Worked well for me with a NEO-M9N module. Was able to get a lock inside (close to a window).

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Product details
The Molex GNSS Flex antenna is a great option for basic GNSS applications and will work with any of our GNSS boards equipped with a U.FL at a fraction of the cost of many of its big brothers. This antenna supports GPS, Galileo, BeiDou, and GLONASS in three different frequency bands (1561 +/-3MHz, 1575 +/-3MHz, 1602 +/-3MHz). The Molex Flexible GNSS Antenna has an incredibly small footprint at 40.40mm x 15.40mm, while the adhesive pad is a bit bigger at 56.40mm x 20mm. Even better, the antenna is only 0.1mm thick (or about the thickness of a piece of paper). Simply remove the backing and stick this to any surface, or leave the backing on (just be careful of the fragile U.FL connector).
