Four-arm helical antenna

Abstract

A four-arm helical antenna is provided, including: a metal top surface; four groups of helical antennas connected to the metal top surface to constitute a hollow cylinder, wherein any group of helical antennas comprises an antenna main arm and an antenna branch aria connected to each other, and the antenna main arm comprises a first bending portion arranged on a side surface of the hollow cylinder and a second bending portion arranged on a top surface of the hollow cylinder, and the antenna branch arm comprises a third bending portion arranged on the side surface of the hollow cylinder. The whole four-arm helical antenna is easy to adjust, and the antenna size can be adjusted flexibly according to installation requirements, and it's more suitable for miniaturization application requirements of the four-arm helical antenna.

Dependencies are inferred from the claim text.