Title :
A novel directional coupler for PCB and LTCC applications
Author :
Sawicki, A. ; Sachse, K.
Author_Institution :
Ericsson AB, Stockholm, Sweden
Abstract :
A new coupled-line directional coupler, convenient for PCB and LTCC applications, is proposed. The coupler covers -10 dB to -2.7 dB coupling coefficient, being always theoretically compensated. The novel structure is not sensitive to lateral misalignment of conductive layers, and not sensitive to thickness and dielectric permittivity tolerances of applied dielectric substrates. Promising experimental results are presented.
Keywords :
ceramics; directional couplers; printed circuit accessories; LTCC; PCB; compensation; conductive layer misalignment; coupled-line directional coupler; coupling coefficient; dielectric substrate; permittivity; Coupling circuits; Dielectric materials; Dielectric substrates; Directional couplers; Impedance; Microwave circuits; Microwave technology; Nonhomogeneous media; Permittivity; Radio frequency;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1012315
