Y-Junction Isolators - Series 178
Цена: руб.
Y-Junction Isolators - Series 178
| Description | Features |
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Mi-Waves’ 178 series is an H-plane, three port Yjunction ferrite device with one arm internally terminated in a matched load. Reflected energy is circulated into this load to isolate the input. All external mating surfaces are machined to extreme flatness to provide connection to standard waveguide flanges for minimum discontinuity. The 178 series isolators are available in standard waveguide sizes from 18.0 to 110 GHz, in round style flanges only. Applications The 178 series Y-junction isolators are useful in test setup and operational systems. These devices provide a high degree of isolation between signal sources and system loads by sharply attenuating reflected signals with very low loss in the forward direction. |
• Low Loss • Low VSWR • High Isolation • Broad Bandwidth • Compact and Rugged • Optimal Temperature Response
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| Dimensional Specifications | |||||||||||
| Model No. | A | A | B | B | C | C | D | D | E | E | |
| in | mm | in | mm | in | mm | in | mm | in | mm | ||
| 178K | 1.50 | 38.1 | 1.25 | 31.8 | 1.18 | 29.97 | .59 | 14.9 | .59 | 14.9 | |
| 178A | 1.50 | 38.1 | 1.25 | 31.8 | 1.18 | 29.97 | .59 | 14.9 | .59 | 14.9 | |
| 178B | 1.50 | 38.1 | 1.25 | 31.8 | 1.18 | 29.97 | .59 | 14.9 | .59 | 14.9 | |
| 178U | 1.50 | 38.1 | 1.25 | 31.8 | 1.18 | 29.97 | .59 | 14.9 | .59 | 14.9 | |
| 178V | 1.10 | 27.9 | 1.00 | 25.4 | .90 | 22.9 | .50 | 12.7 | .50 | 11.4 | |
| 178E | 1.10 | 27.9 | 1.00 | 25.4 | .90 | 22.9 | .50 | 12.7 | .50 | 11.4 | |
| 178W | 1.10 | 27.9 | 1.00 | 25.4 | .90 | 22.9 | .50 | 12.7 | .50 | 11.4 | |
| 178F | 1.10 | 27.9 | 1.00 | 25.4 | .90 | 22.9 | .50 | 12.7 | .50 | 11.4 | |
| Technical Specifications (typical) | ||||||||
| Model Number | 178K | 178A | 178B | 178U | 178V | 178E | 178W | 178F |
| Frequency Band(GHz) | 18.0-26.5 | 26.5-40.0 | 33.0-50.0 | 40.0-60.0 | 50.0-75.0 | 60.0-90.0 | 75.0-110.0 | 90.0-140.0 |
| Bandwidth¹ | 2.0GHz | 1.5GHz | 1.3GHz | 1.3GHz | 1.5GHz | 1.5GHz | 1.5GHz | 1.5Ghz |
| Isolation(dB) | 20.0 | 20.0 | 20.0 | 18 | 18 | 15 | 15 | 15 |
| Insertion Loss(dB) | 0.4 | 0.4 | 0.5 | 0.7 | 0.8 | 0.9 | 1.0 | 1.3 |
| VSWR Max. | 1.30 | 1.30 | 1.30 | 1.35 | 1.40 | 1.40 | 1.40 | 1.4 |
| Temperature Range | ___________ -15ºC to +65ºC _____________ | ___0º-50º____ | ||||||
| Peak Power(kW) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Average Power(Watts) | ||||||||
| Forward | 30 | 30 | 25 | 15 | 10 | 5 | 5 | 2 |
| Backward | 1.5 | 1.0 | 0.8 | 0.4 | 0.3 | 0.2 | 0.2 | 0.2 |
| Weight(oz) | 3.0 | 3.0 | 3.0 | 3.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Flange Type | UG425/U | UG381/U | UG383/U | UG383/U | UG385/U | UG387/U | UG387/U | UG387/U |
| 1. Specify center frequency. | ||||||||
