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Compact and Wideband Correlator with Metamaterial Hybrid Rat-Race Coupler  

Kim, Yang-Hyun (Department of Information and Telecommunication Engineering, Soongsil University)
Seo, Chul-Hun (Department of Information and Telecommunication Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.46, no.2, 2009 , pp. 147-151 More about this Journal
Abstract
A wideband correlator, with 45% relative bandwidth is proposed at the frequency range of 3.1-5.1GHz. The structures of the correlator components such as the delay line and the Wilkinson power divider are designed to be realized in transmission line form using the Agilent's Advanced Design System (ADS). The correlator made by using three unique wideband 3-dB couplers, rat-race coupler and one 3-dB wilkinson power divider to reach the required bandwidth. The insertion loss, amplitude imbalance and phase imbalance between ports are presented. The proposed correlator makes compact size better than correlator of conventional structure.
Keywords
Correlator; Rat-Race Coupler; Hybrid Coupler; delay-lines; Wilkinson Power Divider;
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