EP 0247157 A4 19880418 - ADAPTIVE IMPEDANCE MISMATCH DETECTOR SYSTEM.
Title (en)
ADAPTIVE IMPEDANCE MISMATCH DETECTOR SYSTEM.
Title (de)
FEHLANPASSUNGSDETEKTOR EINER IMPEDANZANPASSUNG.
Title (fr)
SYSTEME DE DETECTION D'INADAPTATIONS D'IMPEDANCE ADAPTATIF.
Publication
Application
Priority
- US 80083285 A 19851122
- US 80118185 A 19851122
Abstract (en)
[origin: WO8703378A1] An adaptive impedance mismatch detector system (10) for determining whether or not a particular load impedance (30) is matched or mismatched to the characteristic impedance of a transmission line (at 20). The detector system is capable of determining if a particular load impedance has a value outside of an impedance threshold circle (24) having a center (22) at a location other than at the center of the Smith Chart (Fig. 2). The system changes the radius and/or center of the threshold circle in response to changes in circuit operating conditions or parameters. This flexibility enables the detector to be more selective in determining improper load conditions.
IPC 1-7
IPC 8 full level
G01R 27/04 (2006.01); G01R 27/06 (2006.01); H03F 1/52 (2006.01); H03F 1/56 (2006.01); H03H 7/38 (2006.01)
CPC (source: EP KR)
G01R 27/00 (2013.01 - KR); G01R 27/06 (2013.01 - EP); H03F 1/52 (2013.01 - EP); H03F 1/565 (2013.01 - EP); H03H 7/38 (2013.01 - EP); H03F 2200/486 (2013.01 - EP); H03F 2200/78 (2013.01 - EP)
Citation (search report)
- [A] AU 521165 A
- [A] US 4350958 A 19820921 - PAGNAMENTA ANTONIO
- [AD] US 4493112 A 19850108 - BRUENE WARREN B [US]
- [AD] WO 8400258 A1 19840119 - MOTOROLA INC [US]
- See references of WO 8703378A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8703378 A1 19870604; CA 1261002 A 19890926; EP 0247157 A1 19871202; EP 0247157 A4 19880418; JP H0827309 B2 19960321; JP S63501447 A 19880602; KR 880700939 A 19880413
DOCDB simple family (application)
US 8602484 W 19861114; CA 522853 A 19861113; EP 86907199 A 19861114; JP 50618186 A 19861114; KR 870700636 A 19870722