EP 0057121 A3 19820811 - HIGH-FREQUENCY DUAL-BAND FEEDER AND ANTENNA INCORPORATING THE SAME
Title (en)
HIGH-FREQUENCY DUAL-BAND FEEDER AND ANTENNA INCORPORATING THE SAME
Publication
Application
Priority
FR 8101286 A 19810123
Abstract (en)
[origin: CA1176368A] A TWO-BAND MICROWAVE SOURCE AND AN ANTENNA EQUIPPED WITH SAID SOURCE A wide-band multimode microwave source for low-elevation tracking radar antennas consists of two independent multimode sources each capable of operating within a low-frequency band or a high-frequency band and mechanically coupled together by constructing the highfrequency-band source within the interior of an obstacle constituting the E-plane moder of the low-frequency-band source in order to ensure that the planes of polarization of the two sources are at right angles to each other. A lens which is transparent in the low-frequency band extends the Rayleigh zone of the high-frequency-band source to the interior of the Fraunhoffer zone of the low-frequency-band source.
IPC 1-7
IPC 8 full level
H01Q 5/00 (2006.01); H01Q 13/02 (2006.01); H01Q 19/08 (2006.01); H01Q 19/10 (2006.01); H01Q 25/04 (2006.01)
CPC (source: EP US)
H01Q 5/45 (2015.01 - EP US); H01Q 25/04 (2013.01 - EP US)
Citation (search report)
- [Y] US 4096482 A 19780620 - WALTERS GLENN A
- [Y] FR 2118848 A1 19720804 - THOMSON CSF
- [A] US 4220957 A 19800902 - BRITT POPE P [US]
- [A] US 3569973 A 19710309 - BRUMBAUGH CHARLES T JR, et al
- [A] DE 2626926 A1 19771229 - LICENTIA GMBH
- [A] US 3665481 A 19720523 - WOO KENNETH E
- [A] US 3495262 A 19700210 - CLARK ROBERT T
- [AD] EP 0035929 A1 19810916 - THOMSON CSF [FR]
- [AD] FR 2418551 A1 19790921 - THOMSON CSF [FR]
- [A] FREQUENZ, vol. 29, no. 7, juillet 1975, Berlin (DE) G. VON TRENTINI: "Ubersicht der heute in der Technik verwendeten stark buendelnden Mikrowellenantennen (Teil II)" Pages 192-199
- [AT] REVUE TECHNIQUE CFTH, vol.37, novembre 1962, PARIS (FR) S. DRABOWITCH: "Theorie et applications des antennes multimodes", pages 117-168
Designated contracting state (EPC)
AT BE CH DE GB IT LI NL SE
DOCDB simple family (publication)
EP 0057121 A2 19820804; EP 0057121 A3 19820811; EP 0057121 B1 19870415; AT E26628 T1 19870515; CA 1176368 A 19841016; DE 3276092 D1 19870521; DK 21482 A 19820724; FR 2498820 A1 19820730; FR 2498820 B1 19850104; JP S57142005 A 19820902; US 4489331 A 19841218
DOCDB simple family (application)
EP 82400050 A 19820112; AT 82400050 T 19820112; CA 394580 A 19820121; DE 3276092 T 19820112; DK 21482 A 19820119; FR 8101286 A 19810123; JP 873382 A 19820122; US 34158082 A 19820121