5-Bit, Ka-Band Core Chip

The CGY2350UH/C1 is a high performance pHEMT technology GaAs MMIC 5-bit core chip operating in Ka-band. It exhibits 2 RF ports including 2 switches. It includes a 5-bit digital phase shifter, a 5-bit digital attenuator, and switches. It has a phase shifting range of 348° and a gain setting range of 15.5 dB. It covers the frequency range from 34 to 36 GHz.

The on-chip control logic with serial input register minimizes the number of bonding pads and greatly simplifies the interfacing to this device.

This die is manufactured using 0.18 μm gate length ED02AH pHEMT Technology. The MMIC uses gold bond pads and backside metallization and is fully protected with Silicon Nitride passivation to obtain the highest level of reliability. This technology has been evaluated for Space applications and is on the European Preferred Parts List of the European Space Agency.

Product Specifications

Part Number
5-Bit, Ka-Band Core Chip
Min Frequency(GHz)
Max Frequency(GHz)
Transmit Gain(dB)


  • Gain: 4 dB (Rx), 3 dB (Tx)
  • Noise Figure: 6 dB (Rx)
  • RMS Phase Error: 5°
  • RMS Amplitude Error: 0.4 dB (Tx), 0.6 dB (Rx)
  • Output P1dB: 10 dBm (Tx)
  • Input Return Loss: -11 dB (Rx), -13 dB (Tx)
  • Output Return Loss: -13 dB (Rx), -8 dB (Tx)
  • Total Power Consumption: 250 mW @ 3.3 V
  • Chip Size: 3000 x 4700 μm
  • Tested, Inspected Known Good Die (KGD)
  • RoHS* Compliant

Technical Resources


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5-Bit, Ka-Band Core Chip