Single-Feed Multibeam Conformal Transmitarrays With Phase and Amplitude Modulations

Single-feed multibeam conformal transmitarrays using a superposition method are presented in this letter. The arrays consist of ultrathin Huygens elements with independent amplitude and phase manipulations. Three cylindrical conformal transmitarrays with dual-beam radiation patterns are designed at...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2022-08, Vol.21 (8), p.1669-1673
Main Authors: Song, Li-Zhao, Wang, Xuan, Qin, Pei-Yuan
Format: Article
Language:English
Subjects:
Amplitudes
Antenna radiation patterns
Conformal antennas
Feeds
Frequency modulation
multibeam
Phase modulation
Phased arrays
Surface impedance
transmitarray
Transmitting antennas
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Summary:Single-feed multibeam conformal transmitarrays using a superposition method are presented in this letter. The arrays consist of ultrathin Huygens elements with independent amplitude and phase manipulations. Three cylindrical conformal transmitarrays with dual-beam radiation patterns are designed at 10 GHz, producing dual beams at ±30°, +30°, and −20°, +30° and −10°, respectively. As an experimental validation, the prototype with symmetrical dual beams is fabricated and measured. Two beams at +29° and −28° along the H -plane are achieved with a measured 18.29 dBi peak gain. The gain difference between the two beams is 0.13 dB. Good agreement between simulation and measurement is observed.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2022.3177402