Tri-band, Dual-polarized Antenna with Shared Aperture for TT&C and Data Transmission

In consideration of the application background of deep space detection and data transmission, this paper proposes a dual-polarization antenna working at X/Ku/Ka band. Three elements resonating at different frequency points are innovatively interleaved, covering the usually used bands of TT&C (Tracing, Telemetry and Command) and Data Transmission and sharing with the same aperture. The antenna volume is only $65\text{mm}\times 65\text{mm}\times 1.3\text{mm}$. Compared with the traditional array, the proposed antenna has the advantages of low-profile and high integration. The antenna has good performance over the working bands, which has potential in the synthetic aperture radar applications.