Inventor
LEE CHANG HWA
KR16 patents
⚠️ This page may combine multiple inventors who share the name “LEE CHANG HWA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOREA ELECTRONICS TELECOMM
11 patentsUS6130587AOct 10, 2000
Microstripline/stripline isolator/circulator having a propeller resonator
KOREA ELECTRONICS TELECOMM19 citations81
US6597263B2Jul 22, 2003
Dielectric filter having notch pattern
KOREA ELECTRONICS TELECOMM10 citations72
US6373352B1Apr 16, 2002
Duplexer with stepped impedance resonators
KOREA ELECTRONICS TELECOMM9 citations72
US6060965AMay 9, 2000
Dielectric resonator and filter including capacitor electrodes on a non-conductive surface
KOREA ELECTRONICS TELECOMM14 citations72
US5886986AMar 23, 1999
Duplexer having dual coupled line characteristics
KOREA ELECTRONICS TELECOMM16 citations72
US6400239B1Jun 4, 2002
Microwave filter with a movable shield having alignment windows
KOREA ELECTRONICS TELECOMM8 citations71
US6356165B1Mar 12, 2002
Magnetostatic wave devices for high frequency signal processing
KOREA ELECTRONICS TELECOMM12 citations68
US6054909AApr 25, 2000
Microwave filter with U-type resonator
KOREA ELECTRONICS TELECOMM6 citations62
US6150906ANov 21, 2000
HF filter using resonators having convex-concave structure
KOREA ELECTRONICS TELECOMM6 citations60
US6326867B1Dec 4, 2001
Dielectric filter having resonators arranged in series
KOREA ELECTRONICS TELECOMM4 citations57
US5936489AAug 10, 1999
Dielectric microwave filter
KOREA ELECTRONICS TELECOMM1 citations52