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Dual-Band Transmitarrays With Dual-Linear Polarization at Ka-Band

Abstract : Dual-band transmitarray antennas are demonstrated at Ka-band with the capability of forming independent linearly polarized beams with a given polarization in each frequency band, while sharing the same radiating aperture. The proposed three-layer unit-cell is based on identical narrow microstrip patches printed on both receiving and transmitting layers and connected by a metallized via hole. The metal layers are printed on two identical substrates bonded with a thin film, and the designed unit-cell exhibits a 180 degrees phase resolution (i.e., 1-b phase quantization). The dual-band dual-polarized property of the transmitarray is achieved by interleaving unit-cells operating in the down-link and up-link frequency bands. Four different prototypes are characterized to demonstrate the relevance of the proposed concepts. A good agreement is obtained between the radiation patterns, gain curves, and cross-polarization levels measured and computed in both frequency bands and polarizations.
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Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Monday, January 15, 2018 - 3:43:31 PM
Last modification on : Wednesday, April 27, 2022 - 4:29:12 AM



Kien T. Pham, Ronan Sauleau, Erwan Fourn, Fatimata Diaby, Antonio Clemente, et al.. Dual-Band Transmitarrays With Dual-Linear Polarization at Ka-Band. IEEE Transactions on Antennas and Propagation, 2017, 65 (12), pp.7009-7018. ⟨10.1109/TAP.2017.2762011⟩. ⟨hal-01684557⟩



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