To address Ka-Band satellite-on-the-move (SOTM) requirements, Dolph Microwave has added WR28 Dual-Channel Rotary Joint model DH-320WRJUIPMA to its family of microwave rotary joints. This miniature dual-channel device features a high-power transmit channel implemented in a right-angle WR28 waveguide on the fixed (input) side and a female K-type coaxial connector on the rotating (output) side, while the receive channel uses two female SMA connectors.
The central transmit channel of the DH-320WRJUIPMA covers Ka-Band frequencies from 27.5 to 31 GHz and delivers excellent microwave performance, with a maximum power rating of 40 W CW, a typical insertion loss of only 0.5 dB and a maximum VSWR of 1.25:1. The L-Band receive channel uses two female SMA coaxial connectorsand normally operates over the DC to 2.0 GHz frequency range. It offers a microwave power rating of 5 W CW, a maximum DC current rating of 500 mA (for powering the LNB), an insertion loss of 0.25 dB and a typical VSWR of 1.5:1.
WR28 Dual-Channel Rotary Waveguide Joint
- Model：DH-320WRJUIPMA
- Channel 1：WR28
- Operating Frequency：27.5-31.0 GHz
- VSWR (Max)：≤1.50
- Insertion Loss (Max)：0.5 dB
- Insertion loss WOW：0.2 dB
- Average Power：40 W
- Peak Power：0.4 KW
- Flange：FBP320 (Cover) / FBM120 (Grooved)
- Channel 2：Coaxial
- Operating Frequency：DC-2.0 GHz
- VSWR (Max)：≤1.50
- Average Power：5 W
- Insertion Loss (Max)：0.3 dB
- DC Power：20 V, 0.5 Amp
- Isolation Channels：50 dB
- Material：Aluminum
- Inside Finish：Conductive Oxidation
- Outside Finish：Anticorrosion White Paint
- Style：I style
- Temperature Range：-55°C ~ +70°C
