Table 3 Comparison with other reported CP array antennas.
From: A V-band high-gain gap waveguide-based slot array antenna with circular polarization
Ref | Technology | Array size | f0 (GHz) | IBW (%) | ARBW (%) | Peak gain (dBic) | Peak efficiency (%) | No. of layers |
|---|---|---|---|---|---|---|---|---|
SIW | 4×4 | 60 | 28.1 | 19.2 | 16.7 | 52.5 | 3 | |
SIW | 8×8 | 60 | 18.2 | 16.5 | 26.1 | 72.2 | 3 | |
Hollow waveguide | 6×8 | 30 | 3 | 1 | 23.6 | - | 3 | |
Hollow waveguide | 32×32 | 61.5 | 15.8 | 15.1 | 38.5 | 82 | 6 | |
RGW | 1×8 | 78 | 6.5 | 6.5 | 14.8 | 84 | 2 | |
RGW | 8×18 | 77.5 | 3.9 | 3.9 | 27.3 | 85 | 2 | |
RGW | 1×8 | 77 | 3.9 | 3.2 | 15 | 78 | 4 | |
GGW | 1×10 | 30 | 4 | 8 | 16.5 | 98 | 2 | |
This work: | RGW | 16×16 | 60 | 6.6 | 6.6 | 29.2 | 90 | 3 |
