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Abstract: |
The ever
increasing demands for miniaturized microwave components
have imposed new challenges to circuit designers.
Recently, we investigated a new circuit scheme for
synthesizing artificial transmission line using
quasi-lumped elements. The proposed artificial line is
capable of significantly reducing the required physical
length while preserving the electrical properties of a
conventional transmission line. By utilizing the
proposed artificial transmission lines in either
microstrip form, stripline form, or coplanar waveguide
form, various microwave components or sub-systems like
quadrature hybrid, rat-race hybrid, Butler matrix,
broadside coupler, Marchand balun, doubly balanced
mixer, multiplexer, dual-mode bandpass filter, etc. have
been successfully realized and miniaturized. The
occupied sizes of these designs are merely 10~25% as
compared to the conventional designs. The circuit
configuration, design methodology, and performance will
be discussed throughout the lecture. |
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