The Electronical Design Of The High Gain And Low Side Lobe Millimeter Wave Antennas

Since the fact that the wavelength of millimeter wave is briefer, guidance accuracy is high. Same require of the antenna gain and beam breadth, the little millimeter wave aerial may obtain, Thereby may cause the radar bulk little、Weight is light。The millimeter wave aerial beam is narrow, Noise echo and effect that decreases the effect in multipath path may be abated to it, As a result the radar antigambling capability is powerful, To the noise immunity capacity of our side (Electromagnetism compatibility) With wholly shall obtain the improvement to the way the revising antijamming capability。Replace the now available microwave region radar in the way of the millimeter wave radar, It is the problem that radar designer over a long period of time need consider, But the small scale of millimeter-wave band inversion metamorphosis Ka Saigon’s match aerials also becomes one of main research task of aerial territory。The original is on the basis of tall effectiveness、Minor lobe lets drop Precipitous target demand of slope, and given room, Design one kind of little bulk of radar inversion metamorphosis Ka Saigon’s match aerials。That aerial adopts turning about the polarization technique, Used for removing pair keeping out of reflection utensil, Better resolve spear and shield between antenna efficiency and the side lobe, Except for have the good broadband property, Also obtain the high gain Low side lobe performance。The feed unit chooses the terse solos double model of one kind of composition to make a present of the source, Theory touch practical experience, That the design was come out finely make a present of the source shape, Obtain the directivity diagram by means of calculation。Detailed calculate to turn about various parameter of polarization aerial, Obtain the better performance experiments result。This the kind of shape aerial may be against the radar shroud in all in the way of the reflecting surface, Thereby decrease the leaking the loss of one tier of shroud。The radar goes through the outfield and adjust the big lake performance The jam of multiple objective selection with the resisted screen and so on much experiments queens, Feasible quality that was designed and well-developed quality were verified。...