EP 1145422 A4 20021002 - ADJUSTABLE BALANCED MODULATOR
Title (en)
ADJUSTABLE BALANCED MODULATOR
Title (de)
EINSTELLBARER GEGENTAKTMODULATOR
Title (fr)
MODULATEUR EQUILIBRE REGLABLE
Publication
Application
Priority
- US 9926306 W 19991109
- US 18821698 A 19981109
Abstract (en)
[origin: WO0028657A1] A first non-linear device (410) receives an RF input signal and an in-phase LO signal to produce a first mixed signal. A second non-linear device (412) receives an RF input signal and an out-of-phase LO signal to produce a second mixed signal. A summer (450) sums the two mixed signals to produce an output signal including sum and difference product terms and a suppressed RF input term. An adjustable phase corrector (414) can be used to adjust the RF input signals to the non-linear devices (410, 412) to be substantially in-phase to more effectively suppress an original RF input signal in the output signal.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H03D 7/1441 (2013.01); H03D 7/1458 (2013.01); H03D 7/1491 (2013.01); H04B 1/26 (2013.01); H03D 2200/0023 (2013.01); H03D 2200/0043 (2013.01)
Citation (search report)
- [X] US 4658440 A 19870414 - PAVIO ANTHONY M [US], et al
- [X] US 4308473 A 19811229 - CARNES IRVEN S
- [A] US 5826183 A 19981020 - APEL THOMAS R [US]
- [A] US 5153469 A 19921006 - PETTED BRIAN E [US], et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 8, no. 250 (E - 279)<1687> 16 November 1984 (1984-11-16)
- [PX] J. CARR: "RF MIXERS", ELECTRONICS WORLD RF DESIGN, 1 May 1999 (1999-05-01), pages 379 - 384, XP000913263
- See references of WO 0028657A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0028657 A1 20000518; WO 0028657 A9 20000928; AU 1611100 A 20000529; EP 1145422 A1 20011017; EP 1145422 A4 20021002
DOCDB simple family (application)
US 9926306 W 19991109; AU 1611100 A 19991109; EP 99958825 A 19991109