![A compact and miniaturized implantable antenna for ISM band in wireless cardiac pacemaker system | Scientific Reports A compact and miniaturized implantable antenna for ISM band in wireless cardiac pacemaker system | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-04404-3/MediaObjects/41598_2021_4404_Fig1_HTML.png)
A compact and miniaturized implantable antenna for ISM band in wireless cardiac pacemaker system | Scientific Reports
![Is this normal the antenna bands look like dirty metal almost let me know if your guys have this on your iPhone 11 black : r/iPhone11 Is this normal the antenna bands look like dirty metal almost let me know if your guys have this on your iPhone 11 black : r/iPhone11](https://preview.redd.it/peqpz60psrz61.jpg?width=640&crop=smart&auto=webp&s=7065da83793ed64cba23174bf026168832d80102)
Is this normal the antenna bands look like dirty metal almost let me know if your guys have this on your iPhone 11 black : r/iPhone11
![Apple Invents Material That Looks Like Metal and Could Rid iPhone of Unsightly Antenna Bands - iClarified Apple Invents Material That Looks Like Metal and Could Rid iPhone of Unsightly Antenna Bands - iClarified](https://www.iclarified.com/images/news/49958/234392/234392-640.jpg)