This is a large 2017 compendium on Iberian Bell Beakers (linked below) with a lot of attention on Portugal and Southern Spain. The leading archaeologists from the corners of the peninsula presented their cases knowing the early results of the Olalde et al, 2017 pre-print.
Iberia is not that simple for beakers and you get a sense of that reading from the authors presenting here. It's hard to interpret Iberian Beakers as a coherent group when they are so inconsistent from site to site, region to region. But it's important to remember the size of the peninsula when overlayed on a map of Europe. It's a huge area with great human numbers of diverse backgrounds in ancient times. So rather than saying there is an Iberian Beaker, there's probably several different Beaker nations or traveling groups that were in a constant state of flux and having slightly different cultural backgrounds.
One of the Portuguese Olalde samples was a 'Beaker without Bell Beakers' as presented by Zilhao. That's a complicated situation when the individual is only classified as Beaker by a scrap of gold, two buttons and turns up genomically Neolithic (not saying that's wrong). But identity isn't always as simple as the Amesbury Archer.
And then Goncalves seems to suggests in the introduction that acacia decoration is found outside of Iberia everywhere in a very low degree which would be interesting. (again the translation is garbled, I may have misinterpreted this)
Gonçalves, V. S. (Ed.). (2017). Sinos e Taças. Junto ao oceano e mais
longe. Aspectos da presença campaniforme na Península Ibérica. Lisboa:
UNIARQ - Centro de Arqueologia da Universidade de Lisboa. http://hdl.handle.net/10451/31912
Universidade de Lisboa, UNIARQ download [Link]