• HMC499LC4 Spars

    Would you be able to provide s-parameter data for the HMC499LC4 for the gain response below 18 GHz?

  • HMC499LC4 eval board gerbers

    Would I be able to get the Gerber file or dxf of the top layer of the eval board for the HMC499LC4?

  • HMC499LC4 - Gain variation

    What is the gain variation expected over many parts for a fixed gate voltage near typical?

  • RE: ADS simulation libraries for HMC524LC3B, HMC499LC4, HMC1040LP3CE

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • Maximum rating of gate bias current of Vgg for HMC499LC4


    I recieved an inquiry about maximum rating of the current of Vgg pin for HMC499LC4 from my customer. Do you have the current value? Or do you know reference current value of Vgg pin in mormal case?

    Best regards,


  • RE: HMC499LC4_Bias on/off for TDD

    Dear team,

    Is there a bias on/off solutions about HMC499LC4?


    Best regards,


  • RE: EVB PCB design for Hittite devices.

    Gerber file for HMC499LC4 and HMC962LC4 attached.

  • RE: HMC564LC4 Footprint

    Hi katsu,

    For the LC4 and LC4B footprints, please see attached.

    Also, the EVB Gerber files are now available on the product page (see direct link below):


  • 【在线研讨会回顾】雷达系统应用相关技术和解决方案




  • RE: 36GHz RF oscillation signal source

    You need a PLL which drives a frequency doubler which drives an amplifier. Possible choices might be ADF4371 (PLL),  HMC1105 (frequency doubler) and HMC7229 (amplifier). These are not the only choices.