A Compact Rx Antenna Integration for 3D Direction-Finding Passive Radar

• Published in: Journal of Electromagnetic Engineering and Science Vol. 19; no. 3; pp. 188 - 196
• Main Authors: Lee, Hojoo, Kim, Jaesik, Choi, Jaehoon
• Format: Journal Article
• Language: English
• Published: 한국전자파학회JEES 01.07.2019; The Korean Institute of Electromagnetic Engineering and Science; 한국전자파학회
• Subjects: Direction-Finding; Radar; Waveguide Slot Antenna; Yagi Antenna; 전자/정보통신공학; Direction-Finding; Waveguide Slot Antenna; Radar; Yagi Antenna
• ISSN: 2671-7255; 2234-8409; 2671-7263; 2234-8395
• DOI: 10.26866/jees.2019.19.3.188

A compact receiving (Rx) antenna integration for 3D direction-finding passive radar is proposed. The proposed antenna integration consists of two Yagi antennas and two waveguide slot antennas. The antennas are mounted on four sides of a parallelepiped polycarbonate module with the same type of antennas facing each other on the opposite sides of the module. The antenna is designed for a direction-finding radar system as an Rx terminal on an avionic vehicle with a separate Tx base station on the ground. The proposed antenna integration demonstrates a maximum return loss of 9.6 dB (voltage standing wave ratio 2:1) ranging from 9.7 to 10.2 GHz in the X band and has suitable radiation patterns for direction-finding system in both the xz and yz planes. In addition, the proposed antenna integration has the compact size and light gross weight of 37 mm × 46 mm × 50 mm and 97 g, respectively, making it suitable for application in an avionic system.