ATE289128T1 - Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung - Google Patents
Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzungInfo
- Publication number
- ATE289128T1 ATE289128T1 AT01202654T AT01202654T ATE289128T1 AT E289128 T1 ATE289128 T1 AT E289128T1 AT 01202654 T AT01202654 T AT 01202654T AT 01202654 T AT01202654 T AT 01202654T AT E289128 T1 ATE289128 T1 AT E289128T1
- Authority
- AT
- Austria
- Prior art keywords
- frequency conversion
- modulator
- quadrature modulator
- stage frequency
- block
- Prior art date
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01202654A EP1289122B1 (de) | 2001-07-10 | 2001-07-10 | Symmetrischer Quadraturmodulator unter Verwendung von zweistufiger Frequenzumsetzung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE289128T1 true ATE289128T1 (de) | 2005-02-15 |
Family
ID=8180627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01202654T ATE289128T1 (de) | 2001-07-10 | 2001-07-10 | Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1289122B1 (de) |
AT (1) | ATE289128T1 (de) |
DE (1) | DE60108866T2 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5373265A (en) * | 1993-07-06 | 1994-12-13 | At&T Corp. | Modulator having oscillator for generating IF and RF signals by division and up-conversion |
US6029059A (en) * | 1997-06-30 | 2000-02-22 | Lucent Technologies, Inc. | Quadrature mixer method and apparatus |
US5847623A (en) * | 1997-09-08 | 1998-12-08 | Ericsson Inc. | Low noise Gilbert Multiplier Cells and quadrature modulators |
US5861781A (en) * | 1997-09-16 | 1999-01-19 | Lucent Technologies Inc. | Single sideband double quadrature modulator |
FI107656B (fi) * | 1998-10-30 | 2001-09-14 | Nokia Mobile Phones Ltd | Alipäästösuodin lähettimessä ja matkaviestin |
-
2001
- 2001-07-10 DE DE60108866T patent/DE60108866T2/de not_active Expired - Lifetime
- 2001-07-10 EP EP01202654A patent/EP1289122B1/de not_active Expired - Lifetime
- 2001-07-10 AT AT01202654T patent/ATE289128T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1289122B1 (de) | 2005-02-09 |
EP1289122A1 (de) | 2003-03-05 |
DE60108866D1 (de) | 2005-03-17 |
DE60108866T2 (de) | 2006-01-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |