bifilar planar antenna broadside and its application to air radars

A two-wire planar antenna broadside is described having the advantage of a wide frequency band. To obtain a phase center the position of which varies with the use frequency of the antenna, the latter comprises two symmetrical conductive lines each having N folds forming part of a determined value of angle whose apex coincides with the feeding point of the lines, with one line having a change in its electrical length with respect to each other, at the folds. Application to all electromagnetic transmission equipment. (CF DRAWING IN BOPI)