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RF IC-Beamformer-MS4601

Product Overview:

The MS4601 is a wideband amplitude and phase beamforming IC operating across the C/X/Ku bands (5–18 GHz). It integrates 4 transmit (Tx) channels and 4 receive (Rx) channels, along with on-chip power splitting networks (Tx) and combining networks (Rx), as well as amplitude and phase control circuits for each channel.

The device supports power regulation, temperature sensing, power detection, and beam storage functions. It features symmetric RF ports and single-pin Tx/Rx switching, with control based on a standard 4-wire SPI interface.

Built on a fully self-developed forward design architecture, the MS4601 is offered in both die form (MS4601K) and packaged form (MS4601E) to accommodate a range of integration needs.

  • The bare die version is ideal for COB assembly, custom packaging, microwave hybrid assembly, or compact SIP designs.
  • The plastic package version enables easy SMT-based integration, reduces micro-assembly complexity, and facilitates rapid phased-array system validation.

The MS4601 is well-suited for applications in phased array radar, satellite communication systems, and wideband sensing systems.

 

 

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  • Product Details

Functional Block Diagram

Product Highlights:

  • Ultra-wideband operation from 5 to 18 GHz
  • CMOS process, enabling low-cost mass production
  • Excellent RF performance: flat Tx/Rx gain, high output power, and high-accuracy amplitude and phase control
  • High integration and multifunctionality:

— Integrated 5-channel power control: supports PA gate bias (PA_VG), drain bias (PA_VD), LNA drain bias (LNA_VD), switch control (SW), attenuator (ATT), phase shifter (PHS), etc., enabling direct interface with compound semiconductor ICs.

— Integrated temperature sensor and temperature compensation, ensuring stable performance across a wide temperature range

— Integrated quantized 8-bit ADC

— Integrated power detector, covering –20 to +10 dBm input range

— Integrated beam storage supporting up to 121 preset beam states

— Integrated beam control logic for amplitude/phase switching, channel control, and auxiliary functions

Key Features:

  • Operating frequency: 5–18 GHz
  • TDD half-duplex transmit/receive switching
  • 4T4R RF channels with integrated power splitters and combiners
  • 360° phase control, 7-bit resolution, 8° LSB
  • 5 dB amplitude control range, 6-bit resolution, 0.5 dB LSB
  • Integrated bias and channel control
  • Integrated temperature sensor
  • Integrated 8-bit ADC
  • Beam storage for up to 121 beam states
  • Power detection range: –20 dBm to +10 dBm
  • Single-pin Tx/Rx switch control
  • Standard 4-wire SPI interface
  • Rx path supports both standard bias mode and high IP1dB mode

Applications:

  • Phased array radar
  • Satellite communication systems

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