Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Design and experimental study of superconducting left-handed
  transmission lines with tunable dispersion and improved impedance match   We continue detailed study of microwave properties of a superconducting
left-handed tunable CPW transmission line (LHTL). The line consists of a
central conductor, loaded with series of Josephson junctions as fixed
inductors; the line is shunted with SQUIDs as tunable inductors. The inductance
of the SQUIDs is varied in the range of 0.08-0.5 nH by applying an external dc
magnetic field. The circuit is designed to have left- and right-handed
transmission bands separated by a variable rejection band. At zero magnetic
field, we observed only one pass-band between 8 and 10 GHz within the frequency
range of 8-12 GHz. The rejection band is anticipated to appear between 10 GHz
and 11 GHz by design, and it has been detected in our previous work. To solve
the problem of standing waves and RF leak in measurements of our experimental
20-cell LHTL, we have designed a high-ratio (5-50 Ohm) wideband (8-11 GHz)
impedance transformer integrated at the chip, along with improved sample
holder. The experimental data are compared with numerical simulations.

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The categories of this paper are: q-bio
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: hep-th