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On 7/22/22 2:00 AM, Diane BONKOUNGOU wrote: > Hi all, I am a beginner in RF system design and have some questions. > I have a PCB trace antenna, I need to tune it to 2.45GHz, this is for Bluetooth

You would want to pass DC through to your antenna if the antenna might have a pre-amp that needs the DC for power. Also in some cases, DC grounding the antenna is good practice for safety, like when

What matters is the impedance of the antenna at the frequency where you will use it. Impedances at other frequencies, resonant or not, don't really matter. SherpaDoug

Hello, Hi, I am a beginner in antenna design and tuning. I want my antenna to have a resonant frequency of 2.45GHz for low-energy Bluetooth communication. And I want to know what to consider for the

Maybe it easier to build the antenna that it has 50 ohms input then tune a mismatch with a network Dg9bfc sigi Am 22.07.2022 12:08 schrieb F1AMM <18471@...>:

If it is above all an impedance adaptation that you are looking for, it is easier to use an 'L' adapter. It will be low pass or high pass. You will choose it as impedance step-up or step-down. You can

Hi all, I am a beginner in RF system design and have some questions. I have a PCB trace antenna, I need to tune it to 2.45GHz, this is for Bluetooth low-energy communication. I want to use a

It's available in IEEE Xplore. The scan on the IEEE pdf isn't bad. Moire on the halftone figures. Drawings and text is sharp.

Thanks, Blocked last year due to court order/injunction https://torrentfreak.com/sci-hub-elsevier-and-springer-nature-obtain-uk-isp-blocking-order-210218/ Kind regards Ed

Charlie, that's true although this isn't in a car , it's in a bespoke design I am doing and I am in control of the termination at both ends.

In sonar that would be called a tone burst.

There's a mini-UHF that I've seen on things like land mobile VHF radio, and on older cell phones (instead of a TNC). Unlike the PL-259, it's actually designed for constant impedance. It's really more

Jim, not just the UK. It's not the net Nazis. I could not access it either. Something to do with no 'academic access" and, of course, not an IEEE member. I'm not sure even an IEEE member would allow

Had no idea that the UK censors the internet. Good reason to get a VPN. Anyway: https://1drv.ms/b/s!AvpPJnaZGO4PiHD2Qt_oLBZfweoD?e=dxDhWi

Ed, I just noticed that I misread the datasheet. The SWB2010-PCL goes from 5 kHz to 100 MHz at 3 dB down. The low end is remarkably low. The less flat SWB-2010-1-PCL goes from 40 kHz to 175 MHz. Brian

Thanks Brian, information much appreciated Ed, G8FAX

Some time back I acquired a cable with connectors on each end that resemble PL-259s, but are *much* smaller. Anybody know what these are, and what sort of equipment is likely to use them? -- Member of

CAN Bus in a car has term resistor and each end.

It should work fine. That STP has a "reasonably well controlled" impedance, but i wouldn't be surprised by 5% changes. It might be most useful to do the TDR type display, rather than a S11. Then you