Waveguide Variable Attenuators
Titan Microwave Inc. offers a standard product line of variable attenuators covering waveguide sizes WR10 thru
WR770. Attenuation will range from 0 – 30dB while flatness is held to + 1.5dB. VSWR is held to 1.30:1 maximum over
the full waveguide band. Additional sizes and configurations are available upon request.
Test Benches ✧ Instrumentations ✧ Research and Development ✧ System Calibration
Rectangular Waveguide Low Power Variable Attenuators
| Model | WR# | Frequency Range(GHz) | Power(W) | Attenuation Range(dB) | VSWR |
| TWVA770W11 | 770 | 0.96~1.46 | 11 | 0~30 | 1.2 |
| TWVA650W11 | 650 | 1.13~1.73 | 11 | 0~30 | 1.2 |
| TWVA510W11 | 510 | 1.45~2.20 | 11 | 0~30 | 1.2 |
| TWVA430W11 | 430 | 1.72~2.61 | 11 | 0~30 | 1.2 |
| TWVA340W11 | 340 | 2.17~3.30 | 11 | 0~30 | 1.2 |
| TWVA284W11 | 284 | 2.60~3.95 | 11 | 0~30 | 1.2 |
| TWVA229W11 | 229 | 3.22~4.90 | 11 | 0~30 | 1.2 |
| TWVA187W11 | 187 | 3.94~5.99 | 11 | 0~30 | 1.2 |
| TWVA159W11 | 159 | 4.64~7.05 | 11 | 0~30 | 1.2 |
| TWVA137W11 | 137 | 5.38~8.17 | 11 | 0~30 | 1.2 |
| TWVA112W11 | 112 | 6.57~9.99 | 11 | 0~30 | 1.2 |
| TWVA229W9 | 229 | 3.22~4.90 | 9 | 0~30 | 1.2 |
| TWVA187W7 | 187 | 3.94~5.99 | 7 | 0~30 | 1.2 |
| TWVA159W5 | 159 | 4.64~7.05 | 5 | 0~30 | 1.2 |
| TWVA137W4 | 137 | 5.38~8.17 | 4 | 0~30 | 1.2 |
| TWVA112W3 | 112 | 6.57~9.99 | 3 | 0~30 | 1.2 |
| TWVA90 | 90 | 8.20~12.4 | 2 | 0~30 | 1.2 |
| TWVA75 | 75 | 9.84~15.0 | 1 | 0~30 | 1.2 |
| TWVA62 | 62 | 11.9~18.0 | 1 | 0~30 | 1.2 |
| TWVA51 | 51 | 14.5~22.0 | 1 | 0~30 | 1.25 |
| TWVA42 | 42 | 17.6~26.7 | 1 | 0~30 | 1.25 |
| TWVA34 | 34 | 21.7~33.0 | 1 | 0~30 | 1.25 |
| TWVA28 | 28 | 26.5~40.0 | 1 | 0~30 | 1.25 |
| TWVA22 | 22 | 32.9~50.1 | 1 | 0~30 | 1.3 |
| TWVA19 | 19 | 39.2~59.6 | 0.5 | 0~30 | 1.3 |
| TWVA15 | 15 | 49.8~75.8 | 0.5 | 0~30 | 1.3 |
| TWVA12 | 12 | 60.5~91.9 | 0.5 | 0~30 | 1.3 |
| TWVA10 | 10 | 73.8~112 | 0.5 | 0~30 | 1.3 |
Rectangular Waveguide High Power Variable Attenuators
| Model | WR# | Frequency Range(GHz) | Power(W, Max) | Attenuation Range(dB) | VSWR |
| TWHVA770 | 770 | 0.96~1.46 | 4000 | 0~30 | 1.25 |
| TWHVA650 | 650 | 1.13~1.73 | 4000 | 0~30 | 1.25 |
| TWHVA510 | 510 | 1.45~2.20 | 4000 | 0~30 | 1.25 |
| TWHVA430 | 430 | 1.72~2.61 | 4000 | 0~30 | 1.25 |
| TWHVA340 | 340 | 2.17~3.30 | 4000 | 0~30 | 1.25 |
| TWHVA284 | 284 | 2.60~3.95 | 4000 | 0~30 | 1.25 |
| TWHVA229 | 229 | 3.22~4.90 | 4000 | 0~30 | 1.25 |
| TWHVA187 | 187 | 3.94~5.99 | 4000 | 0~30 | 1.25 |
| TWHVA159 | 159 | 4.64~7.05 | 4000 | 0~30 | 1.25 |
| TWHVA137 | 137 | 5.38~8.17 | 3000 | 0~30 | 1.25 |
| TWHVA112 | 112 | 6.57~9.99 | 3000 | 0~30 | 1.25 |
| TWHVA90 | 90 | 8.20~12.4 | 3000 | 0~30 | 1.25 |
| TWHVA75 | 75 | 9.84~15.0 | 3000 | 0~30 | 1.25 |
| TWHVA62 | 62 | 11.9~18.0 | 1000 | 0~30 | 1.25 |
| TWHVA51 | 51 | 14.5~22.0 | 1000 | 0~30 | 1.25 |
| TWHVA42 | 42 | 17.6~26.7 | 600 | 0~30 | 1.3 |
| TWHVA34 | 34 | 21.7~33.0 | 600 | 0~30 | 1.3 |
| TWHVA28 | 28 | 26.5~40.0 | 600 | 0~30 | 1.3 |
| TWHVA22 | 22 | 32.9~50.1 | 600 | 0~30 | 1.3 |
| TWHVA19 | 19 | 39.2~59.6 | 300 | 0~30 | 1.3 |
| TWHVA15 | 15 | 49.8~75.8 | 300 | 0~30 | 1.3 |
| TWHVA12 | 12 | 60.5~91.9 | 200 | 0~30 | 1.3 |
| TWHVA10 | 10 | 73.8~112 | 200 | 0~30 | 1.3 |