leroy105‭

I have a handheld ARM Cortex M based device, which has a USB input port. The product is battery powered and there is no metal chassis. We are going through CE testing, and are having ESD issues a...

4 answers  ·  posted 4y ago by leroy105‭  ·  last activity 3y ago by Pete W‭

I have a 900MHz radio with a reference design matching network. The radio feeds to a PCB antenna (PCB antenna hasn't been verified with a VNA, and may not be a great match; this is a project to n...

2 answers  ·  posted 3y ago by leroy105‭  ·  last activity 3y ago by leroy105‭

We got a copy of the hardware and took a first crack using a lowpass Chebyshev filter at 950MHz (radio transmits up to ~930MHz). On the first pass, we got a .2dBm drop on the fundamental [margin o...

posted 3y ago by leroy105‭  ·  edited 3y ago by leroy105‭

Definently agree. This original post hits a whole punch of EE topics. Sure, if the OP was an expert in consumer microwaves and WiFi theory and RF and FCC Compliance - they could write an epic pos...

posted 3y ago by leroy105‭

Actually I think this is a really good question. It's kind of more historical though I guess (and I don't know the historical answer either, but from building products perspective I think this is...

posted 3y ago by leroy105‭  ·  edited 3y ago by leroy105‭