Abstract
Phase shifters are considered as the most vital subsystem for an antenna in any transceivers or RADARs. As the name suggests that, these components provide phase shift for the input signal, with respect to the reference signal at its output without any loss or modifications in the amplitude of input. In this work, an attempt has been made to design a 90⁰ phase shifter based on switched line type. The phase shifter is designed to implement on a microstrip circuit type. The frequency considered for the operation is 1 GHz. Agilent’s ADS (Advanced Design Simulation) software tool was used for designing and simulating the switched line phase shifter. The ADS software is widely used for designing and the simulation of microwave circuits and its components. Initially the circuit was designed with ideal switch models, which are readily available in ADS. Then independent single pole double throw switches were designed and simulated again. Parameters like return loss and insertion loss were considered as main parameters and then the designs were optimized to achieve the best possible return loss and insertion loss.
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