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Polyimide core 3D rectangular micro coaxial transmission lines
Author(s) -
Natarajan Saravana P.,
Hoff Andrew M.,
Weller Thomas M.
Publication year - 2010
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.25212
Subject(s) - polyimide , coaxial , microwave , fabrication , transmission line , materials science , electric power transmission , optoelectronics , line (geometry) , core (optical fiber) , coupling (piping) , electrical engineering , engineering , composite material , telecommunications , layer (electronics) , medicine , alternative medicine , geometry , mathematics , pathology
This article introduces a 20‐μm tall, 75‐μm wide rectangular polyimide core micro coaxial transmission line that can be realized using a simplified fabrication procedure. Measurements of a 4‐bend, meandered micro coaxial line demonstrate an 8% increase in the insertion loss and a 2% variation in the phase compared with a straight line of equivalent length. Cross‐coupling below 30 dB up to 65 GHz has been measured between two micro coaxial lines separated by 175 μm. These properties make the structures as useful building blocks for highly miniaturized and integrated microwave circuitry. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1291–1293, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25212