1-Bit Reconfigurable Unit Cell for Programable Transmit-Array Lens in C-Band

An electronically reconfigurable unit cell with 1-bit phase resolution (0°/180°) is presented for programable transmit-array lens (TAL) in C-band. The I-bit phase resolution is obtained by using two PIN diodes integrated in the transmitting layer of the unit cell. The simulated results verify that the proposed unit can achieve good 1-bit phase tuning, with minimum insertion loss of 0.2 dB and 2-dB transmission bandwidth of about 10%.