art date
Application number
FI982362A
Other languages
English (en)
Finnish (fi)
Other versions
FI982362A0 (sv
FI982362A (sv
Inventor
Simo Murtojaervi
Harri Kimppa
Markus Pettersson
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8552820&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI107656(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI982362A priority Critical patent/FI107656B/sv
Publication of FI982362A0 publication Critical patent/FI982362A0/sv
Priority to DE69937329T priority patent/DE69937329T2/de
Priority to EP99308555A priority patent/EP0998024B1/en
Priority to US09/429,911 priority patent/US6373345B1/en
Priority to JP30993399A priority patent/JP4809962B2/ja
Publication of FI982362A publication Critical patent/FI982362A/sv
Application granted granted Critical
Publication of FI107656B publication Critical patent/FI107656B/sv

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/145—Balanced arrangements with transistors using a combination of bipolar transistors and field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/547—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1433—Balanced arrangements with transistors using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1483—Balanced arrangements with transistors comprising components for selecting a particular frequency component of the output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0033—Current mirrors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0084—Lowering the supply voltage and saving power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Claims (7)

1. Lägpassfilter för att dämpa högfrekvensinterferenser i en sändare, känneteck-nat av att lägpassfiltret är beläget i modulatoms strömspegel (7).
2. Lagpassfilter enligt patentkrav 1, kännetecknat av att modulatom är av 5 direktomvandlingstyp (5, 6, 7, 8).
3. Lagpassfilter enligt patentkrav 1, kännetecknat av att lägpassfiltret är beläget i strömspegeln (7) i modulatoms (5, 6, 7, 8) multiplikatorkrets (7, 8).
4. Lagpassfilter enligt patentkrav 3, kännetecknat av att lägpassfiltret är beläget mellan transistoreina i det transistorpar (Q23, Q24; Q25, Q26; Q27, Q28; Q29,
10 Q30) som speglar strömspegelns (7) Ström, och det filtrerar signalvägen mellan den transistor (Q23, Q25, Q27, Q29) som tillför ledning och den transistor (Q24, Q26, Q28, Q30) som bildar den avspeglade strömmen.
5. Lagpassfilter enligt patentkrav 4, kännetecknat av att lägpassfiltret bildas av en RC-lägpasskoppling (9), där motständet (R5, R6, R7, R8) kopplats i serie i 15 signallinjen och kondensatom (Cl, C2, C3, C4) kopplats parallellt i förhällande tili signalens rörelseriktning efter motständet (R5, R6, R7, R8) tili transistorparets (Q23, Q24; Q25, Q26; Q27, Q28; Q29, Q30) gemensamma potential. • · • · * .1
6. Lagpassfilter enligt patentkrav 5, kännetecknat av att transistorparets gemen- • · · samma potential kopplats tili driftspänningens negativa potential (V-). • · · • · • · • · ·.2: 20
7. Mobilapparat, vars sändarkedja (17) innefattar ett lagpassfilter för att dämpa • · v.: högfrekvensinterferenser, kännetecknad av att lägpassfiltret är beläget i strömspe- : geln (7) i sändarens modulator (5, 6, 7, 8, 17). • · • · · • · • · · , ·· · • · · • · • · • · · • · • · • · · · • ♦ · • · · • · · · • · · • · • · 2 ·
FI982362A 1998-10-30 1998-10-30 Lågpassfilter i en sändare och en mobil station FI107656B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI982362A FI107656B (sv) 1998-10-30 1998-10-30 Lågpassfilter i en sändare och en mobil station
DE69937329T DE69937329T2 (de) 1998-10-30 1999-10-28 Modulator für einen Sender und eine Mobilstation
EP99308555A EP0998024B1 (en) 1998-10-30 1999-10-28 Modulator structure for a transmitter and a mobile station
US09/429,911 US6373345B1 (en) 1998-10-30 1999-10-29 Modulator structure for a transmitter and a mobile station
JP30993399A JP4809962B2 (ja) 1998-10-30 1999-10-29 変調器および移動局

