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A microstrip coupler through a narrow slot in the common ground plane of a two‐sided microstrip circuit board
Author(s) -
Lin C. C.
Publication year - 1991
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650041210
Subject(s) - microstrip , ground plane , printed circuit board , extremely high frequency , materials science , electrical engineering , power (physics) , optoelectronics , electronic engineering , engineering , optics , telecommunications , physics , quantum mechanics , antenna (radio)
An empirical design of a microstrip coupler through a narrow slot in the common ground plane of a two‐sided microstrip circuit board is presented. The power transmission between a microstripline on a high‐permittivity ceramic substrate (ε r = 9.8) and one on a low‐permittivity Teflon‐based substrate (ε r = 2.2) is measured at near‐millimeter‐wave frequencies for a varying slot length. It is demonstrated that such a contactless transition can successfully be used with an acceptable loss in order to couple the power from one side to the other of a two‐sided microstrip circuit board.