An evolved design of a Zero Bias broadband microstrip Power Limiter

In this paper, a new broadband microwave microstrip power limiter is designed and validated into simulation by using ADS (Advanced Design System) from Agilent technologies. The Power Limiter is based on microstrip technology and Zero Bias commercial Schottky diodes HSMS286x associated as a bridge rectifier. The circuit is validated in two steps. The first and basic circuit is formed from one bridge. The second circuit is obtained by concatenating two basic circuits. This circuit shows a quasi ideal power limiter characteristics and it is validated with a threshold input value of 5 dBm up to 30dBm for the maximum input power.