Abstract
This article presents the design, construction and performance comparison of three 4×4 Butler matrix technologies working on the Ka-band: standard microstrip, standard microstrip with metasurface packaging and inverted microstrip gap waveguide technology (IM-GWG). Measurement results show that the packaged microstrip and the IM-GWG exhibit less losses, with a good compromise in cost and performance compared to the conventional microstrip Butler matrix.
Original language | English |
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Article number | 153248 |
Journal | AEU - International Journal of Electronics and Communications |
Volume | 122 |
DOIs | |
State | Published - Jul 2020 |
Keywords
- Butler matrix
- Gap waveguide
- Inverted microstrip
- Microstrip packaged