US 12,249,766 B2
Wide bandwidth dual polarized array antenna using orthogonal feeding technique
Tien Manh Nguyen, Ha Noi (VN); Ngoc Anh Trinh, Thanh Hoa (VN); Cong Kien Dinh, Ha Noi (VN); and Manh Linh Nguyen, Ha Noi (VN)
Assigned to VIETTEL GROUP, Ha Noi (VN)
Filed by VIETTEL GROUP, Ha Noi (VN)
Filed on Nov. 30, 2022, as Appl. No. 18/071,736.
Claims priority of application No. 1-2021-07685 (VN), filed on Nov. 30, 2021.
Prior Publication US 2023/0170625 A1, Jun. 1, 2023
Int. Cl. H01Q 21/00 (2006.01); H01Q 5/28 (2015.01); H01Q 21/26 (2006.01)
CPC H01Q 21/0075 (2013.01) [H01Q 5/28 (2015.01); H01Q 21/26 (2013.01)] 1 Claim
OG exemplary drawing
 
1. An array antenna with an orthogonal feeding structure, comprising:
sixteen antenna elements (1), each of which is configured such that: a radiator has four identical thin copper petals printed on a Rogers RT/Duroid 5880 tablet with a thickness of 0.508 mm; a high-performance balun made of four Rogers 4350B stem boards with a thickness of 0.508 mm;
the orthogonal feeding structure (2) connects a stripline of a feeding network (3) to a microstrip line of the high-performance balun integrated in each of the antenna elements;
the feeding network (3) is a printed circuit board with the stripline sandwiched between two 0.508 mm-thickness Rogers RT/Duroid 5880 tablets, the feeding network has two ground planes that are a conducting top and a bottom layers, inner striplines of the feeding network form two power dividers/combiners with a center symmetry axis, including sixteen inputs and an output.