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This paper includes two contributions. First, it proves that the series and shunt radiation components, corresponding to longitudinal and transversal electric fields, respectively, are always in phase quadrature in axially asymmetric periodic leaky-wave antennas (LWAs), so that these antennas are inherently elliptically polarized. This fact is theoretically proven and experimentally illustrated by...
This paper presents a novel series-fed patch leaky-wave antenna (LWA) and furthermore demonstrates optimization strategies for achieving efficient broadside radiation. The proposed LWA is based on the concept of a proximity coupled microstrip patch antenna. Here, two feeding lines from both sides couple capacitively to the microstrip patch edges to form a unit cell element of the LWA. This capacitively-coupled...
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