@azonenberg@ioc.exchange2025-06-20 02:46:28
I'm pretty happy with the top side Samtec ARF6 launch simulations now.
S11:
* Red: No cutout, -12 dB at 10 GHz, -7 at 20 GHz, -4.8 at 30 GHz
* Blue: Rectangular ground cutout the size of the pad, -22.5 at 10 GHz, -16.4 at 20 GHz, -11.7 at 30 GHz
* Green: 30um larger than the pad on all sides (1.06 x 0.41 mm), -30.5 at 10 GHz, -22 at 20, -15 at 30.
With the oversized cutout it's more than good enough for QSGMII and 25Gbase-R.
TDR:
* Red: No cutou…
@cdarwin@c.im2025-06-14 17:25:20
Top adviser to supreme leader dies in hospital following Israeli attack
Ali Shamkhani, Iran’s top adviser to its supreme leader, Ayatollah Khamenei,
has died in the hospital a day after Israel launched airstrikes across the country.
Shamkhani had previously served as Iran’s top national security official for a decade and had represented Iran in the China-facilitated rapprochement talks with Saudi Arabia
@cdarwin@c.im2025-06-08 01:58:49
On Friday, Trump’s border czar,
Tom Homan, said he plans to send the National Guard to Los Angeles
to combat protests against ICE that began this weekend following immigration raids in the city.
“We are making Los Angeles safer. Mayor Bass should be thanking us. She says they are going to mobilize—guess what?
We are already mobilizing.
We are going to bring the National Guard in tonight,”
Homan told Fox News.
California Governor Gavin Newsom respo…
