TERAHERTZ-BANDWIDTH CHARACTERISTICS OF COPLANAR TRANSMISSION-LINES ON LOW PERMITTIVITY SUBSTRATES Academic Article

abstract

• Coplanar striplines and waveguides capable of supporting ultra-high-frequency pulses over many millimeters of propagation length have been fabricated on low-permittivity substrates, including a durable 1.4-/spl mu/m-thick membrane. These transmission lines were characterized using broadband pulses from a novel in situ optoelectronic test-signal generator together with an electro-optic probe tip and an optically-based sampling technique. Pulse-propagation characteristics for the coplanar lines on the low-permittivity substrates have been compared in both the time and frequency domains with the transmission behavior of lines on GaAs substrates. A semi-empirical model has also been used to simulate the experimental results with good agreement, helping to indicate the origin of the distortion mechanisms involved. In addition, for the coplanar waveguide structures, waveforms corresponding to the even and odd modes have been individually resolved in the time domain for lines fabricated on the GaAs and membrane substrates.<>

authors

• Katehi, Linda

published proceedings

• IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES

altmetric score

• 6

author list (cited authors)

• CHENG, H. J., WHITAKER, J. F., WELLER, T. M., & KATEHI, L.

citation count

• 45

complete list of authors

• CHENG, HJ||WHITAKER, JF||WELLER, TM||KATEHI, LPB

publication date

• January 1994

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Microwave Theory and Techniques  Journal

keywords

• 1.4 Micron
• Biomembranes
• Broadband Pulses
• Coplanar Transmission Lines
• Coplanar Waveguide Structures
• Coplanar Waveguides
• Cpw
• Distortion Mechanisms
• Durable Membrane
• Even Modes
• Gaas
• Gaas Substrates
• Gallium Arsenide
• Low Permittivity Substrates
• Membrane Substrates
• Membranes
• Odd Modes
• Optical Propagation
• Optical Pulse Generation
• Optical Pulses
• Optical Waveguides
• Optoelectronic Test-signal Generator
• Permittivity
• Pulse-propagation Characteristics
• Semi-empirical Model
• Strip Lines
• Stripline
• Substrates
• Terahertz-bandwidth Characteristics
• Testing
• Waveguide Theory

Digital Object Identifier (DOI)

• 10.1109/22.339773

start page

• 2399

end page

• 2406

volume

• 42

issue

• 12

URL

• http://dx.doi.org/10.1109/22.339773