Bi-Directional True Time Delay Core Chip for Phased Array Radars

Due to less usage of the area and small power, Phased arrays are used extensively. To classify the direction of propagation and attain decent gain, beam steering is needed. Therefore, the main threat is the expanded size of the array for high power. To clarify the issues, the rising technology of True Time Delay can be used. In this paper, here research is being done to configure a unidirectional True Time Delay Core Chip in bidirectional mode by using SPDT switches such that it can be used in both Transmit and receive paths. The entire proposal is being supported by ADS (EM-co Simulation) and Cadence Allegro. As the Core Chip is unidirectional, two separate chips are to be needed for the transmitter and receiver differently. Therefore, this unidirectional Core Chip is configured into bidirectional so that with the help of one Core Chip only, one can achieve desired results. Moreover, this will result in more costsaving and reliability.