# E281ES Keysight Waveguide Adapter New

**Features:**

-   ruggedized 1.0 mm female connector for use with a measurement instrument with a ruggedized 1.0 male connector
-   E-band, 60 GHz to 90 GHz
-   return loss: >=16 dB (20 dB typical)
-   insertion loss: <=0.7 dB (0.5 dB typical) 

The Keysight E281ES in-line ruggedized 1.0 mm (f) - to - WR-12 waveguide adapter offers a way of interconnecting a ruggedized 1.0 mm connector port to a waveguide device in E-band, 60 GHz to 90 GHz. The waveguide port of the adapter is equipped with a metrology grade interface that includes an outer anti-cocking ring for repeatable connections and precision alignment holes above and below the broad wall of the waveguide opening to provide more accurate alignment for connecting calibration standards.

## Details

- **Price:** 5851.0 USD
- **Vendor:** Keysight
- **Type:** Wave Adap
- **Tags:** product_manual_group_3

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5851.00 USD | In stock |

## Images

- E281ES Keysight Technologies Waveguide Adapter

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> Source: [ValueTronics](https://valuetronics.com/products/e281es-keysight-waveguide-adapter-new)
> Updated: 2026-05-29