2-Port Ka-Band Integrated Core Chip



Package Acces BW (GHz) Interface Bit LSB

Attenuation/ Phase Range  

Status Process
Die 2 ports 27-30 CMOS, Serial 6 0.7dB/5.6° 22dB/360° Production



The CGY2351UH/C1 is a high performance GaAs MMIC Core Chip operating in Ka-band. It follows the T/R architecture, is passive, and exhibits only 2 RF ports. It includes a 6 bit Phase shifter and a 5 bits attenuator; it has a phase shift range of 360° with a 5.62° step and attenuation range of 22 dB with 0.7 dB step. It operate from 26.5 to 30.5 GHz.
The on-chip control logic with serial input register minimizes the number of bonding pads and greatly simplifies the interface with this device.
This die is manufactured using OMMIC’s 0.18 μm gate length ED02AH PHEMT Technology. The MMIC uses gold bonding pads and backside metallization. It is fully protected by a Silicon Nitride passivation layer to obtain the highest level of reliability. This technology has been evaluated for Space applications by the European Space Agency (ESA) and is on the European Preferred Parts List of ESA.









  • Radar
  • Telecommunications
  • Instrumentation



  • Operating Range : 27 GHz to 30 GHz
  • Phase shift = 6bits
  • Attenuator = 5 bits
  • Phase Shift Range = 360° (LSB 5.625°)
  • Attenuation Range = 22 dB(LSB 0.7dB)
  • RMS Phase Error < 3° @ all states
  • RMS Amplitude Error
  • IRL/ORL = 15dB
  • Total Power Consumption ≈ 75mW
  • Die size = 4.8 x 1.6 mm
  • Available March 2016



Block diagram of the 6 bit Ka-band Core Chip


Applicaton Note