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Antenna theory and design
10:30 Invited talk: Recent Advances in Conformal Transmitarrays
online, on-demand
Peiyuan Qin, Y. Jay Guo
University of Technology Sydney (Australia)
This talk will give an overview of research on conformal transmitarrays conducted in University of Technology Sydney, Australia. More specifically, it includes our latest progress in high efficiency conformal transmitarrays and multi-beam conformal transmitarrays.
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Wenzhong Lu, Xiao Chuan Wang, Yi Hui Lou
Huazhong University of Science and Technology (China)
With the rapid development of modern wireless communication systems, ceramic antennas have received increasing attention due to their miniaturization, high durability, high power capacity and high sensitivity. we presented a novel method for realizing flat Luneburg lenses for antenna applications. The method we described includes ceramic Stereolithography, metamaterial structure and optical coordinate transformation. We experimentally validate our design methodology by fabricating and characterizing a flat Luneburg lenses whose operation frequency is at Ku-band (12-18GHz) with antenna gains of 18dBi.
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Manuel Arrebola, Daniel R. Prado, Marcos R. Pino
Universidad de Oviedo (Spain)
This paper describes a technique for the design and optimization of wideband reflectarrays based on the generalized intersection approach and a direct layout optimization using a method of moments based on local periodicity. Results for two very large dual-linear reflectarrays for direct-to-home applications are provided and discussed. The first is a reflectarray working in a 15% bandwidth with European coverage. The second antenna provides coverage to South America in two frequency bands with very tight requirements.
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Manpreet Kaur, Hari Shankar Singh, Mayank Agarwal
Thapar Institute of Engineering and Technology (India)
A polarization reconfigurable patch antenna truncated at the corners has been presented in this paper. The proposed antenna is covering the sub-6GHz band (4.8-5GHz). In order to achieve reconfigurability, D-shaped slots have been cut in the ground plane and PIN diodes are inserted in each slot. The antenna is capable of switching between two polarization states i.e. linear polarization and circular polarization. Moreover, 3D radiation pattern of the design is also shown in order to check the pattern stability.
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