Small dual-polarization broadband high-isolation antenna

• Main Authors: LI WENZHUO, FENG ZHIFANG, TANG WEISHENG, ZHANG YAN, ZHANG BOJUN, HE LIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2020
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention belongs to the technical field of antennas, and mainly relates to a small dual-polarization broadband high-isolation antenna. The antenna specifically comprises four radiation arms, fourbaluns, two feed sheets and a reflection cavity; the four radiation arms, the four baluns and the two feed sheets are arranged in the reflection cavity; the edge of each radiation arm is of a polygonal structure formed by overlapping the edges of three elliptic arcs and the rectangular edge; the upper end of each balun is connected with the corresponding radiation arm, and the lower end of each balun is connected with the reflection cavity; the four radiation arms and the baluns are distributed in an axial symmetry manner relative to the diagonal line of the reflection cavity; the two feed sheets are orthogonally coupled with each other; a physical gap is formed between the feed sheets and the baluns; physical slots are located on the inner sides of the baluns, and the impedance matchingis achieved by controlling