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Design of a K‐band reflectarray antenna using 15 × 15 double square ring elements printed on a single substrate and backed by a ground plane separated by an air layer is proposed. The double square ring element supplies a 530° dynamic range of the reflection phase variation, and the phasing curves are nearly linear. A prototype is manufactured and tested, and good agreements between simulation and...
A novel reflectarray antenna using double square rings elements is designed and analyzed. The reflection phase variation of the double square rings element, whose dynamic range can reach 530°, is discussed for exact design of the reflectarray antenna. The resulting antenna shows good performance in terms of gain and bandwidth. Beam scanning characteristic of a 60-element reflectarray antenna is examined...
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