Newbie question: When using the PCB antenna library, one of the antenna pins is not connected. I want to know how to solve it.

haha丶

Newbie question: When using the PCB antenna library, one of the antenna pins is not connected. I want to know how to solve it. [Copy link]

When using the PCB antenna library, one of the antenna pins is not connected. I want to know how to solve it. The software is AD18

Also, how should I use the antenna that does not have schematic diagram symbols (such as pins 0 and 1) but only has a library?

haha丶

Also, how should I use the antenna that does not have schematic diagram symbols (such as pins 0 and 1) but only has a library?

chunyang

Manual connection means, also pay attention that the area around the antenna cannot be wrapped with ground, your PCB design is wrong.

chunyang

In addition, looking at your circuit diagram, the input is an SMA interface, and the circuit is just a low-pass, so there is no need to do this, the cost is too high. At this time, it is better to use a 1/4 wavelength wire or a spiral antenna directly at the front-end output. There are also many finished antennas with SMA interfaces.

haha丶

OK, I will hollow out the area around the antenna. Can I just connect the antenna with P+L? Don't worry about it reporting errors or anything?

Regarding the SMA interface, I just intend to leave a place for the vector network analyzer to connect, and I don’t plan to use the SMA connector. When I first came into contact with these, I just planned to draw a few more antennas on a board, and then come back to test and learn about impedance matching.

Do you think I can draw like this?

qwqwqw2088

The PCB antenna library has a flat inverted F type
and an inverted L type.

If you are testing and learning about impedance matching, one thing to note is that the electrical parameters and performance of the PCB antenna are also determined by the substrate used, especially the core thickness and dielectric constant.

A few days ago, I provided a document to a netizen, you can refer to it.

https://en.eeworld.com/bbs/thread-1165691-1-1.html

haha丶

qwqwqw2088 Published on 2021-5-17 22:32 The library of PCB antennas has flat inverted F type and inverted L type. If you want to test and learn about impedance matching, there is one thing you need to pay attention to, PC ...

Ok, I'll go learn that, thank you very much for your help!