Design of conformal aperture coupled microstrip patch antenna on cylindrical bodies with circular polarization

In this paper, circularly polarized aperture coupled rectangular microstrip patch antenna for X-band application is proposed. Whenever planar antenna is conformed to cylindrical surface, antenna characteristics such as circular polarization gets disturbed. Proposed antenna design is printed on polyimide $(\varepsilon_{r}=3.5)$ substrate separated by cross slotted ground plane. The conformal antenna design is simulated in CST microwave studio and is under fabrication.