CA2160503C - Modulateur vectoriel a large bande - Google Patents
Modulateur vectoriel a large bande Download PDFInfo
- Publication number
- CA2160503C CA2160503C CA002160503A CA2160503A CA2160503C CA 2160503 C CA2160503 C CA 2160503C CA 002160503 A CA002160503 A CA 002160503A CA 2160503 A CA2160503 A CA 2160503A CA 2160503 C CA2160503 C CA 2160503C
- Authority
- CA
- Canada
- Prior art keywords
- modulator
- input signals
- local oscillator
- qpsk
- outputs
- 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.)
- Expired - Lifetime
Links
- 239000013598 vector Substances 0.000 title claims abstract description 56
- 230000000737 periodic effect Effects 0.000 claims abstract description 30
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims abstract description 22
- 238000001228 spectrum Methods 0.000 claims description 4
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002160503A CA2160503C (fr) | 1995-10-13 | 1995-10-13 | Modulateur vectoriel a large bande |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002160503A CA2160503C (fr) | 1995-10-13 | 1995-10-13 | Modulateur vectoriel a large bande |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2160503A1 CA2160503A1 (fr) | 1997-04-14 |
| CA2160503C true CA2160503C (fr) | 2001-05-15 |
Family
ID=4156763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002160503A Expired - Lifetime CA2160503C (fr) | 1995-10-13 | 1995-10-13 | Modulateur vectoriel a large bande |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2160503C (fr) |
-
1995
- 1995-10-13 CA CA002160503A patent/CA2160503C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2160503A1 (fr) | 1997-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5463355A (en) | Wideband vector modulator which combines outputs of a plurality of QPSK modulators | |
| US5784412A (en) | Transmitter and method for transmitting a modulated wave with variable envelope | |
| US5838210A (en) | Method and apparatus for generating a modulated signal | |
| US5903609A (en) | Transmission system using transmitter with phase modulator and frequency multiplier | |
| US5705959A (en) | High efficiency low distortion amplification | |
| CA2224572C (fr) | Radio a puissance de crete et une modulation efficace de largeur de bande | |
| US5881375A (en) | Paging transmitter having broadband exciter using an intermediate frequency above the transmit frequency | |
| US5675285A (en) | Multichannel predistortion linearizer for multiple amplifiers with multiple antennas | |
| US5867071A (en) | High power transmitter employing a high power QAM modulator | |
| CA2160592A1 (fr) | Emetteur a modulateur symetrique | |
| US6560296B1 (en) | Method and apparatus for modulating digital data | |
| US5329259A (en) | Efficient amplitude/phase modulation amplifier | |
| US5717719A (en) | Digital radio transmission-reception apparatus | |
| EP0768782A1 (fr) | Modulateur vectoriel micro-ondes à large bande | |
| CA2160503C (fr) | Modulateur vectoriel a large bande | |
| JPH0918536A (ja) | 変調増幅方式 | |
| US3141134A (en) | Distortion compensation system, for a power frequency amplifier system having transport lags, utilizing heterodyne feedback | |
| JP3348676B2 (ja) | Ofdm変調器及びこれを用いたデジタル放送装置 | |
| AU723589B2 (en) | Wideband vector modulator | |
| HK1000653A (en) | Wide-band microwave vector modulator | |
| KR100390609B1 (ko) | 광대역벡터변조기 | |
| JPH03101447A (ja) | 送信装置 | |
| US6044117A (en) | Peak clipping circuit provided in a quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals | |
| US20230163790A1 (en) | Digital radio frequency transmitter and wireless communication device including the same | |
| US5502745A (en) | BPSK modulator for a digital signal transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20151013 |