Abstract
In this communication, rigorous analysis of dualport excitation in beam-forming network (such as Butler matrix and Rotman lens) are presented. The strategies for selecting two input ports of beam-forming network in dual-port excitation and choosing the phase differences between two input ports are both given. A simple reconfigurable network is presented for realization of the single-/dual-port excitation, which can be easily extended for more input ports in beam-forming network. For verification, a 4 4 Butler matrix with the reconfigurable network and four-element array is designed and fabricated. The measured results show a good agreement with the theoretical analysis.
Original language | English |
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Journal | IEEE Transactions on Antennas and Propagation |
Early online date | 8 Jun 2018 |
DOIs | |
Publication status | E-pub ahead of print - 8 Jun 2018 |
Keywords
- absorptive switch
- Adaptive arrays
- Beam-forming network
- Butler matrices
- Butler matrix
- dual-port excitation
- Lenses
- Phased arrays
- reconfigurable power divider
- Rotman lens
- Switches
ASJC Scopus subject areas
- Electrical and Electronic Engineering