EP 0228947 A1 19870715 - Superheterodyne receiver for two microwave signals with two opposite circular polarizations.
Title (en)
Superheterodyne receiver for two microwave signals with two opposite circular polarizations.
Title (de)
Superheterodynempfänger zweier Mikrowellensignale gegensinniger Zirkularpolarisation.
Title (fr)
Dispositif de réception, à guide d'onde et circuits superhétérodynes, de deux signaux hyperfréquences à polarisation de sens inverses.
Publication
Application
Priority
FR 8518255 A 19851210
Abstract (en)
Device for simultaneous reception of waves circularly polarised in opposite senses with waveguide means transforming the circularly polarised waves into linearly polarised waves of opposing senses or differing directions, and, for each linearly polarised wave, a circuit (231, 241) of the superheterodyne type. The two circuits (231, 241) comprise a common local oscillator (25). <IMAGE>
Abstract (fr)
Dispositif de réception simultanée d'ondes à polarisation circulaire en sens inverses avec des moyens à guide d'onde transformant les ondes à polarisation circulaire en ondes à polarisation rectiligne de sens opposés ou de directions différentes, et, pour chaque onde à polarisation rectiligne, un circuit (231, 241) du type superhétérodyne. Les deux circuits (231, 241) comportent un oscillateur local commun (25).
IPC 1-7
IPC 8 full level
H01P 1/17 (2006.01)
CPC (source: EP)
H01P 1/173 (2013.01)
Citation (search report)
- [Y] US 3092828 A 19630604 - ALLEN PHILIP J
- [Y] EP 0059927 A1 19820915 - ANT NACHRICHTENTECH [DE]
- [A] EP 0110324 A1 19840613 - TOKYO SHIBAURA ELECTRIC CO [JP]
- [A] EP 0131633 A1 19850123 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] US 4126835 A 19781121 - GOULD HARRY J
- [A] EP 0094047 A1 19831116 - GEN ELECTRIC [US]
- [A] US 3059186 A 19621016 - ALLEN PHILIP J
- [A] US 3955202 A 19760504 - YOUNG PAUL T K
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0228947 A1 19870715; EP 0228947 B1 19930811; DE 3688881 D1 19930916; DE 3688881 T2 19931125; FR 2591407 A1 19870612; FR 2591407 B1 19880805
DOCDB simple family (application)
EP 86402728 A 19861209; DE 3688881 T 19861209; FR 8518255 A 19851210