Handheld Quad Antenna With Reinforced Mechanical Characteristics

Authors: Tomislav Baric, Hrvoje Glavas, Zeljko Hederic

Company/ Institution: Faculty of Electrical Engineering, Computer Science and Information Technology Osijek (FERIT Osijek)

Country: Croatia

e-mail: tomislav.baric@ferit.hr

web: https://www.ferit.unios.hr

An important device in radio-goniometry, i.e. triangulation when determining the position of radio transmitters, is a directional receiving antenna. In order to minimize the error in determining the position of the transmitter, the antenna should be as directional as possible. If the operator who performs the triangulation changes his locations while walking, then the antenna should also be relatively light. Hand-held portable antennas are exposed to considerable mechanical stress and accidental impacts. Therefore, they must have a mechanically reinforced construction. Despite the excellent directivity of Quad antennas, the construction solutions used in their production so far did not result in adequate mechanical consistency and were not used as hand-held portable antennas. In order to significantly improve the mechanical resistance of the hand-held Quad antenna to stress and accidental impacts, a hand-held Quad antenna with a reinforced mechanical construction was designed and built. A significant improvement in mechanical resistance to stress and accidental impacts was achieved by using aluminium L profiles for making antenna elements (reflectors, drivers and directors) and by using PVC L profiles for antenna element supports (console beams).