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A miniaturized frequency‐compensated six‐port junction using mhmic technology
Author(s) -
Ghannouchi Fadhel M.,
Maurin David,
Cuhaci Michel,
Bosisio Renato G.
Publication year - 1993
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.4650061003
Subject(s) - attenuator (electronics) , monolithic microwave integrated circuit , electrical engineering , microwave , power dividers and directional couplers , port (circuit theory) , bandwidth (computing) , engineering , hybrid coupler , frequency band , electronic engineering , telecommunications , physics , optics , attenuation , amplifier
CAD of a six‐port junction using miniature hybrid microwave‐integrated circuit technology (MHMIC) is presented. Frequency compensation of the q/s points is introduced and studied. The design is suited for use in swept frequency measurements covering a relatively wide frequency band. The junction incorporates three branch‐line couplers, an edge‐line coupler, a Wilkinson power divider, and a 3‐dB attenuator. The physical dimensions of the junction are 2 m × 1.5 cm. The practical operating frequency of the six‐port junction is measured to be 6–12 GHz in spite of a 3‐dB bandwidth limitation of about 20% for the branch line couplers. Some interesting applications of MHMIC/MMIC six‐port junctions are suggested. © 1993 John Wiley & Sons, Inc.