EP 1342317 A1 20030910 - TRANSVERSALLY COUPLED RESONATOR FILTER
Title (en)
TRANSVERSALLY COUPLED RESONATOR FILTER
Title (de)
TRANSVERSAL GEKOPPELTES RESONATORFILTER
Title (fr)
FILTRE A RESONATEURS A COUPLAGE TRANSVERSAL
Publication
Application
Priority
- DE 0104676 W 20011210
- DE 10062847 A 20001211
Abstract (en)
[origin: DE10062847C1] The filter has a piezoelectric substrate (1) provided with a number of single gate resonator structures (2,3) next to one another, provided by 2 strip reflectors (22,23; 32,33), enclosing a planar hollow space, joined together by short-circuit strips (222,223,232,233,322,332) between the reflector strips (221,231,321,331) and an interdigital transducer (21,31) within the planar hollow space. At least one single gate resonator structure has a different ratio between the width and the relative spacing of the fingers of the interdigital transducer and a different ratio between the width and relative spacing of the reflector strips.
IPC 1-7
IPC 8 full level
H03H 9/145 (2006.01); H03H 9/64 (2006.01)
CPC (source: EP KR US)
H03H 9/6433 (2013.01 - EP KR US); H03H 9/6463 (2013.01 - EP KR US); H03H 9/643 (2013.01 - KR)
Citation (search report)
See references of WO 0249212A1
Designated contracting state (EPC)
AT BE DE FR
DOCDB simple family (publication)
DE 10062847 C1 20020523; EP 1342317 A1 20030910; JP 2004516703 A 20040603; KR 100792050 B1 20080104; KR 20020074512 A 20020930; US 2003011279 A1 20030116; US 6762534 B2 20040713; WO 0249212 A1 20020620
DOCDB simple family (application)
DE 10062847 A 20001211; DE 0104676 W 20011210; EP 01984707 A 20011210; JP 2002550402 A 20011210; KR 20027010259 A 20020809; US 20330802 A 20020806