A 38-GHz integrated uniplanar subsystem for high-speed wireless broad-band multimedia systems

This paper outlines the high flexibility of the uniplanar technology to design complex multifunction subsystems. Furthermore, a design procedure based on a subsystem repartition into elementary blocks and a very simple electrical modeling is proposed and applied to a uniplanar biphase (0/spl deg/-18...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1999-06, Vol.47 (6), p.935-942
Main Authors: Hettak, K., Delisle, G.Y., Talbi, L.
Format: Article
Language:English
Subjects:
Communication systems
Computing time
Design engineering
Devices
Dielectric constant
Dielectric devices
Dielectric substrates
Digital communication
Digital modulation
Gallium arsenide
Gallium arsenides
Mathematical models
Millimeter wave circuits
Millimeter wave communication
Millimeter wave technology
Wideband
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Summary:This paper outlines the high flexibility of the uniplanar technology to design complex multifunction subsystems. Furthermore, a design procedure based on a subsystem repartition into elementary blocks and a very simple electrical modeling is proposed and applied to a uniplanar biphase (0/spl deg/-180/spl deg/) modulator/mixer, which is intended to be used as building block for wideband digital communication systems at 38 GHz. This subsystem is implemented on a high dielectric-constant substrate (/spl epsiv//sub r/=9.9), which is close to the dielectric constant of GaAs and demonstrates the feasibility of integration of such a device structure into monolithic circuits. This approach has been initially validated with experiments on a subsystem up to 20 GHz and preliminary results demonstrate the validity of this subsystem design procedure at millimeter-wave frequencies. Theoretical field calculation methods are combined with conventional transmission-line and computer-aided design calculations to analysis the critical parts of the subsystem and the integral-equation approach is used for efficiency design.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.769329