28 GHz Beamforming Front End IC
Operating from 26.5 GHz to 29.5 GHz

The SUMMIT2629™ is an eight-channel RF front-end for 28 GHz, 5G phased array antenna systems fabricated in RF-SOI.

The SUMMIT 2629 was designed to address the challenges constraining 5G mmWave performance by:

  • Extending the link range to decrease infrastructure costs and improve customer satisfaction.
  • Reducing power consumption and thermal dissipation.
  • Reducing antenna array complexity and overall RF front-end cost.

Operating from 26.5 to 29.5 GHz, the SUMMIT 2629 RFIC integrates power amplifiers (PA), low noise amplifiers, T/R switching, beamformers with beam table memory, calibration, gain control and temperature and power telemetry with a high-speed system peripheral interface (SPI) for control. A single SUMMIT 2629 provides two sets of four channels for two antenna polarizations – a total of eight channels per RFIC.


  • Four-element Dual-pol. TX/RX with Independent Polarization Beam Directions
  • High-Power, High-Efficiency SOI CMOS Power Amplifiers
  • State-of-the-art Low-Noise Amplifiers and Low-Loss T/R Switching
  • Ultra-low Transmit and Receive-Mode Power Consumption
  • 6-bit full-360o Phase Shifting and 0.5dB-step 16dB-range Variable Gain in Each Path
  • Fully calibrated for Gain/Phase Matching Across ICs
  • Extensive On-chip Temperature and Power Sensing
  • On-chip Gain Control for Temperature Compensation
  • High-Speed SPI with Large On-Chip Beam Table Storage
  • Wafer-Level Chip-Scale Package (WLCSP) compatible with low-cost PCB manufacturing
  • Support for Large-Scale Arrays through Multiple Chip-Addressing Modes


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