Super duper LTE antenna

I have found nice LTE antenna on eBay with amazing 35dB gain. I know that figure is total nonsense but I expected that antenna will have some serious design and just description is bit improved. But I have been totally wrong! Take a look. I would like to do some measurement in future but I am not sure if I want to waste my time on this. Hmmm....  
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Document about device Sigfox antenna design

Designing Sigfox antenna for your device? I just found very nice document about antenna design for Sigfox (and other IoT ;-) devices. I know how complicated is find right balance between design of device itself and antenna inside. This is valid especially for B2C devices where antenna should be in best case invisible. So I thing that document is very helpful. http://www.sigfox.com/en/resources/white-paper/antenna-design-essentials-for-sigfox-ready-tm-devices and here is a webinar http://www.s...
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