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Ka-Band 4-Port Diplexer with Circular Polarization for Antenna Networks

The Ext. Ka-Band Tx_Rx 4-Port Diplexer with Circular Polarization from Dolph Microwave is an advanced solution tailored for high-frequency applications. This diplexer is designed to manage both transmit and receive operations in the Ka-Band frequency range, supporting circular polarization with options for Right-Hand Circular Polarization (RHCP) and Left-Hand Circular Polarization (LHCP). Its robust construction and precise engineering make it an ideal choice for demanding telecommunications and satellite communication systems.

Key Specifications

The following table provides a comprehensive overview of the specifications for the Ext. Ka-Band Tx_Rx 4-Port Diplexer:

Specification Value
Model DH-FEED-Ext. Ka-RT-CP-01 / DH-FEED-Ext. Ka-RT-LP-01
Frequency Range Rx: 17.7 – 21.2 GHz, Tx: 27.5 – 31.0 GHz
VSWR 1.25:1
Insertion Loss Rx: 0.5 dB max, Tx: 0.35 dB max
Axial Ratio Tx: 0.75 dB, Rx: 1.0 dB
Polarization Dual RHCP/LHCP
Isolation between Ports Tx to Rx (Tx Freq) – CP mode: min. 85 dB, LP mode: min. 85 dB
Rx to Rx: 18 dB (CP mode), 35 dB (LP mode)
Tx to Tx: 18 dB (CP mode), 35 dB (LP mode)
Power Handling Min. 500 W CW each port
Waveguide Size Rx: WR220/WR42, Tx: WR320/WR28
Flanges FBP-220 and FBP-320
Common Port 9.4 mm SQ, or customizable
Material Aluminum with Chromate Conversion Coated
Finish White Paint (FED-STD-595C 17875)
Weight 500 g
Size L150H50W90 mm
Options Standard COTS feed horns for f/D: 0.375, 0.6, 0.8

This diplexer offers exceptional performance characteristics, including low insertion loss and high isolation, which ensures minimal interference between transmission and reception paths.

Advantages of the Ext. Ka-Band Tx_Rx 4-Port Diplexer

  1. High Isolation and Low Loss: With isolation values as high as 85 dB in CP mode and minimal insertion loss, this diplexer ensures clear and reliable signal transmission, even in challenging environments.
  2. Dual Polarization Support: The dual RHCP/LHCP polarization provides flexibility for diverse operational requirements, making it suitable for advanced communication applications.
  3. Durable Design: Constructed from aluminum with chromate conversion coating, the diplexer is lightweight yet resilient, ensuring long-lasting performance under various conditions.
  4. Customizable Common Port: This diplexer allows customization of the common port, offering users adaptability to meet specific installation needs.

Typical Applications

The Ext. Ka-Band Tx_Rx 4-Port Diplexer is suited for high-demand applications, such as:

  • Satellite Communications: This diplexer is ideal for satellite systems operating within the Ka-band, supporting reliable data transmission and reception over long distances.
  • Telecommunications: With its high isolation and dual polarization, this diplexer meets the rigorous demands of modern telecommunication systems.
  • Aerospace and Defense: The diplexer’s lightweight, durable construction and high-frequency range make it suitable for use in aerospace and defense sectors where reliable communication is essential.

Dimensions and Outline

The diplexer’s compact design, measuring 150 mm in length, 50 mm in height, and 90 mm in width, allows it to fit into a wide range of setups. Its outline drawing provides detailed dimensions for easy integration into communication systems.

For more information on this and other high-performance microwave products, please visit the Dolph Microwave website.

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