An active antenna with variable polarisation synthesis

摘要: The invention relates to a UHF transmission/reception (T/R) circuit for an array antenna with polarisation synthesis, especially radar antenna. According the invention, required is obtained by applying two signals radiating element of antenna, on orthogonal access channels, having controllable phase shift between and channels operating simultaneously. In preferred embodiment, transmission are equipped power amplifiers which each amplify signal originating from in-phase divider or hybrid coupler, one bits, adds 0, 90 180@, allowing synthesis orthogonal, linear circular polarisations. according produced wholly partly in monolithic (MMIC) technology. also including T/R above characteristics.