@article {20_TAP_EDUARDO_PABLO_BOWTIE_UNITARIO, title = {Bow-Tie-Shaped Radiating Element for Single and Dual Circular Polarization}, journal = {IEEE Transactions on Antennas and Propagation}, volume = {68}, number = {2}, year = {2020}, month = {Feb}, pages = {754-764}, keywords = {Antennas, Aperture antennas, bow-tie rotator, orthogonal polarizations}, issn = {1558-2221}, doi = {10.1109/TAP.2019.2943357}, author = {E Garcia-Marin and J L Masa-Campos and P Sanchez-Olivares and J A Ruiz-Cruz} } @conference {20_EUCAP2020_ARRAY_DUAL_BOWTIE_EDUARDO, title = {Dual Circularly Polarized Waveguide Array Antenna Formed by Full-Metallic Bow-tie Radiating Cavities}, booktitle = {2020 14th European Conference on Antennas and Propagation (EuCAP)}, year = {2020}, month = {March}, pages = {1-5}, abstract = {A full-metallic dual circularly polarized antenna based on an array of bow-tie shaped radiating elements is presented in this contribution. The radiating element, formed by a bow-tie shaped cavity, can generate dual circular polarization. It is fed by a square waveguide path that supports the two degenerate modes TE10 and TE01. The excitation of the TE10 mode in the input port generates left-hand circular polarization while the TE01 mode generates right-hand circular polarization. Furthermore, a dual circularly polarized array antenna formed by bow-tie radiating elements has been designed. The two degenerate modes TE10 and TE01 are supported by a four-way feeding network implemented in square waveguide technology. Both the single radiating element and the dual circularly polarized array have been fabricated by CNC milling techniques. A pure circular polarization performance, high gain or high efficiency have been obtained, experimentally validating the dual circularly polarized bow-tie element in an array configuration.}, keywords = {antenna diversity, Aperture antennas, Dual-polarized antennas, waveguide arrays}, doi = {10.23919/EuCAP48036.2020.9135228}, author = {E Garcia-Marin and P Sanchez-Olivares and J L Masa-Campos and J A Ruiz-Cruz and J Herranz-Alpanseque} } @article {18_AWPL_EDUARDO-GARCIA_EVALUATION_ADD_MANUF, title = {Evaluation of Additive Manufacturing Techniques Applied to Ku-Band Multilayer Corporate Waveguide Antennas}, journal = {IEEE Antennas and Wireless Propagation Letters}, volume = {17}, number = {11}, year = {2018}, month = {Nov}, pages = {2114-2118}, keywords = {additive manufacturing techniques, Antenna arrays, antenna feeds, antenna layers, antenna prototypes, Aperture antennas, axial ratio, conventional milling, corporate-fed waveguide array antenna, digital communication, direct broadcasting by satellite, direct metal laser sintering, DMLS antenna, electrical performance, end-user digital broadcast satellite communications, gain ratio, impedance matching, intricate multilayer structure, Ku-band multilayer corporate waveguide antennas, laser sintering, layered manufacturing, Metals, Milling, multilayer structure, multilayers, Planar arrays, prototypes, rapid prototyping (industrial), reference prototype, reliability, satellite antennas, single block fabrication, slot antenna arrays, stereolithography, Three-dimensional printing, waveguide antenna implementation}, issn = {1536-1225}, doi = {10.1109/LAWP.2018.2866631}, author = {E Garcia-Marin and J L Masa-Campos and P Sanchez-Olivares and J A Ruiz-Cruz} }