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Teardown Tuesday: HB100 Doppler Radar Module

posted by janrinok on Saturday July 06 2024, @01:58PM   Printer-friendly

owl writes:

https://www.allaboutcircuits.com/news/teardown-tuesday-hb100-doppler-radar-module/

Join us as we crack open an HB100 Doppler radar module and delve into the mysteries of RF component design.

In this special edition of Teardown Tuesday, we crack open an HB100 Doppler radar module and delve into the mysteries of RF component design.

The HB100 Doppler Radar module costs about $5 from the usual online suspects, which is down at the "insanely cheap" end of the spectrum when you're talking about 10Ghz radio gear. Does it work? Surprisingly, yes. It needs some support components for most uses (like a post-amplifier for the "couple of millivolts" signal it outputs) but does its part of the job well enough.

[...] Frankly, I was rather shocked by what I found. I wasn't expecting much, but I got far less.

I don't know who designed this, but they were a master of the black art of Radio Frequency waveguide engineering. I am impressed. The PCB, itself, is a major component. Not only for the patch antennas but also several RF filters, the local oscillator, and the mixer are all largely made from peculiarly-shaped PCB tracks.

What would you build with it?

Original Submission

 
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  • (Score: 3, Funny) by Barenflimski on Saturday July 06 2024, @03:38PM (2 children)

    by Barenflimski (6836) on Saturday July 06 2024, @03:38PM (#1363298)

    I blew off both of my hands and accidentally killed the neighbors dog. M80's 4 l1fe!

    Starting Score:    1  point
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  • (Score: 2, Funny) by Anonymous Coward on Saturday July 06 2024, @03:44PM (1 child)

    by Anonymous Coward on Saturday July 06 2024, @03:44PM (#1363299)

    I blew off both of my hands and accidentally killed the neighbors dog. M80's 4 l1fe!

    So are you a hunt and pecker typist now?

    • (Score: 3, Funny) by Barenflimski on Saturday July 06 2024, @06:23PM

      by Barenflimski (6836) on Saturday July 06 2024, @06:23PM (#1363313)

      I use my nose and toes for most of the keys. I hit the spacebar with my ass.