Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long Slot Ridged SIW Leaky Wave Antenna Design Using Transverse
  Equivalent Technique   A novel ridged SIW leaky wave antenna (LWA) with controllable side lobe level
and low cross-polarization is proposed and fabricated. Longitudinally
continuous asymmetric ridges beside SIW sidewalls provide an asymmetric field
distribution around the long slot centered on the upper plane of the structure,
in way that the slot can radiate. An accurate transverse equivalent network
analysis is presented for calculating the properties of the proposed LWA. The
wavenumbers of the leaky-mode are calculated theoretically and numerically. The
designed ridged SIW LWA shows a good SLL and cross polarization. Measurement
results are also consistent with the simulation results.

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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat