Abstract
This study presents a new reconfigurable 4 × 4 multi-port amplifier (MPA) configured by switchable matrices. The proposed structure adopts two 4 × 4 switchable matrices consisting of four unit-switching mode hybrid matrix (SMHM) where each SMHM is implemented with two 3 dB couplers and two single pole four throw (SP4T) switches. Comparing with previously reported MPA structures with fixed input and output relations which are exposed to performance degradation by power amplifier (PA) failure, the proposed structure can flexibly adjust signal paths. Also, the number of PAs used for signal amplification can be adjusted by controlling proper modes of SP4Ts in switchable matrices. For 4 × 4 structure, input signal can be amplified by a single PA, two PAs or all four PAs and then be outputted to only one port, two ports or all four ports. Thus, the proposed MPA structure can effectively improve system flexibility as well as reliability in case of PA failure. For the ease of verification, the proposed structure is tested at ISM band of 902–928 MHz.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
