Design of Nx1 Modified Rectangular Loop Array Antenna for Radar Application

Jang, Jae-Su; Ko, Jin-Hyun; Ha, Jae-Kwon; Kim, Tae-Hyun; Park, Dong-Chul; Kim, Chan-Hong

Journal of the Korea Institute of Military Science and Technology 2006;9(1):144-151.

Jae-Su Jang, Jin-Hyun Ko, Jae-Kwon Ha, Tae-Hyun Kim, Dong-Chul Park, Chan-Hong Kim

¹Bluewavetel
²Chungnam National University
³

레이더용 Nxl 변형 사각 루프 배열 안테나 설계

장재수, 고진현, 하재권, 김태현, 박동철, 김찬흥

¹블루웨이브텔(주)
²충남대학교
³국방과학연구소

Abstract

A rectangular loop antenna for S-band radar is proposed. The proposed loop antenna is the modified type of folded monopole antenna. The feeding line is coplanar stripline with $180^{circ}$ phase difference for operating in odd mode. The proposed antenna showed return loss of -15.57dB at the center frequency and bandwidth of about 790MHz (> 25%) under the condition of VSWR < 2. The gains of single, 1x2, and 1x4 array loop antennas are 4.3, 7.0, and 10.2dBi, respectively.

Key Words: Loop Antenna, Folded Monopole, Stripline, Odd Mode Feeding Line