- Technologie got better: Empfindlichkeit erhöht, Das Antennendesign wurde besser, also Patch-Antennen (integriert mit PCB oder integriert mit dem Gehäuse) became not just practical but universal.
- The second technology reason is probably an aspect that antennas have become much more complex: multiple bands, MIMO, usw. Als Ergebnis, it is important they are aligned just so, and placed carefully. Patch antennas fixed at manufacture make that practicable.
- From a consumer perspective, antennas were not necessary most of the time anyway. Famously, there was one model of cellphone (a Motorola I think) that did not have an external antenna in Europe or Asia (where they were considered ugly & old-fashioned) – but did have in the USA because that was what the market required, because they were considered better.
- Natürlich, it would have been really hard (electrical design, Leiterplattenlayout, RF testing, EMC compliance) to actually have two designs – so the US market had an ‘antenna; which was a plastic fake; the rest of the world had exactly the same phone but no fake plastic antenna.
Weiterlesen: So entwerfen Sie eine Leiterplattenantenne wie ein Profi?
#Leiterplattenbestückung #PCB-Design
