Uniplanar Circuits with Lumped Elements (1/3)，(2/3)，(3/3)
Date Issued
2005-07-31
Date
2005-07-31
Author(s)
陳俊雄
DOI
932213E002021
Abstract
The purpose of this investigation is to
develop and study the uniplanar circuits with
lumped elements so as to establish the
key-component technologies for millimeter-wave
wireless communication systems. The goal is
to establish suitable equivalent circuit models for
practical design and associated fullwave
computer software for circuit simulation. In
this study, the uniplanar circuits with linear and nonlinear lumped elements are investigated in
detail. Specifically, several novel uniplanar
mixers and related components are proposed and
their properties are carefully examined, both
theoretically and experimentally.
In the first-year research, a fullwave
analysis model for uniplanar circuits with
lumped elements is proposed. The passive
distributed parts are analyzed by the
mixed-potential integral-equation based moment
method, and the connection between distributed
parts and lumped elements is treated by the
current-source port concept. In the first-year
study, the fullwave analysis model is tested by
applying it to the problems with chip capacitor,
spiral inductor, and active slot antenna.
In the second-year research, an extended
short-open calibration technique is proposed to
handle the multimode conversion phenomenon
associated with the uniplanar circuit
discontinuities. By combining this calibration
technique with the previously developed
fullwave analysis model, one can establish an
extended model to analyze both linear and
nonlinear circuits. Specifically, three basic
components of uniplanar mixer are analyzed and
designed by this extended model.
In the third-year research, the ultimate
target is to use the equivalent-circuit models and
fullwave computer software developed in the
past two years to implement the various
uniplanar circuits. Specifically, several novel
passive and active uniplanar mixers and related
components are proposed and their properties are
carefully examined, both theoretically and
experimentally.
Subjects
Uniplanar circuit
lumped element
mixer
Publisher
臺北市：國立臺灣大學電信工程學研究所
Type
report
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