| Summary: | In this paper, a wideband multilayer transmitarray antenna is designed for Ku frequency band. The unit cell is designed at 12GHz using frequency selective surface structure. A new double square ring with center patch based multilayer unit cell has been designed and simulated. Then, the effect of substrate thickness variation on transmission coefficient magnitude and phase range is discussed. In the final design, the horn antenna designed at X-band is used as a feed source for transmitarray antenna. The simulation results show a wide impedance bandwidth from 10 to 13GHz. Besides, a wider gain bandwidth of 1.975GHz with a peak gain of 19dB is also achieved. All simulation results have been verified by the measurement. The proposed transmitarray design will find applications in high gain, directional and low profile antennas for X-band communication systems.
|
|---|