Electrically small half-loop for wideband HF on-the-move operation

Abstract

Design of an electrically small low profile on-the-move HF antenna with 24 kHz instantaneous impedance bandwidth and gain better than -25 dBi for near vertical communications is presented. The antenna is mounted on the Oshkosh M-ATV and operates from 2 to 10 MHz. The profile is 0.8 m (λ/190 at 2 MHz) above vehicle roof, the length is 3.6 m (λ/42) and the width is 2.3 m (λ/65). Shown computational study agrees well with measurements that will be shown later on.