Hyper-wideband four-arm antenna

An antenna, composed of low-profile four arms, is investigated. The analysis shows that bending the arms makes the VSWR value small at low frequencies. It also shows that the meandering cells introduced to each arm contribute to a decrease in the lower band-edge frequency. Thus, the investigated antenna operates across a frequency region of 2.88 GHz to 50 GHz for a VSWR = 2 criterion. The radiation pattern and gain are also investigated.