# Phase Shifter-Relaxed and Control-Relaxed Continuous Steering Multiple Beamforming 4 × 4 Butler Matrix Phased Array

> Research article (IEEE Transactions on Circuits and Systems I Regular Papers, 2020) · cited 60× · AI/ML

**Wikidata**: [openalex:W3044604501](https://www.wikidata.org/wiki/openalex:W3044604501)  
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