EP 1218963 A1 20020703 - METHOD FOR BALANCING THE BANDWIDTH OF A DUAL-MODE FILTER
Title (en)
METHOD FOR BALANCING THE BANDWIDTH OF A DUAL-MODE FILTER
Title (de)
VERFAHREN ZUM ABGLEICHEN DER BANDBREITE EINES DUAL-MODE FILTERS
Title (fr)
PROCEDE POUR EGALISER LA BANDE PASSANTE D'UN FILTRE BIMODE
Publication
Application
Priority
- DE 19943958 A 19990914
- IB 0001361 W 20000912
Abstract (en)
[origin: DE19943958A1] The invention relates to a method for balancing the bandwidth of a dual-mode filter, consisting of a ring resonator (1) produced by microstrip technology. The method is characterised in that the strip material is removed (1.1, 1.2, 1.3, 1.4, 2.1, 2.2, 2.3, 2.4) in one or more places (x) on the ring resonator (1), where the first of the two modes of the ring resonator (1) has a maximum current intensity and in one or more places (o) on said ring resonator, where the second mode has a maximum current intensity.
IPC 1-7
IPC 8 full level
H01P 7/08 (2006.01)
CPC (source: EP US)
H01P 1/2039 (2013.01 - EP US); H01P 7/082 (2013.01 - EP US)
Citation (search report)
See references of WO 0120711A1
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)
DE 19943958 A1 20010315; AU 7306200 A 20010417; CN 1264248 C 20060712; CN 1390371 A 20030108; EP 1218963 A1 20020703; NO 20021286 D0 20020314; NO 20021286 L 20020514; US 6686816 B1 20040203; WO 0120711 A1 20010322
DOCDB simple family (application)
DE 19943958 A 19990914; AU 7306200 A 20000912; CN 00815662 A 20000912; EP 00960907 A 20000912; IB 0001361 W 20000912; NO 20021286 A 20020314; US 8836702 A 20020807