For LTE - it is certainly slant 45. It was determined that since the handset could not be determined to be in a specific position (and phones are typically held at a slant 45 to the head) that it was the best polarization for cellular.
For instance: https://www.commscope.com/product-type/antennas/base-station-antennas-equipment/base-station-antennas/itemmbllhhh-65c-vtm/ For 3G I think it primarily had to do with the carrier - Sprint/Nextel used a lot of omnis and I believe those were all V-pol. Standard pol antennas in cellular booster kits I think are primarily driven by cost, and that if 3dB is what is the difference between it working or not it might as well not. Antenna polarity at the end of the day I don't think has much implication in the cellular world. Of course it matters if you are trying to boost a marginal signal - but as someone else already said it has probably already reflected off something once so... photograph Daniel White Co-Founder & Managing Director of Operations phone: +1 (702) 470-2770 direct:+1 (702) 470-2766 > Chuck McCown <mailto:ch...@wbmfg.com> > September 13, 2020 at 14:50 > Are cell signals V pol? > > Sent from my iPhone >
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