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982362A FI107656B (sv) 1998-10-30 1998-10-30 Lågpassfilter i en sändare och en mobil station
FI982362 1998-10-30

Publications (3)

Publication Number Publication Date
FI982362A0 FI982362A0 (sv) 1998-10-30
FI982362A FI982362A (sv) 2000-05-01
FI107656B true FI107656B (sv) 2001-09-14

Family

ID=8552820

Family Applications (1)

Application Number Title Priority Date Filing Date
FI982362A FI107656B (sv) 1998-10-30 1998-10-30 Lågpassfilter i en sändare och en mobil station

Country Status (5)

Country Link
US (1) US6373345B1 (sv)
EP (1) EP0998024B1 (sv)
JP (1) JP4809962B2 (sv)
DE (1) DE69937329T2 (sv)
FI (1) FI107656B (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030119473A1 (en) * 1998-11-09 2003-06-26 Smith Stephen H. Adjustable balanced modulator
DE10132802A1 (de) * 2001-07-06 2002-11-14 Infineon Technologies Ag Multipliziererschaltung
US6728527B2 (en) 2001-07-10 2004-04-27 Asulab S.A. Double up-conversion modulator
DE60108866T2 (de) * 2001-07-10 2006-01-12 Asulab S.A. Symmetrischer Quadraturmodulator unter Verwendung von zweistufiger Frequenzumsetzung
US7415077B2 (en) * 2002-07-29 2008-08-19 Infineon Technologies Ag Transmission arrangement, particularly for mobile radio
US6892057B2 (en) * 2002-08-08 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reducing dynamic range of a power amplifier
US6810242B2 (en) * 2002-09-30 2004-10-26 Skyworks Solutions, Inc. Subharmonic mixer
US7187917B2 (en) * 2004-03-29 2007-03-06 Texas Instruments Incorporated Current interpolation in multi-phase local oscillator for use with harmonic rejection mixer
KR100598437B1 (ko) * 2004-10-22 2006-07-11 한국전자통신연구원 직접변환 주파수 혼합기
JP4752272B2 (ja) * 2005-01-05 2011-08-17 ソニー株式会社 通信装置
US8400218B2 (en) * 2010-11-15 2013-03-19 Qualcomm, Incorporated Current mode power amplifier providing harmonic distortion suppression

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2841978B2 (ja) * 1991-10-30 1998-12-24 日本電気株式会社 周波数逓倍・ミキサ回路
JPH05121946A (ja) * 1991-10-30 1993-05-18 Sharp Corp 平衡変調回路
US5530722A (en) 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5379457A (en) * 1993-06-28 1995-01-03 Hewlett-Packard Company Low noise active mixer
JP3565281B2 (ja) * 1993-10-08 2004-09-15 ソニー株式会社 受信機
US5574755A (en) 1994-01-25 1996-11-12 Philips Electronics North America Corporation I/Q quadraphase modulator circuit
DE69426650T2 (de) * 1994-11-07 2001-09-06 Alcatel Sa Mischer für Sender, mit einem Eingang im Strom-Modus
EP0767536A3 (en) * 1995-10-02 1998-04-08 Nortel Networks Corporation An ECL clock phase shifter with CMOS digital control
JPH1056336A (ja) * 1996-08-09 1998-02-24 Mitsubishi Electric Corp ミキサ回路
JP3506587B2 (ja) 1997-08-19 2004-03-15 アルプス電気株式会社 二重平衡変調器及び四相位相変調器並びにデジタル通信機
US5847623A (en) 1997-09-08 1998-12-08 Ericsson Inc. Low noise Gilbert Multiplier Cells and quadrature modulators

Also Published As

Publication number Publication date
EP0998024B1 (en) 2007-10-17
EP0998024A2 (en) 2000-05-03
JP4809962B2 (ja) 2011-11-09
US6373345B1 (en) 2002-04-16
DE69937329T2 (de) 2008-07-17
EP0998024A3 (en) 2001-08-29
DE69937329D1 (de) 2007-11-29
JP2000165146A (ja) 2000-06-16
FI982362A0 (sv) 1998-10-30
FI982362A (sv) 2000-05-01

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